F50.013

ICD-10Billable

Anorexia nervosa, restricting type, extreme

Official ICD-10-CM descriptor (FY2026)

Anorexia nervosa, restricting type, extreme

F50.013 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

Anorexia nervosa, restricting type, with a body mass index of less than 15.0 kg/m2

Related codes in F5001

Where this code sits

Chapter: 5. Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
Block: Behavioral syndromes associated with physiological disturbances and physical factors (F50-F59)
Parent code: F50.01

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.