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ICD-9-CM diagnosis code (retired)

410.11 — Acute myocardial infarction of other anterior wall, initial episode of care

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 410.11

410.11 is an ICD-9-CM diagnosis code for acute myocardial infarction of other anterior wall, initial episode of care. 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, I21.09 (ST elevation (STEMI) myocardial infarction involving other coronary artery of anterior wall). The match is approximate, so confirm it against the record.

ICD-10-CM equivalents

Common questions about 410.11

What is the ICD-10 code for ICD-9 410.11?

The GEMs map 410.11 to ICD-10-CM I21.09.

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.