ICD-9-CM diagnosis code (retired)
991.8 — Other specified effects of reduced temperature
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 991.8
991.8 is an ICD-9-CM diagnosis code for other specified effects of reduced temperature. 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, T69.8XXA (Other specified effects of reduced temperature, initial encounter). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- T69.8XXAOther specified effects of reduced temperature, initial encounterapproximate
Common questions about 991.8
What is the ICD-10 code for ICD-9 991.8?
- The GEMs map 991.8 to ICD-10-CM T69.8XXA.
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.