Eating Disorders

Number: 0511


Aetna considers the following services and procedures medically necessary for the management of members with anorexia or bulimia.

  1. Assessment:

    • Blood count and serum chemistry (e.g., CBC, electrolytes, BUN/creatinine)
    • Bone density measurement (for evaluation of anorexic members) (see CPB 0134 - Bone Mass Measurements)
    • Electrocardiography
    • Liver function tests
    • Medical evaluation (complete medical history and physical examination)
    • Psychiatric/psychological consultation and testing
    • Urinalysis.
  2. Treatment:

    • Nutritional counseling (see CPB 0049 - Nutritional Counseling)
    • Pharmacotherapy for the treatment of anorexia (e.g., selective serotonin reuptake inhibitors and anti-psychotics)**
    • Pharmacotherapy for the treatment of bulimia (e.g., selective serotonin reuptake inhibitors such as fluoxetine, tricyclic anti-depressants, trazodone, topiramate)**
    • Pharmacotherapy for the treatment of binge-eating disorder (e.g., lisdexamfetamine dimesylate (Vyvanse)) (Note: Coverage may be excluded under plans that exclude coverage of medications to decrease or increase weight. Please check benefit plan descriptions.)**
    • Psychotherapy (e.g., cognitive behavioral therapy, family psychotherapy, interpersonal psychotherapy, and psychodynamic psychotherapy).

** Note: Coverage of particular drugs within each class may be subjected to formulary restrictions, where applicable.

Aetna considers the following services/procedures experimental and investigational for the diagnosis and treatment of anorexia and bulimia because of insufficient evidence in the peer-reviewed literature.

  1. Assessment:

    • Brain imaging
    • Estrogen receptor 1 gene (ESR1) polymorphism testing (for anorexia)
    • Individual Optimal Nutrition (ION) analysis/profile
    • Measurement of blood levels of peripheral brain derived neurotrophic factor (BDNF) (for bulimia)
    • Measurement of serum concentration of brain derived neurotrophic factor (for anorexia)
    • Serotonin transporter gene (5-HTTLPR) polymorphism testing (for bulimia)
  2. Treatment:

    • Acamprosate calcium (Campral) for the treatment of binge eating disorder
    • Bisphosphonates and other anti-resorptive agents in the management of osteopenia in anorexic members
    • Bupropion (Zyban), lithium, and naltrexone for the treatment of bulimia and binge eating disorder (bupropion only)
    • Cholinesterase inhibitors (e.g., donepezil) for the treatment of anorexia
    • Chromium for the treatment of binge eating disorder
    • Deep brain stimulation (treatment-refractory anorexia)
    • Dehydroepiandrosterone for the treatment of anorexia
    • Estrogen for the treatment of anorexia
    • E-therapy (via Internet and mobile-device applications) for the treatment of eating disorders
    • Intranasal naloxone for the treatment of binge eating disorder
    • Light therapy for the treatment of night eating syndrome
    • Melatonergic medications for the treatment of night eating syndrome
    • Oral contraceptives in preventing bone loss in amenorrheic persons with an eating disorder
    • Repetitive transcranial magnetic stimulation
    • The Mandometer treatment.

Eating disorders are characterized by marked disturbances in eating behavior.  There are 2 severe forms of eating disorders -- (i) anorexia nervosa and (ii) bulimia nervosa.  Anorexia usually commences in the years between adolescence and young adulthood, with 90 % of the patients being female.  In the female gender, anorexia has a prevalence of approximately 1 % with a lifetime mortality rate of 15 to 20 %.  There are 3 classical symptoms associated with this eating disorder: (i) refusal to maintain a minimally normal body weight (e.g., weight loss leading to maintenance of body weight less than 85 % of that expected; or failure to attain expected weight gain during period of growth, leading to body weight less than 85 % of that expected), (ii) disturbance of body image and intense fear of being fat, and (iii) in post-menarcheal females, amenorrhea (i.e., absence of 3 consecutive menstrual cycles).  A diagnosis of anorexia should be considered for a young woman with symptoms of an eating disorder, amenorrhea, and a body mass index of 17.5 kg/m2 or lower.  Similar considerations apply to a male patient with unexplained weight loss.

Bulimia is more common than anorexia.  In females, bulimia has a prevalence of 2 to 5 %, but a lesser mortality rate.  It is characterized by 4 key symptoms: (i) over-concern with weight and body shape, (ii) recurrent episodes of binge eating, (iii) recurring subsequent purging, restriction, or excessive exercise, and (iv) binge eating and subsequent inappropriate compensatory behaviors, occurring a minimum average of twice a week for at least 3 months.  In contrast to patients with anorexia, individuals with bulimia are generally in normal weight range, although recurrent weight changes are frequently observed.

The majority of patients with eating disorders can be treated in the outpatient settings.  Hospitalization is usually reserved for severely symptomatic patients such as individuals with extremely low body weight (75 % or less of expected body weight) whose condition must be hemodynamically stabilized, or those with medical problems requiring intensive monitoring such as patients with electrolyte imbalances, cardiac arrhythmias, profound hypoglycemia, self-mutilation, impaired capacity for self-care, or active suicidal ideation.  Furthermore, failure of outpatient treatment may also constitute grounds for inpatient treatment.  It should be noted that patients with bulimia rarely need hospitalization unless binge-purge cycle has led to anorexia resulting in severe metabolic deficiencies such as severe electrolyte imbalances, or suicidal depression is present.

A complete blood count may reflect anemia due to nutritional deficiency.  Serum electrolyte imbalances may occur in patients with bulimia.  Other laboratory tests include blood urea nitrogen/creatinine levels, serum measurements of calcium, magnesium, phosphorus, urinalysis, and liver function tests.  An electrocardiogram may aid to identify cardiac abnormalities such as sinus bradycardia, as well as signs of hypokalemia or ipecac-induced myopathy.  In general, brain imaging and bone mineral density studies are not necessary.  A psychiatric assessment of patients with an eating disorder is appropriate for identification of any concurrent psychiatric illness, evaluation of the risk of suicide, and exploration of the psychosocial context of the symptoms.

