ICD-10 Code K41.40 – Unilateral femoral hernia, with gangrene, not specified as recurrent (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K41.40 – Unilateral femoral hernia, with gangrene, not specified as recurrent
What it is
K41.40 identifies a one-sided femoral hernia complicated by gangrene, with no documentation that it is recurrent. The code tells you the hernia is in the femoral canal and that tissue compromise is present.
Clinical signs
Typical findings include a groin bulge below the inguinal ligament, pain, and signs of strangulation or tissue necrosis. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents a unilateral femoral hernia with gangrene and does not state that it is recurrent. It may apply in operative, emergency, or inpatient notes where gangrenous hernia is clearly identified. Check documentation for laterality and recurrence status.
Do not use for
Do not use it for femoral hernia without gangrene, bilateral disease, or recurrent hernia when recurrence is documented. Do not assume gangrene; check documentation.
Coding tip
Confirm both laterality and the absence of recurrence before assigning K41.40.