ICD-9-CM diagnosis code (retired)
994.9 — Other effects of external causes
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 994.9
994.9 is an ICD-9-CM diagnosis code for other effects of external causes. 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 3 ICD-10-CM codes, such as T73.8XXA (Other effects of deprivation, initial encounter), T73.9XXA (Effect of deprivation, unspecified, initial encounter) and T75.89XA (Other specified effects of external causes, initial encounter). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
Common questions about 994.9
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.