ICD-10 Code K43.1 – Incisional hernia with gangrene (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K43.1 – Incisional hernia with gangrene
What it is
This code identifies an incisional hernia at a prior surgical site that has lost blood supply and developed gangrene. It describes a serious complication requiring prompt clinical attention.
Clinical signs
Clinical features may include a painful, irreducible bulge at the incision site with skin changes or signs of tissue necrosis. Clinical features vary; refer to documentation.
When to use this code
Use K43.1 when the provider documents an incisional hernia and specifically states gangrene. You may also use it when operative, imaging, or exam documentation supports gangrenous hernia content at a prior surgical scar.
If the record only says incisional hernia without gangrene, choose a different hernia code. Check documentation when the note is unclear about ischemia, strangulation, or necrosis.
Do not use for
Do not use this code for uncomplicated incisional hernia or for hernias at non-incisional sites. Do not assign it if gangrene is not documented.
Coding tip
Confirm both the incisional location and the gangrene qualifier in the provider record before coding.