ICD-9-CM diagnosis code (retired)
804.91 — Open fractures involving skull or face with other bones, with intracranial injury of other and unspecified nature, with no loss of consciousness
About ICD-9-CM 804.91
804.91 is an ICD-9-CM diagnosis code for open fractures involving skull or face with other bones, with intracranial injury of other and unspecified nature, with no loss of consciousness. 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 S02.91XB (Unspecified fracture of skull, initial encounter for open fracture), S06.890A (Other specified intracranial injury without loss of consciousness, initial encounter) and S06.9X0A (Unspecified intracranial injury without loss of consciousness, initial encounter). All of these are approximate matches, so review the record to pick the right one. Some mappings are combinations: more than one ICD-10 code is needed to fully express the ICD-9 code.
ICD-10-CM equivalents
- S02.91XBUnspecified fracture of skull, initial encounter for open fractureapproximate · combination (scenario 1, choice 1)
- S06.890AOther specified intracranial injury without loss of consciousness, initial encounterapproximate · combination (scenario 1, choice 2)
- S06.9X0AUnspecified intracranial injury without loss of consciousness, initial encounterapproximate · combination (scenario 1, choice 2)
Common questions about 804.91
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.