2026 ICD-10-CM Diagnosis Code F50.9
Eating disorder, unspecified
About F50.9
Code
F50.9
Description
Eating disorder, unspecified
Billable
Yes — billable on its own
Parent code
F50 (Eating disorders)
Category
F50-F59 — Behavioral syndromes associated with physiological disturbances and physical factors
Set
ICD-10-CM 2026
Clinical context
Inherited from F50 (Eating disorders)
F50 covers anorexia nervosa (F50.0), bulimia nervosa (F50.2), binge-eating disorder (F50.81), and avoidant/restrictive food intake disorder (F50.82). Document subtype, weight history, and current severity for both clinical and reimbursement clarity.
Code details
Code attributes
- Non-billable/Non-specific code
Coding rules
- Specify the leaf code — the parent code (e.g. F32) is a navigational header; billing requires a leaf code (F32.0, F32.1, etc.) that matches the documented presentation.
- Document onset, course, and severity (mild / moderate / severe) plus functional impact. Payers use this combination when adjudicating medical necessity.
- Attach a validated instrument score (PHQ-9, GAD-7, PCL-5, or equivalent) at intake and at follow-up where applicable. Objective measures support code selection and continued authorization.
- Review at every visit and update if presentation changes — including remission and partial remission states.
Codes
8 codes in F50Sources
- Centers for Medicare & Medicaid Services — 2026 ICD-10-CM
- AAPC — ICD-10-CM Code Lookup
- CDC — ICD-10-CM Official Guidelines for Coding and Reporting
This reference is provided for billing and documentation guidance only. It is not medical advice. For clinical decision-making, consult the current CMS ICD-10-CM Official Guidelines for Coding and Reporting, and verify code applicability against the patient's documented clinical findings.
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