Treatments for patients with eating disorders include nutritional counseling; psychotherapy such as cognitive behavioral therapy, family psychotherapy, inter-personal psychotherapy, and psychodynamic psychotherapy; as well as pharmacotherapy.  Nutritional counseling, with a reasonable, graduated eating plan tied to specific weight goals, as well as psychotherapy are essential.  Medication plays an important, but limited role in the management of eating disorders.  In general, drug therapy is not effective in treating anorexia -- zinc, cyproheptadine, anti-depressants, and neuroleptic agents -- have not been shown to improve symptoms.

On the contrary, pharmacotherapy is moderately effective in treating bulimia.  High-dose (60-mg) fluoxetine (Prozac) and other selective serotonin reuptake inhibitors (SSRIs) such as trazodone (Desyrel) have been shown to be helpful in treating bulimia.  Tricyclic anti-depressants such as imipramine (Tofranil) and desipramine (Norpramin) have been demonstrated to reduce binge eating and vomiting in bulimic patients.  Monoamine oxidase inhibitors such as phenelzine (Nardil) should not be used as initial pharmacotherapy for bulimia because of their considerable side effects.  Bupropion (Zyban) is contraindicated in the treatment of bulimia because of increased risk of seizures.  Neither naltrexone nor lithium has been shown to be effective in treating bulimia. The role of bisphosphonates (e.g., alendronate and risedronate) and other anti-resorptive agents in the management of osteopenia in anorexic patients has not been established.  In a randomized controlled trial (RCT), Golden et al (2005) concluded that in adolescents with anorexia nervosa, weight restoration is the most important determinant of bone mineral density, but treatment with alendronate did increase the bone mineral densities of the lumbar spine and femoral neck within the group receiving alendronate, but not compared with placebo in the primary analysis.  Until additional studies have demonstrated efficacy and long-term safety, the use of alendronate in this population should be confined to controlled clinical trials.  Dietary supplements are usually not recommended for anorexia.  In a RCT, Barbarich et al (2004) concluded that supplement strategies are not a substitute for adequate nutrition and are ineffective in increasing the efficacy of fluoxetine in underweight anorexia nervosa subjects.  Tube or intravenous feeding is rarely needed or recommended unless the patient's condition is life threatening.

An evidence review on the management of eating disorders prepared for the Agency for Healthcare Research and Quality (AHRQ) (Berkman et al, 2006) stated that no medications are available that effectively treat patients suffering from anorexia nervosa, but a few behavioral therapies may help prevent a relapse and offer other limited benefits.  A Cochrane review on anti-depressants for anorexia nervosa (Claudino et al, 2006) also concluded that a lack of quality information precludes definite conclusions or recommendations being rendered on the use of anti-depressants in acute anorexia nervosa.  Future studies testing safer and more tolerable anti-depressants in larger, well-designed studies are needed to provide guidance for clinical practice.

The review by AHRQ also noted that both medications (e.g., fluoxetine, tricyclic anti-depressants) and behavioral therapies were found helpful in treating bulimia nervosa; however, there was no clear information about how to combine medications with behavioral treatments (Berkman et al, 2006).

In a clinical trial, Miljic et al (2006) evaluated the effects of ghrelin, a gastric hormone, on appetite, sleepiness, and neuroendocrine responses in patients with anorexia nervosa.  A total of 25 young women, including 9 patients diagnosed with anorexia nervosa with very low body weight, 6 patients who partially recovered their body weight but were still amenorrheic, and 10 constitutionally thin female subjects, without history of eating disorder, weight loss, with regular menstrual cycles, were included in the study.  Each patient received 300-min intravenous infusion of ghrelin 5 pmol/kg/min and was asked to complete visual analog scale (VAS) questionnaires hourly.  Main outcome measures were VAS scores for appetite and sleepiness, growth hormone (GH), prolactin, and cortisol responses were measured.  At baseline, patients with anorexia nervosa had significantly higher ghrelin, GH, and cortisol levels and significantly lower leptin than constitutionally thin subjects.  Responses of GH to ghrelin infusion were blunted in patients with anorexia nervosa. Ghrelin administration did not significantly affect appetite but tended to increase sleepiness in patients with anorexia nervosa.  These investigators concluded that ghrelin is unlikely to be effective as a single appetite stimulatory treatment for patients with anorexia nervosa.  These results suggested that patients with anorexia nervosa are less sensitive to ghrelin in terms of GH response and appetite than healthy controls.  Ghrelin effects on sleep need further studies.

The Mandometer treatment is a controversial program for patients with eating disorders.  It is a residential program that averages approximately 12 months in duration.  While management of patients with eating disorder has often included psychiatric treatment, advocates of the Mandometer treatment assert that standard psychiatric treatment is largely ineffective for these patients.  They believe anorexia and bulimia to be essentially the same disorder.  The Mandometer treatment for both anorexics and bulimics consists of re-teaching eating habits with a computerized, hand-held Mandometer (it gives continuous biofeedback about food intake over the course of meals), re-learning sensations of satiety, external heating by resting in warm rooms and using warm jackets, restriction of physical activity, and social re-construction to restore normal social interactions without the use of psychoactive drugs.

