2026 ICD-10-CM Diagnosis Code F50.20Bulimia nervosa, unspecified

ICD-10-CM Codes›F01–F99›F50-F59›F50

ICD-10-CM F50.20
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

F50.20 is a billable ICD-10-CM diagnosis code for bulimia nervosa, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). Coders also document this condition as bulimia nervosa. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Feeding and eating disorders.

Code Identity

ICD-10-CM Code
F50.20
Billable Status
Yes — Valid for Submission
Code Describes
Bulimia nervosa, unspecified
Short Description
Bulimia nervosa, unspecified
Same as the full description in the CMS dataset.
Parent Code
F50.2
Bulimia nervosa

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF50-F59Behavioral syndromes associated with physiological disturbances and physical factors
CategoryF50Eating disorders
This CodeF50.20Bulimia nervosa, unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bulimia nervosa
  • Bulimia nervosa, nonpurging type
  • Bulimia nervosa, purging type
  • Finding of quantity of eating
  • Overeating
  • Pattern of overeating and vomiting
  • Self-induced purging
  • Self-induced purging to lose weight
  • Self-induced vomiting to lose weight

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MBD010
Feeding and eating disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Bulimia Nervosa

    an eating disorder that is characterized by a cycle of binge eating (bulimia or bingeing) followed by inappropriate acts (purging) to avert weight gain. purging methods often include self-induced vomiting, use of laxatives or diuretics, excessive exercise, and fasting.

Code History & ChangesHistory

Replacement F50.20 replaces the following previously assigned code(s):

  • F50.2 - Bulimia nervosa
FY 2025AddedAdded to the ICD-10-CM code setEffective October 1, 2024.
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About F50.20Overview

Is F50.20 (Bulimia nervosa) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report bulimia nervosa, unspecified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.