ICD-9-CM diagnosis code (retired)
861.00 — Unspecified injury of heart without mention of open wound into thorax
About ICD-9-CM 861.00
861.00 is an ICD-9-CM diagnosis code for unspecified injury of heart without mention of open wound into thorax. 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 S26.10XA (Unspecified injury of heart without hemopericardium, initial encounter), S26.90XA (Unspecified injury of heart, unspecified with or without hemopericardium, initial encounter) and S26.99XA (Other injury of heart, unspecified with or without hemopericardium, initial encounter). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
- S26.10XAUnspecified injury of heart without hemopericardium, initial encounterapproximate
- S26.90XAUnspecified injury of heart, unspecified with or without hemopericardium, initial encounterapproximate
- S26.99XAOther injury of heart, unspecified with or without hemopericardium, initial encounterapproximate
Common questions about 861.00
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.