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ICD-9-CM diagnosis code (retired)

851.29 — Cortex (cerebral) laceration without mention of open intracranial wound, with concussion, unspecified

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 851.29

851.29 is an ICD-9-CM diagnosis code for cortex (cerebral) laceration without mention of open intracranial wound, with concussion, unspecified. 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 2 ICD-10-CM codes, such as S06.330A (Contusion and laceration of cerebrum, unspecified, without loss of consciousness, initial encounter) and S06.339A (Contusion and laceration of cerebrum, unspecified, with loss of consciousness of unspecified duration, initial encounter). All of these are approximate matches, so review the record to pick the right one.

ICD-10-CM equivalents

Common questions about 851.29

What is the ICD-10 code for ICD-9 851.29?

The GEMs map 851.29 to ICD-10-CM S06.330A and S06.339A.

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.