The clinical value of the Mandometer treatment for the management of patients with eating disorders has not been established.  Its effectiveness need to be validated by well-designed studies. Evidence for the effectiveness of the Mandometer treatment came primarily from a Swedish group (Bergh et al, 1996; Bergh et al, 2002; Court et al, 2005).  In a RCT, Bergh and colleagues (2002) assessed the effectiveness of the Mandometer treatment. A total of 16 patients, randomly selected out of a group composed of 19 patients with anorexia nervosa and 13 with bulimia nervosa, were trained to eat and recognize satiety by using computer support.  They rested in a warm room after eating, and their physical activity was restricted. The patients in the control group (n = 16) received no treatment.  Remission was defined by normal body weight (anorexia), cessation of binge eating and purging (bulimia), a normal psychiatric profile, normal laboratory test values, normal eating behavior, and resumption of social activities.  Fourteen patients went into remission after a median of 14.4 months (range of 4.9 to 26.5 months) of treatment, but only 1 patient went into remission while waiting for treatment (p = 0.0057).  Relapse is considered a major problem in patients who have been treated to remission.  Thus, these researchers reported results on a total of 168 patients who have entered their treatment program.  The estimated rate of remission was 75 %, and estimated time to remission was 14.7 months (quartile range of 9.6 greater than or equal to 32).  Six patients (7 %) of 83 who were treated to remission relapsed, but the others (93 %) have remained in remission for 12 months (quartile range of 6 to 36 months).  Because the risk of relapse is maximal in the first year after remission, the authors suggested that most patients treated with this method recover.  Furthermore, these investigators noted that although these results are promising, they realized the necessity to further develop their method.  For example, it is necessary to examine if one of their interventions is more important than another, and if their procedures should be modified.  More importantly, however, is that a RCT comparing this method with the standard of care for eating disorders is needed.  Court et al (2005) presented the case of a girl with severe anorexia nervosa who had previously been resistant to treatment, and who was subsequently treated successfully by the Mandometer program.

In a single-center, randomized, double-blind, sham-controlled study, Walpoth et al (2008) examined the effectiveness of repetitive transcranial magnetic stimulation in the treatment of bulimia nervosa.  A total of 14 women meeting DSM-IV criteria for bulimia nervosa (BN) were included in this trial.  In order to exclude patients highly responsive to placebo, all patients were first submitted to a 1-week sham treatment.  Randomization was followed by 3 weeks of active treatment or sham stimulation.  The main outcome criterion was the change in binges and purges.  Secondary outcome variables were the decrease of the Hamilton Depression Rating Scale (HDRS), the Beck Depression Inventory (BDI) and the Yale-Brown Obsessive Compulsive Scale (YBOCS) over time.  The average number of binges per day declined significantly between baseline and the end of treatment in the 2 groups.  There was no significant difference between sham and active stimulation in terms of purge behavior, BDI, HDRS and YBOCS over time.  The authors concluded that these findings indicated that repetitive transcranial magnetic stimulation in the treatment of BN does not exert additional benefit over placebo.

McElroy and colleagues (2009) discussed the role of anti-epileptic drugs (AEDs) in the management of patients with eating disorders.  Of the available AEDs, topiramate appears to have the broadest spectrum of action as an anti-binge eating, anti-purging and weight loss agent, as demonstrated in 2 placebo-controlled studies in BN and 3 placebo-controlled studies in binge-eating disorder (BED) with obesity.  Topiramate may also have beneficial effects in night-eating syndrome and sleep-related eating disorder, but controlled trials in these conditions are needed.  The results of 1 small controlled study suggest that zonisamide may have efficacy in BED with obesity.  However, both topiramate and zonisamide are associated with adverse effect profiles that may limit their use in patients with eating disorders.  Phenytoin may be effective in some patients with compulsive binge eating, especially if co-morbid EEG abnormalities are present, but available data are too varied to allow definitive conclusions to be made.  Carbamazepine and valproate may be effective in treating patients with BN or anorexia nervosa when they are used to treat an associated psychiatric (e.g., mood) or neurological (e.g., seizure) disorder; otherwise, both agents, particularly valproate, are associated with weight gain.  The authors concluded that AEDs have an emerging role in the management of some eating disorders.

Mehler and MacKenzie (2009) reviewed the evidence on the treatment of osteopenia and osteoporosis in patients with anorexia nervosa.  These researchers identified controlled clinical studies of interventions for low bone mass in patients with anorexia nervosa via searches of MEDLINE; the Cochrane Library; EMBASE; PsycINFO; and cumulative index to nursing and allied health literature.  Outcomes of interest were changes in bone mineral density and fracture incidence.  A total of 6 RCTs and 2 cohort trials examined 5 classes of medical therapy on bone mineral density outcomes.  One RCT of bisphosphonates showed no benefit and a second flawed RCT showed some benefit; 1 RCT showed a benefit of insulin-like growth factor-I; none of the 5 trials evaluating estrogen therapy showed benefit.  The authors concluded that although patients with anorexia nervosa are often losing bone mass when they should be optimizing bone growth, there is no good evidence to guide medicinal interventions.  Thus, early detection and weight restoration are of utmost importance whereas ongoing trials define effective therapies.

American Psychiatric Association guidelines on eating disorders (2006) state that, although hormone replacement therapy (HRT) is frequently prescribed to improve bone mineral density in female patients, no good supporting evidence exists either in adults or in adolescents to demonstrate its efficacy. Hormone therapy usually induces monthly menstrual bleeding, which may contribute to the patient's denial of the need to gain further weight. Before estrogen is offered, it is recommended that efforts be made to increase weight and achieve resumption of normal menses.

Guidelines on eating disorders from the American Psychiatric Association (2006) state that there is no indication for the use of bisphosphonates such as alendronate in patients with anorexia nervosa. Although there is no evidence that calcium or vitamin D supplementation reverses decreased bone mineral density, when calcium dietary intake is inadequate for growth and maintenance, calcium supplementation should be considered, and when the individual is not exposed to daily sunlight, vitamin D supplementation may be used. However, large supplemental doses of vitamin D may be hazardous.

NICE guidelines (2004) state that oral estrogen and oral DHEA do not appear to have a positive impact on bone density and hormone replacement therapy is not recommended in children and adolescents as it may cause premature fusion of the bones.

Halabe Bucay (2009) stated that anorexia nervosa is a serious, multi-factorial disease, characterized by psychiatric and neurological disturbances, which would appear to be similar to the manifestations of dementia.  Patients with anorexia nervosa present compromised affectivity, characterized by hypomanic, manic and depressive symptoms, and their cholinergic system is altered with a decrease in the release of acetylcholine.  Donepezil is a drug that been proven to be effective in the treatment of dementia, including Alzheimer's; it has been used for affective disorders and its mechanism of action is to inhibit the acetylcholinesterase enzyme to increase acetylcholine.  Thus, donepezil could be effective in treating anorexia nervosa.  However, there is a lack of evidence regarding the clinical value of cholinesterase inhibitors in treating anorexia.

