ICD-10-CM 2027 diagnosis code
F50.0Anorexia nervosa
F50.0 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About F50.0
F50.0 is the ICD-10-CM diagnosis code for Anorexia nervosa. It belongs to category F50 (eating disorders), block F50-F59 (behavioral syndromes associated with physiological disturbances and physical factors) and chapter 5 (mental, Behavioral and Neurodevelopmental disorders). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.
Within F50 (eating disorders), F50.0 is specifically for Anorexia nervosa. Related codes cover Bulimia nervosa (F50.2), other eating disorders (F50.8) and eating disorder, unspecified (F50.9).
To report this condition, pick the subcode that matches the documentation: F50.00 (unspecified), F50.01 (restricting type) and F50.02 (binge eating/purging type).
Don't report F50.0 together with the conditions in its Excludes1 note: loss of appetite (R63.0) and psychogenic loss of appetite (F50.89).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under F50.0
- F50.00Anorexia nervosa, unspecifiedBillable
- F50.01Anorexia nervosa, restricting type
- F50.010Anorexia nervosa, restricting type, mildBillable
- F50.011Anorexia nervosa, restricting type, moderateBillable
- F50.012Anorexia nervosa, restricting type, severeBillable
- F50.013Anorexia nervosa, restricting type, extremeBillable
- F50.014Anorexia nervosa, restricting type, in remissionBillable
- F50.019Anorexia nervosa, restricting type, unspecifiedBillable
- F50.02Anorexia nervosa, binge eating/purging type
- F50.020Anorexia nervosa, binge eating/purging type, mildBillable
- F50.021Anorexia nervosa, binge eating/purging type, moderateBillable
- F50.022Anorexia nervosa, binge eating/purging type, severeBillable
- F50.023Anorexia nervosa, binge eating/purging type, extremeBillable
- F50.024Anorexia nervosa, binge eating/purging type, in remissionBillable
- F50.029Anorexia nervosa, binge eating/purging type, unspecifiedBillable
Coding notes
Notes that apply from higher levels
Instructions written at a parent level also apply to F50.0.
› From F50 Eating disorders
Broader instructions also apply from Chapter 5: Mental, Behavioral and Neurodevelopmental disorders.
Codes whose notes reference F50.0
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about F50.0
Is F50.0 billable?
- No. F50.0 is a header code. Report one of its more specific subcodes instead.