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ICD-9-CM diagnosis code (retired)

E000.9 — Unspecified external cause status

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 E000.9

E000.9 is an ICD-9-CM diagnosis code for unspecified external cause status. 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, Y99.9 (Unspecified external cause status). The match is exact.

ICD-10-CM equivalents

Common questions about E000.9

What is the ICD-10 code for ICD-9 E000.9?

The GEMs map E000.9 to ICD-10-CM Y99.9.

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.