F50.00

Anorexia nervosa, unspecified

Billable FY2026 2025-10-01 → 2026-09-30

This is the unspecified option. 2 more specific codes sit alongside it. Worth checking whether the documentation supports one of them.

Exclusions 8 never code together

F50code

Excludes1

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

Excludes2

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

F50.0code

Excludes1

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

F01-F99chapter

Excludes2

symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)R00-R99

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 1

F01-F99chapter

Includes

disorders of psychological development

Index entries leading here 1

Anorexia R63.0
- nervosa F50.00

Alongside this code 2 same parent — F50.0

F50.01 Anorexia nervosa, restricting type category F50.02 Anorexia nervosa, binge eating/purging type category

Medications 1

3 Anorexia Nervosa drugs

MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

CMS28HCC153 RX08HCC133

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable: yes
Code set: FY2026
Parent: F50.0
Block: F50-F59
Siblings: 2

Present FY2024–FY2027.