F50.0 – Anorexia nervosa

ICD-10-CM 2027 diagnosis code · Behavioral syndromes associated with physiological disturbances and physical factors

Non-billable header

ICD-10-CM code F50.0

Code: F50.0 (claims format: F500)
Description: Anorexia nervosa
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 5. Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
Block: F50-F59 Behavioral syndromes associated with physiological disturbances and physical factors
Parent codes: F50

Billable codes under F50.0

F50.0 is a header code and cannot be used on claims. Choose the most specific code:

F50.00 – Anorexia nervosa, unspecifiedBillable
F50.01 – Anorexia nervosa, restricting typeHeader (more codes below)
F50.02 – Anorexia nervosa, binge eating/purging typeHeader (more codes below)

Notes for F50.0

Excludes1 (not coded here):

loss of appetite (R63.0)
psychogenic loss of appetite (F50.89)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

F50 – Eating disorders

Excludes1 (not coded here):

anorexia NOS (R63.0)
feeding problems of newborn (P92.-)
polyphagia (R63.2)

Excludes2 (not included here):

feeding difficulties (R63.3-)
feeding disorder in infancy or childhood (F98.2-)

Related codes in F50

F50.2 – Bulimia nervosaHeader
F50.8 – Other eating disordersHeader
F50.9 – Eating disorder, unspecifiedBillable

Frequently asked questions

What is ICD-10 code F50.0?

F50.0 is the ICD-10-CM code for anorexia nervosa, in the block F50-F59 (Behavioral syndromes associated with physiological disturbances and physical factors).

Is F50.0 a billable code?

No. F50.0 is a header code with more specific child codes; report one of the billable codes listed above.

What category does F50.0 belong to?

It belongs to category F50 – Eating disorders.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.