ICD-9-CM Diagnosis Code 801.90
Diagnosis Code: 801.90 (Raw: 80190)
Description: Open fracture of base of skull with intracranial injury of other and unspecified nature, unspecified state of consciousness
Classification: International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM)
Fiscal Year: 2026 Reference
CMS Section 111 Status: Valid for reporting.
Overview & Historical Usage
ICD-9-CM code 801.90 is designated for Open fracture of base of skull with intracranial injury of other and unspecified nature, unspecified state of consciousness. While superseded by ICD-10 for current healthcare encounters, it remains a recognized reference code for CMS Section 111 reporting, legacy claims adjudication, and historical clinical data analysis.