In a review on the identification and treatment of eating disorders in the primary care setting, Sim and colleagues (2010) focused on the practical issues faced by primary care physicians in the management of these conditions and other issues central to the care of these complex patients with medical and psychiatric co-morbid conditions.  These investigators noted that there is little evidence to support the use of oral contraceptives in preventing bone loss in amenorrheic patients with an eating disorder.  They also stated that SSRIs have little benefits in treating eating disorder symptoms or preventing relapse in patients with anorexia nervosa.

In a placebo-controlled trial, McElroy and colleagues (2011) evaluated preliminarily the effectiveness of acamprosate in binge eating disorder (BED).  In this 10-week, flexible dose RCT, a total of 40 outpatients with BED received acamprosate (n = 20) or placebo (n = 20).  The primary outcome measure was binge eating episode frequency.  While acamprosate was not associated with a significantly greater rate of reduction in binge eating episode frequency or any other measure in the primary longitudinal analysis, in the endpoint analysis it was associated with statistically significant improvements in binge day frequency and measures of obsessive-compulsiveness of binge eating, food craving, and quality of life.  Among completers, weight and bone mass index decreased slightly in the acamprosate group but increased in the placebo group.  The authors concluded that although acamprosate did not separate from placebo on any outcome variable in the longitudinal analysis, results of the endpoint and completer analyses suggested the drug may have some utility in BED.

Brandys et al (2011) noted that brain derived neurotrophic factor (BDNF) is involved in neuroplasticity, and in the homeostatic regulation of food intake and energy expenditure.  It also has a role in stress responsivity and reward processing.  On the basis of its involvement in these various processes, BDNF can be hypothesized to be an important factor in the development and maintenance of anorexia nervosa (AN).  These reserchers meta-analytically summarized investigations of serum BDNF concentrations in people currently ill with AN, in comparison to healthy controls.  A total of 7 studies measuring BDNF in serum of individuals with AN (n = 155) and healthy controls (n = 174) were identified and included in the meta-analysis of the mean differences between case and control groups.  This study confirmed that AN is associated with decreased serum BDNF concentrations, in comparison to healthy controls.  The combined effect size (standardized mean difference, SMD) was large (SMD = -0.96; 95 % confidence interval [CI]: -1.33 to -0.59; p < 0.001).  Significant heterogeneity of effect sizes was identified (I(2) = 58.3 %; p < 0.001), which emerged as being primarily attributable to the first published study on the investigated association.  The authors concluded that meta-analytical summary of studies measuring circulating BDNF concentrations in women with AN and healthy controls confirms that it is significantly reduced in this patient group.  Moreover, difficulties associated with the measurement of BDNF have been identified and potential confounding factors have been discussed.  They stated that current data do not allow inferences to be made about causal links between levels of circulating BDNF and AN.  However, possible explanations for the relationship between BDNF and AN have been presented.

Dodds et al (2012) noted that the dopamine D(3) receptor is thought to be a potential target for treating compulsive disorders such as drug addiction and obesity.  These researchers used functional magnetic resonance imaging (fMRI) to investigate the effects the selective dopamine D(3) receptor antagonist GSK598809 on brain activation to food images in a sample of over-weight and obese binge-eating subjects.  Consistent with previous studies, processing of food images was associated with activation of a network of reward areas including the amygdala, striatum and insula.  However, brain activation to food images was not modulated by GSK598809.  The results demonstrated that D(3) receptor manipulation does not modulate brain responses to food images in over-weight and obese subjects.

Kontis and Theochari (2012) stated that dopamine has been implicated in the pathophysiology of AN by pre-clinical and clinical evidence.  Pre-clinical studies have examined 2 main characteristics of AN: (i) reduction in food intake (diet restriction), and (ii) hyperactivity.  Diet restriction has been associated with reduced dopamine levels in the hypothalamus, hippocampus, and the dorsal striatum.  Animal hyperactivity following diet restriction has been linked to increased dopamine in the hypothalamus.  Increased dopamine in the nucleus accumbens was associated with food administration, but not food expectation.  Tyrosine and dopaminergic antagonists normalized anorexia-like behaviors in animal models of AN, but did not restore body weight.  Clinical studies on the etiology of AN have produced contradictory findings.  Cerebrospinal fluid concentrations of dopamine and its metabolites have been reported to be decreased or normal under conditions of low weight, whereas they tended to normalize when the weight was restored.  Plasma and urinary levels of dopamine and its metabolites have been found to be normal, increased, and decreased.  Neuroendocrine studies suggested that dopaminergic neurotransmission is increased in AN.  However, recent neuroimaging studies lend support to the increase in binding of dopaminergic receptors in the striatum, which favors the opposite theory that intra-synaptic dopamine is indeed decreased.  Genetic studies implicate dopamine D2 receptors, the dopamine transporter, and the enzyme COMT.  The authors concluded that there are promising results with respect to the use of atypical antipsychotics against symptoms of AN beyond weight gain, but further trials are required.

