ICD-9-CM diagnosis code (retired)
E997.9 — Injury due to unspecified form of unconventional warfare
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 E997.9
E997.9 is an ICD-9-CM diagnosis code for injury due to unspecified form of unconventional warfare. 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, Y36.7X1A (War operations involving chemical weapons and other forms of unconventional warfare, civilian, initial encounter). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- Y36.7X1AWar operations involving chemical weapons and other forms of unconventional warfare, civilian, initial encounterapproximate
Common questions about E997.9
What is the ICD-10 code for ICD-9 E997.9?
- The GEMs map E997.9 to ICD-10-CM Y36.7X1A.
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.