ICD-9-CM diagnosis code (retired)
777.50 — Necrotizing enterocolitis in newborn, unspecified
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 777.50
777.50 is an ICD-9-CM diagnosis code for necrotizing enterocolitis in newborn, unspecified. 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, P77.9 (Necrotizing enterocolitis in newborn, unspecified). The match is exact.
ICD-10-CM equivalents
- P77.9Necrotizing enterocolitis in newborn, unspecifiedexact match
Common questions about 777.50
What is the ICD-10 code for ICD-9 777.50?
- The GEMs map 777.50 to ICD-10-CM P77.9.
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.