MCMCB Pro
F50.20

F50.20Bulimia nervosa, unspecified

Billable / specific codeICD-10-CM

F50.20 is a billable, specific ICD-10-CM code for bulimia nervosa, unspecified. It is valid for submission on a claim.

Risk adjustment

F50.20 risk-adjusts. Under the CMS-HCC V28 model it maps to these categories:

  • HCC 153 Personality Disorders; Anorexia/Bulimia Nervosa0.396 RAF
  • HCC 153 Personality Disorders; Anorexia/Bulimia Nervosa0.396 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.

Medicare coverage

F50.20 is named in 8 Medicare coverage policies 7 listing it as supporting medical necessity, and 1 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
  • A56614Billing and Coding: Psychiatric Inpatient Hospitalization
  • A56685Billing and Coding: Partial Hospitalization Programs
  • A56850Billing and Coding: Psychiatric Partial Hospitalization Programs

Related codes at this level

Codes that share F50.2. If F50.20 is not quite right, the correct code is usually one of these.

Questions about F50.20

Is F50.20 a billable ICD-10-CM code?
Yes. F50.20 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does F50.20 sit in the tabular list?
Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Behavioral syndromes associated with physiological disturbances and physical factors (F50-F59).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.