Anorexia nervosa is characterized by a chronic course that is refractory to treatment in many patients and has one of the highest mortality rates of any psychiatric disorder.  Deep brain stimulation (DBS) has been applied to circuit-based neuropsychiatric diseases, such as Parkinson's disease and major depression, with promising results.  In a pilot study, Lipsman et al (2013) evaluated the safety of DBS to modulate the activity of limbic circuits and examined how this might affect the clinical features of AN.  In this prospective trial, subcallosal cingulate DBS was administered in 6 patients with chronic, severe, and treatment-refractory AN.  Eligible patients were aged 20 to 60 years, had been diagnosed with restricting or binge-purging AN, and showed evidence of chronicity or treatment resistance.  Patients underwent medical optimization pre-operatively and had baseline body-mass index (BMI), psychometric, and neuroimaging investigations, followed by implantation of electrodes and pulse generators for continuous delivery of electrical stimulation.  Patients were followed-up for 9 months after DBS activation, and the primary outcome of adverse events associated with surgery or stimulation was monitored at every follow-up visit.  Repeat psychometric assessments, BMI measurements, and neuroimaging investigations were also done at various intervals.  Deep brain stimulation was associated with several adverse events, only one of which (seizure during programming, roughly 2 weeks after surgery) was serious.  Other related adverse events were panic attack during surgery, nausea, air embolus, and pain.  After 9 months, 3 of the 6 patients had achieved and maintained a BMI greater than their historical baselines.  Deep brain stimulation was associated with improvements in mood, anxiety, affective regulation, and AN-related obsessions and compulsions in 4 patients and with improvements in quality of life in 3 patients after 6 months of stimulation.  These clinical benefits were accompanied by changes in cerebral glucose metabolism (seen in a comparison of composite PET scans at baseline and 6 months) that were consistent with a reversal of the abnormalities seen in the anterior cingulate, insula, and parietal lobe in the disorder.  The authors concluded that subcallosal cingulate DBS seems to be generally safe in this sample of patients with chronic and treatment-refractory AN.  The effectiveness of this approach awaits results from well-designed studies.

The ION™ (Individual Optimal Nutrition) analysis/profile (Metametrix, Norcross, GA) is a comprehensive combination of nutritional analyses that measures blood and urine levels of amino acids including arginine, glycine, and tryptophan  (plasma), anti-oxidants, fatty acids including monounsaturated fatty acids, polyunsaturated omega-3 and omega-t fatty acids (plasma), minerals/elements including calcium, copper, manganese, magnesium, potassium, selenium, and zinc  (red blood cells), organic acids (urine), oxidation products, toxins, and vitamins including vitamin A, B, C, D and E (serum for fat-soluble vitamins).  It supposedly offers a complete evaluation of functions that impact patients' mental and physical well-being. However, there is a lack of evidence regarding the clinical value of the ION analysis/profile in the diagnosis/evaluation of patients with eating disorders. 

Polsinelli et al (2012) stated that several lines of research have found that genes in the serotonergic system may cause susceptibility to eating disorders.  In particular, functional polymorphisms of the serotonin transporter gene (5-HTT) have been suspected to play a role in the pathogenesis of eating disorders.  Several studies have examined the association between the 5-HTTLPR polymorphism and BN.  The results of these investigations have been unclear.   In a meta-analysis, these researchers attempted to clarify the association between BN and 5-HTTLPR using statistical models not used by previous meta-analyses, and extend upon previous meta-analyses by including new samples.  PsychINFO, ISI, and PubMed databases were searched for studies published up to May 2011.  Ultimately, 6 case-control samples were included.  Data were pooled using dominant and additive models.  Both models showed a non-significant association between the 5-HTTLPR polymorphism and BN.  However, this does not detract from recent research suggesting that the 5-HTTLPR polymorphism may be responsible for the phenotypic variability in the psychopathological symptoms observed in patients with BN.  The authors concluded that future research should examine the association of BN with 5-HTTLPR using the recently proposed tri-allelic model.

Zhang et al (2013) stated that estrogen plays essential roles in the regulation of food intake, adiposity, and body weight control.  The estrogen alpha receptor, encoded by estrogen receptor 1 gene (ESR1), has been implicated with AN.  A previous study indicated that the rs2295193 polymorphism in ESR1 may confer a genetic susceptibility to AN.  In a case-control study, these researchers evaluated 195 AN probands and 93 healthy controls; 99 trios were studied in a family-based association analysis through genotyping the rs2295193 polymorphism in ESR1.  Additionally, these investigators carried out a meta-analysis of the combined sample groups.  There were no significant differences in the genotype or allele frequencies of the rs2295193 polymorphism between the AN and control groups (Ps > 0.05).  In the transmission disequilibrium test (TDT) analyses, there was no evidence for biased transmission of the G allele of rs2295193 polymorphism (p = 0.32).  In female-only samples, no significant association was observed between the rs2295193 polymorphism and AN in either case-control or TDT analyses (Ps > 0.05).  The meta-analysis revealed that no excess of transmission of the G allele in AN families (pooled odds ratio = 1.10, p = 0.79).  The authors concluded that meta-analytically combined evidence from the present genotyping and the literature showed that rs2295193 polymorphism in ESR1 is not a major genetic susceptibility factor in AN.

Slof-Op 't Landt et al (2014) noted that the female preponderance and onset around puberty in the majority of eating disorders suggest that sex hormones, like estrogens, may be involved in the onset of these disorders.  An 8- single-nucleotide polymorphisms (SNP) haplotype at the ESR1 gene was found to be associated with AN and 3 SNPs from this haplotype (rs726281, rs2295193, and rs3798577) were associated with AN and/or eating disorders.  These researchers attempted to replicate these findings in an independent cohort of 520 patients with an eating disorder, of whom 244 had AN (142 restricting type) from the GenED study and 2,810 random women from the Netherlands Twin Registry.  The frequencies of the 8-SNP haplotype and 3 ESR1 SNPs were compared between patients with an eating disorder, with AN (restricting type), with BN, and the control women.  Neither the haplotype nor the 3 ESR1 SNPs were associated with eating disorders, BN, AN, or restricting type AN.  The author concluded that despite sufficient statistical power, the associations reported by Versini et al (2010) were not replicated.

Phillips et al (2014) stated that there is currently limited understanding of the etiology of BN.  While multi-faceted etiology is likely, several neurobiological factors may play a role.  Brain derived neurotrophic factor (BDNF), a potential biomarker linked to eating and weight disorders, is one factor of recent investigation.  These investigators examined studies comparing BDNF blood levels in BN to healthy control (HC) subjects.  A systematic review of the literature was conducted utilizing 5 databases (PubMed, CINAHL, EMBASE, PsycINFO, and Medline).  Key terms included eating disorders, BDNF, and bulimia nervosa.  The authors concluded that BDNF blood levels appear lower in BN than in HC subjects; however, studies are needed to examine the influence of possible correlates including symptom severity, mood, medications, exercise, and substance use.

