ICD-10 Code K40.1 – Bilateral inguinal hernia, with gangrene (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K40.1 – Bilateral inguinal hernia, with gangrene
What it is
K40.1 identifies a bilateral inguinal hernia when both groins are involved and the herniated tissue has gangrene. It indicates compromised blood supply with tissue death, making this a serious complication.
Clinical signs
Clinical features vary; refer to documentation. You may see a painful groin bulge, tenderness, skin changes, or signs of bowel compromise if the hernia is incarcerated and strangulated.
When to use this code
Use K40.1 when the provider documents bilateral inguinal hernia and clearly states gangrene. The record should support both the bilateral location and the gangrenous complication. If the note only says “incarcerated” or “strangulated” without gangrene, check documentation.
Do not use for
Do not use this code for unilateral inguinal hernia, or for bilateral hernia without gangrene. Avoid it when gangrene is not documented or when the hernia type is different.
Coding tip
Confirm laterality and the exact complication in the operative note or assessment before assigning K40.1.