ICD-9-CM diagnosis code (retired)
E999.1 — Late effect of injury due to terrorism
About ICD-9-CM E999.1
E999.1 is an ICD-9-CM diagnosis code for late effect of injury due to terrorism. 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 10 ICD-10-CM codes, such as Y38.0X2S (Terrorism involving explosion of marine weapons, civilian injured, sequela), Y38.1X2S (Terrorism involving destruction of aircraft, civilian injured, sequela) and Y38.2X2S (Terrorism involving other explosions and fragments, civilian injured, sequela). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
- Y38.0X2STerrorism involving explosion of marine weapons, civilian injured, sequelaapproximate
- Y38.1X2STerrorism involving destruction of aircraft, civilian injured, sequelaapproximate
- Y38.2X2STerrorism involving other explosions and fragments, civilian injured, sequelaapproximate
- Y38.3X2STerrorism involving fires, conflagration and hot substances, civilian injured, sequelaapproximate
- Y38.4X2STerrorism involving firearms, civilian injured, sequelaapproximate
- Y38.5X2STerrorism involving nuclear weapons, civilian injured, sequelaapproximate
- Y38.6X2STerrorism involving biological weapons, civilian injured, sequelaapproximate
- Y38.7X2STerrorism involving chemical weapons, civilian injured, sequelaapproximate
- Y38.892STerrorism involving other means, civilian injured, sequelaapproximate
- Y38.9X2STerrorism, secondary effects, civilian injured, sequelaapproximate
Common questions about E999.1
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.