Gluck et al (2014) stated that ghrelin, a peptide hormone secreted mainly by the stomach, increases appetite and food intake.  Surprisingly, ghrelin levels are lower in obese individuals with BED than in obese non-BED individuals.  Acute psychological stress has been shown to raise ghrelin levels in animals and humans.  These researchers evaluated ghrelin levels after a cold pressor test (CPT) in women with BED.  They also examined the relationship between the cortisol stress response and changes in ghrelin levels.  A total of 21 obese (mean [standard deviation] BMI = 34.9 [5.8] kg/m(2)) women (10 non-BED, 11 BED) underwent the CPT, hand submerged in ice water for 2 minutes.  Blood samples were drawn for 70 minutes and assayed for ghrelin and cortisol.  There were no differences between the groups in ghrelin levels at baseline (-10 minutes).  Ghrelin rose significantly after the CPT (F = 2.4, p = 0.024) peaking at 19 minutes before declining (F = 17.9, p < 0.001), but there were no differences between the BED and non-BED groups.  Area under the curve for ghrelin was not related to ratings of pain, stress, hunger, or desire to eat after CPT.  In addition, there were no observed relationships between the area under the curves for ghrelin or cortisol after stress.  The authors concluded that although there were no differences between BED groups, there was a significant rise in ghrelin in obese humans after a stressor, consistent with other recent reports suggesting a stress-related role for ghrelin.

In a randomized, double-blind, placebo-controlled trial, White and Grilo (2013) evaluated the short-term effectiveness of bupropion for the treatment of BED in over-weight and obese women.  A total of 61 over-weight and obese (mean BMI = 35.8) women who met DSM-IV-TR research criteria for BED were randomly assigned to receive bupropion (300 mg/day) or placebo for 8 weeks.  Participants were enrolled from November 2006 to December 2010.  No dietary or lifestyle intervention was given.  Primary outcome measures were binge-eating frequency and percent BMI loss.  Secondary outcome measures were dimensional measures of eating disorder psychopathology, food craving, and depression levels.  A total of 54 (89 %) of randomized participants completed the trial, without differential drop-out between the bupropion and placebo groups.  Mixed-effects analyses revealed significant time effects for all outcomes but no significant differences between bupropion and placebo on any outcome measure except for weight loss.  Participants taking bupropion lost significantly more weight (1.8 % versus 0.6 % BMI loss; F = 10.57, p = 0.002).  The authors concluded that bupropion was well-tolerated and produced significantly greater-albeit quite modest-short-term weight loss in over-weight and obese women with BED.  Bupropion did not improve binge eating, food craving, or associated eating disorder features or depression relative to placebo.  These findings did not support bupropion as a stand-alone treatment for BED.  The authors stated that these preliminary findings regarding short-term weight losses suggested the need for larger and longer-term trials to evaluate the potential utility of bupropion for enhancing outcomes of psychological interventions that have demonstrated effectiveness for BED but fail to produce weight loss.

In a double-blind, randomized, pilot trial, Brownley et al (2013) examined if chromium may be useful in the treatment of BED.  A total of 24 over-weight adults with BED were enrolled in a 6-month double-blind placebo-controlled trial and randomly assigned to receive either 1,000 mcg chromium/day ("high dose"; n = 8) or 600 mcg chromium/day ("moderate dose"; n = 9) as chromium picolinate or placebo (n = 7).  Mixed linear regression models were used to estimate mean change in binge frequency and related psychopathology, weight, symptoms of depression, and fasting glucose.  Fasting glucose was significantly reduced in both chromium groups compared to the placebo group; similarly, numerically, but not significantly, greater reductions in binge frequency, weight, and symptoms of depression were observed in those treated with chromium versus placebo, although statistical power was limited in this pilot trial.  For fasting glucose, the findings suggested a dose-response with larger effects in the high dose compared to moderate dose group.  The authors concluded that these initial findings supported further larger trials to determine chromium's effectiveness in maintaining normal glucose regulation, reducing binge eating and related psychopathology, promoting modest weight loss, and reducing symptoms of depression in individuals with BED.  Studies designed to link the clinical effects of chromium with changes in underlying insulin, serotonin, and dopamine pathways may be especially informative.  The stated that chromium supplementation, if effective, may provide a useful, low-cost alternative to or augmentation strategy for SSRIs, which have partial efficacy in BED.

Loucas et al (2014) stated that the widespread availability of the Internet and mobile-device applications (apps) is changing the treatment of mental health problems.  These investigators reviewed the research on the effectiveness of e-therapy for eating disorders, using the methodology employed by the UK's National Institute for Health and Care Excellence (NICE).  Electronic databases were searched for published RCTs of e-therapies, designed to prevent or treat any eating disorder in all age groups.  Studies were meta-analyzed where possible, and effect sizes with confidence intervals were calculated.  The GRADE approach was used to determine the confidence in the effect estimates.  A total of 20 trials met the inclusion criteria.  For prevention, a CBT-based e-intervention was associated with small reductions in eating disorder psychopathology, weight concern and drive for thinness, with moderate confidence in the effect estimates.  For treatment and relapse prevention, various e-therapies showed some beneficial effects, but for most outcomes, evidence came from single studies and confidence in the effect estimates was low.  The authors concluded that although some positive findings were identified, the value of e-therapy for eating disorders must be viewed as uncertain.  They stated that further research, with improved methods, is needed to establish the effectiveness of e-therapy for people with eating disorders.

