Eating Disorders — CPB 0511 | AETNA Coverage Update

Aetna modified CPB 0511 for eating disorders, effective December 20, 2025. Here's what billing teams need to know about covered services, excluded procedures, and the long list of codes now explicitly flagged as experimental.

Aetna, a CVS Health company, updated its eating disorders coverage policy under CPB 0511 in the Aetna system, covering assessment and treatment services for anorexia, bulimia, and binge-eating disorder. The update affects a wide range of CPT codes — from bone density studies like 77080 (DXA) and 77081, to psychotherapy codes 90832–90838, to psychiatric evaluation codes 90791 and 90792. It also draws a hard line on what Aetna will not pay for, including deep brain stimulation procedures (CPT 61863, 61867, 61885) and a lengthy list of biomarker tests. If your practice bills mental health, behavioral health, or eating disorder treatment to Aetna members, this policy affects your reimbursement.

Quick-Reference Table

Aetna Eating Disorder Coverage Criteria and Medical Necessity Requirements 2025

The Aetna eating disorders coverage policy under CPB 0511 covers assessment and treatment for members with anorexia nervosa, bulimia nervosa, and binge-eating disorder — but only when specific medical necessity criteria are met.

On the assessment side, Aetna covers the standard workup you'd expect. Blood counts and serum chemistry panels (CPT 85025, 85026, 85027, 80047, 80048, 80053) are covered. Liver function tests (CPT 80076) are covered. Urinalysis (CPT 81000–81005) is covered. Electrocardiography (CPT 93000) is covered. Psychiatric and psychological evaluation (CPT 90791, 90792) is covered. Psychological testing (CPT 96130, 96131, 96136–96139, 96146) is covered.

For anorexia specifically, bone density measurement is covered as a medically necessary assessment tool. That means CPT 76977 (peripheral ultrasound bone density), 77078 (CT bone mineral density), 77080, and 77081 (DXA studies) are all in play — when the patient has anorexia and the documentation supports the clinical rationale.

On the treatment side, the policy covers nutritional counseling, pharmacotherapy, and psychotherapy. Psychotherapy coverage is broad: CPT 90832–90838 (individual psychotherapy), 90845–90853 (group and other psychotherapy formats), and 90863 (pharmacologic management with psychiatric services) all qualify when selection criteria are met. CBT, family psychotherapy, interpersonal psychotherapy, and psychodynamic psychotherapy are all named as covered modalities.

Pharmacotherapy coverage includes SSRIs and antipsychotics for anorexia, SSRIs (including fluoxetine), tricyclic antidepressants, trazodone, and topiramate for bulimia, and lisdexamfetamine dimesylate (Vyvanse) for binge-eating disorder. Watch the formulary: coverage of specific drugs within each class is subject to formulary restrictions. And for Vyvanse, check the plan documents — some plans exclude coverage of medications used to decrease or increase weight, which could block that reimbursement entirely.

Enteral nutrition is covered for anorexia, but only as a last resort. That's not a vague qualifier — it's a hard documentation requirement. If you're billing enteral nutrition for an anorexic patient and you don't have documentation showing other interventions failed first, expect a claim denial.

Prior authorization requirements are not explicitly detailed within CPB 0511 itself, but eating disorder treatment — especially inpatient, partial hospitalization, and intensive outpatient levels of care — routinely requires prior auth under Aetna's behavioral health benefits. Confirm prior authorization requirements with the patient's specific plan before initiating higher levels of care.

Aetna Eating Disorder Exclusions and Non-Covered Indications 2025

This is where the policy gets detailed — and where your billing team needs to pay close attention.

Aetna considers routine screening for eating disorders in adolescents and adults experimental, investigational, or unproven. That's a blanket exclusion. If your practice conducts population-level or preventive screening using standardized eating disorder screening tools as a standalone service, Aetna will not cover it.

The list of excluded assessment procedures is long. Most of them are biomarker and imaging studies that may seem clinically reasonable but lack sufficient peer-reviewed evidence to meet Aetna's medical necessity standard. Key exclusions include:

On the treatment side, deep brain stimulation (DBS) for eating disorders is explicitly not covered. CPT codes 61863, 61864, 61867, 61868 (neurostimulator implantation), 61880 (revision/removal), 61885, 61886 (pulse generator insertion/replacement), and associated analysis codes 95836, 95970, 95971, 95976, 95983, 95984, and 96020 are all in the "not covered" group for eating disorder indications.

This is not a gray area. Billing DBS codes for an eating disorder indication with Aetna will result in claim denial. The policy is explicit.

Coverage Indications at a Glance

Aetna Eating Disorder Billing Guidelines and Action Items 2025

The effective date is December 20, 2025. Don't wait until claims start denying to act on this.

CPT, HCPCS, and ICD-10 Codes for Eating Disorders Under CPB 0511

Covered CPT Codes (When Selection Criteria Are Met)

Not Covered / Experimental CPT Codes

Note: The full policy data includes 136 CPT codes and 57 HCPCS codes. The tables above reflect all codes provided in the policy summary. Access the complete code set at app.payerpolicy.org/p/aetna/0511.