ICD-9-CM Diagnosis Code 551.00
Diagnosis Code: 551.00 (Raw: 55100)
Description: Femoral hernia with gangrene, unilateral or unspecified (not specified as recurrent)
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 551.00 is designated for Femoral hernia with gangrene, unilateral or unspecified (not specified as recurrent). While superseded by ICD-10 for current healthcare encounters, it remains a recognized reference code for CMS Section 111 reporting, legacy claims adjudication, and historical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.