McElroy et al (2015) noted that psycho-pharmacologic treatment is playing a greater role in the management of patients with eating disorders.  These investigators reviewed RCTs conducted in AN, BN, BED, and other eating disorders over the past 3 years.  Fluoxetine remains the only medication approved for an eating disorder, that being BN.  Randomized controlled trials of anti-psychotics in AN have had mixed results; the only agent with some evidence of efficacy was olanzapine.  One study suggested dronabinol may induce weight gain in AN.  Preliminary studies suggested lack of efficacy of alprazolam, dehydroepiandrosterone, or physiologic estrogen replacement in AN; erythromycin in BN; and the opioid antagonist ALKS-33 in BED.  In BED with obesity or over-weight, bupropion may cause mild weight loss without seizures, and chromium may improve glucose regulation.  Also in BED, 3 RCTs suggested the stimulant prodrug lisdexamfetamine may reduce binge eating episodes, and another RCT suggested intranasal naloxone may decrease time spent binge eating.  The authors concluded that there remains a disconnection between the size of eating disorders as a public health problem and the lack of pharmacotherapy research of these conditions.

American Psychiatric Association (2006) guidelines state that antianxiety agents used selectively before meals may be useful to reduce patients' anticipatory anxiety before eating, but because eating disorder patients may have a high propensity to become dependent on benzodiazepines, these medications should be used routinely only with considerable caution.

Kucukgoncu et al (2015) stated that night eating syndrome (NES) is a unique disorder characterized by a delayed pattern of food intake in which recurrent episodes of nocturnal eating and/or excessive food consumption occur after the evening meal.  Night eating syndrome is a clinically important disorder due to its relationship to obesity, its association with other psychiatric disorders, and problems concerning sleep.  However, NES often goes unrecognized by both health professionals and patients.  The lack of knowledge regarding NES in clinical settings may lead to inadequate diagnoses and inappropriate treatment approaches.  Therefore, the proper diagnosis of NES is the most important issue when identifying NES and providing treatment for this disorder.  Clinical assessment tools such as the Night Eating Questionnaire may help health professionals working with populations vulnerable to NES.  Although NES treatment studies are still in their infancy, anti-depressant treatments and psychological therapies can be used for optimal management of patients with NES.  Other treatment options such as melatonergic medications, light therapy, and the anti-convulsant topiramate also hold promise as future treatment options.

Lisdexamfetamine Dimesylate (Vyvanse) for Binge-Eating Disorder:

On January 30, 2015, the Food and Drug Administration (FDA) expanded the approved uses of Vyvanse (lisdexamfetamine dimesylate) to treat binge-eating disorder in adults.  The drug is the first FDA-approved medication to treat this condition.  The efficacy of Vyvanse in treating binge-eating disorder was shown in 2 clinical studies that included 724 adults with moderate-to-severe binge-eating disorder.  In the studies, subjects taking Vyvanse experienced a decrease in the number of binge eating days per week and had fewer obsessive-compulsive binge eating behaviors compared to those on placebo.

McElroy et al (2015) examined the safety and effectiveness of lisdexamfetamine dimesylate to treat moderate to severe binge-eating disorder (BED).  These researchers performed a randomized, double-blind, parallel-group, forced dose titration, placebo-controlled clinical trial at 30 sites from May 10, 2011, through January 30, 2012.  Safety and intention-to-treat analyses included 259 and 255 adults with BED, respectively.  Lisdexamfetamine dimesylate at dosages of 30, 50, or 70 mg/day or placebo were provided to study participants (1:1:1:1).  Dosages were titrated across 3 weeks and maintained for 8 weeks.  These investigators followed-up participants for a mean (SD) of 7 (2) days after the last dose.  They assessed the change in binge-eating (BE) behaviors measured as days per week (baseline to week 11) with a mixed-effects model using transformed log (BE days per week) + 1.  Secondary measures included BE cessation for 4 weeks.  Safety assessments included treatment-emergent adverse events, vital signs, and change in weight.  At week 11, log-transformed BE days per week decreased with the 50-mg/day (least squares [LS] mean [SE] change, -1.49 [0.066]; p = 0.008) and 70-mg/day (LS mean [SE] change, -1.57 [0.067]; p < 0.001) treatment groups but not the 30-mg/day treatment group (LS mean [SE] change, -1.24 [0.067]; p = 0.88) compared with the placebo group.  Non-transformed mean (SD) days per week decreased for placebo and the 30-, 50-, and 70-mg/day treatment groups by -3.3 (2.04), -3.5 (1.95), -4.1 (1.52), and -4.1 (1.57), respectively.  The percentage of participants achieving 4-week BE cessation was lower with the placebo group (21.3 %) compared with the 50-mg/day (42.2 % [p = 0.01]) and 70-mg/day (50.0 % [p < 0.001]) treatment groups.  The incidence of any treatment-emergent adverse events was 58.7 % for the placebo group and 84.7 % for the combined treatment group.  In the treatment groups, 1.5 % of participants had serious treatment-emergent adverse effects.  Events with a frequency of at least 5 % and changes in heart rate were generally consistent with the known safety profile.  The mean (SD) change in body weight was -0.1 (3.09), -3.1 (3.64), -4.9 (4.43), -4.9 (3.93), and -4.3 (4.09) kg for the placebo group, the 30-, 50-, and 70-mg/day treatment groups, and the combined treatment groups, respectively (p < 0.001 for each dose versus placebo group comparison in post-hoc analysis).  The authors concluded that the 50- and 70-mg/day treatment groups demonstrated efficacy compared with the placebo group in decreased BE days, BE cessation, and global improvement.  The safety profile was generally consistent with previous findings in adults with attention-deficit/hyperactivity disorder. 

