ICD-10 Code K40.41 – Unilateral inguinal hernia, with gangrene, recurrent (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K40.41 – Unilateral inguinal hernia, with gangrene, recurrent
What it is
This code identifies a recurrent inguinal hernia on one side with gangrene, meaning the herniated tissue has lost blood supply and become necrotic. Use it when documentation clearly states both recurrence and gangrene.
Clinical signs
Findings may include a groin bulge, pain, tenderness, and signs of bowel compromise or tissue death. Clinical features vary; refer to documentation for evidence of gangrene and recurrent hernia status.
When to use this code
Use K40.41 when the record documents a unilateral inguinal hernia that has returned after prior repair and is complicated by gangrene. Apply it only when laterality and recurrence are both specified. If the note does not confirm gangrene, check documentation before coding.
Do not use for
Do not use this code for an uncomplicated inguinal hernia, a nonrecurrent hernia, or a hernia without gangrene. Check documentation if the side, recurrence, or ischemic complication is unclear.
Coding tip
Verify laterality, recurrence, and gangrene in the operative note, imaging report, or assessment before assigning K40.41.