ICD-9-CM diagnosis code (retired)
263.1 — Malnutrition of mild degree
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-CM equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 263.1
263.1 is an ICD-9-CM diagnosis code for malnutrition of mild degree. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.
The CMS General Equivalence Mappings translate it to one ICD-10-CM code, E44.1 (Mild protein-calorie malnutrition). The match is exact.
ICD-10-CM equivalents
- E44.1Mild protein-calorie malnutritionexact match
Common questions about 263.1
What is the ICD-10 code for ICD-9 263.1?
- The GEMs map 263.1 to ICD-10-CM E44.1.
GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.