CPT Codes / HCPCS Codes / ICD-10 Codes
Information in the [brackets] below has been added for clarification purposes.   Codes requiring a 7th character are represented by "+":
ICD-10 codes will become effective as of October 1, 2015:
CPT codes covered if selection criteria are met:
76977 Ultrasound bone density measurement and interpretation,peripheral site(s), any method
77078 Computerized tomography, bone mineral density study, 1 or more sites
77080 - 77081 Dual energy x-ray absorptiometry (DXA), bone density study, 1 or more sites
80047 Basic metabolic panel (Calcium, ionized)
80048 Basic metabolic panel (Calcium, total)
80050 General health panel
80053 Comprehensive metabolic panel
80076 Hepatic function panel
81000 - 81005 Urinalysis
85025 - 85027 Blood count; complete (CBC)
90791 - 90792 Psychiatric diagnostic evaluation, without and with medical services
90832 - 90838 Psychotherapy
90845 - 90853 Other psychotherapy
90863 Pharmacologic management, including prescription and review of medication, when performed with psychotherapy services (List separately in addition to the code for primary procedure)
93000 Electrocardiogram, routine ECG with at least 12 leads; with interpretation and report
96101 - 96103 Psychological testing
96150 - 96151 Health and behavior assessment or re-assessment
96152 - 96155 Health and behavior intervention
CPT codes not covered for indications listed in the CPB:
There is no specific code for the measurement of serum concentration of brain derived nurotrophic factor:
70450 - 70470 Computed tomography, head or brain
70496 Computed tomographic angiography, head, with contrast material(s), including non-contrast images, if peformed, and image post-processing
70551 - 70553 Magnetic resonance (e.g., proton) imaging, brain (including brain stem)
70554 - 70555 Magnetic resonance imaging, brain, functional MRI
78600 - 78610 Brain imaging
90867 Therapeutic repetitive transcranial magnetic stimulation (TMS) treatment; initial, including cortical mapping, motor threshold determination, delivery and management
90868       subsequent delivery and management, per session
90869       subsequent motor threshold re-determination with delivery and management
96900 Actinotherapy (ultraviolet light)
Other CPT codes related to the CPB:
90785 Interactive complexity (List separately in addition to the code for primary procedure)
96127 Brief emotional/behavioral assessment (eg, depression inventory, attention-deficit/hyperactivity disorder [ADHD] scale), with scoring and documentation, per standardized instrument
HCPCS codes not covered for indications listed in the CPB:
A4633 Replacement bulb/lamp for ultraviolet light therapy system, each
E0691 - E0694 Ultraviolet light therapy system, includes bulbs/lamps, timer and eye protection
J1740 Injection, ibandronate sodium, 1 mg
J2310 Injection ,naloxone HCI, per 1 mg
J2315 Injection, naltrexone, depot form, 1 mg
J2430 Injection, pamidronate disodium, per 30 mg
J3110 Injection, teriparatide, 10 mcg
J3489 Injection, zoledronic acid, 1 mg
S0106 Bupropion HCl sustained release tablet, 150 mg, per bottle of 60 tablets
ICD-10 codes covered if selection criteria are met:
F50.00 - F50.02 Anorexia nervosa
F50.2 Bulimia nervosa
F80.8 Other eating disorders
Deep Brain Stimulation:
CPT codes not covered for indications listed in the CPB:
61863 Twist drill, burr hole, craniotomy, or craniectomy with stereotactic implantation of neurostimulator electrode array in subcortical site (e.g., thalamus, globus pallidus, subthalamic nucleus, periventricular, periaqueductal gray), without use of intraoperative microelectrode recording; first array
+61864     each additional array (List separately in addition to primary procedure)
61867 Twist drill, burr hole, craniotomy, or craniectomy with stereotactic implantation of neurostimulator electrode array in subcortical site (e.g., thalamus, globus pallidus, subthalamic nucleus, periventricular, periaqueductal gray), with use of intraoperative microelectrode recording; first array
+61868     each additional array (List separately in addition to primary procedure)
61880 Revision or removal of intracranial neurostimulator electrodes
61885 Insertion or replacement of cranial neurostimulator pulse generator or receiver, direct or inductive coupling; with connection to a single electrode array
+61886     with connection to 2 or more electrode arrays
90867 Therapeutic repetitive transcranial magnetic stimulation (TMS) treatment; initial, including cortical mapping, motor threshold determination, delivery and management
90868     subsequent delivery and management, per session
90869     subsequent motor threshold re-determination with delivery and management
95970 Electronic analysis of implanted neurostimulator pulse generator system (eg, rate, pulse amplitude, pulse duration, configuration of wave form, battery status, electrode selectability, output modulation, cycling, impedance and patient compliance measurements); simple or complex brain, spinal cord, or peripheral (ie, cranial nerve, peripheral nerve, sacral nerve, neuromuscular) neurostimulator pulse generator/transmitter, without programming
95971     simple spinal cord, or peripheral (ie, peripheral nerve, sacral nerve, neuromuscular) neurostimulator pulse generator/transmitter, with intraoperative or subsequent programming
95974     complex cranial nerve neurostimulator pulse generator/transmitter, with intraoperative or subsequent programming, with or without nerve interface testing, first hour
+95975     complex cranial nerve neurostimulator pulse generator/transmitter, with intraoperative or subsequent programming, each additional 30 minutes after first hour (List separately in addition to code for primary procedur
95978 Electronic analysis of implanted neurostimulator pulse generator system (eg, rate, pulse amplitude and duration, battery status, electrode selectability and polarity, impedance and patient compliance measurements), complex deep brain neurostimulator pulse generator/transmitter, with initial or subsequent programming; first hour
95979     each additional 30 minutes after first hour (List separately in addition to code for primary procedure)
96020 Neurofunctional testing selection and administration during noninvasive imaging functional brain mapping, with test administered entirely by a physician or other qualified health care professional (ie, psychologist), with review of test results and report
HCPCS codes not covered for indications listed in the CPB :
C1767 Generator, neurostimulator (implantable), nonrechargeable
C1778 Lead, neurostimulator (implantable)
C1816 Receiver and/or transmitter, neurostimulator (implantable)
C1883 Adaptor/ extension, pacing lead or neurostimulator lead (implantable)
C1897 Lead, neurostimulator test kit (implantable)
E0745 Neuromuscular stimulator, electronic shock unit
L8680 - L8683, L8685 - L8689 Neurostimulators and accessories
L8695 External recharging system for battery (external) for use with implantable neurostimulator, replacement only
ICD-10 codes not covered for indications listed in the CPB:
F50.00 - F50.02 Anorexia nervosa
Individual Optimal Nutrition (ION) analysis/profile:
No specific code
ICD-10 codes not covered for indications listed in the CPB::
F50.00 - F50.02 Anorexia nervosa
F50.2 Bulimia nervosa

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