ICD-10 Code K43.4 – Parastomal hernia with gangrene (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K43.4 – Parastomal hernia with gangrene
What it is
K43.4 identifies a parastomal hernia that has developed gangrene. This means bowel or tissue near a stoma has herniated through the abdominal wall and lost blood supply.
Clinical signs
Typical findings include a painful, swollen bulge around the stoma, with signs of bowel compromise or necrosis. Clinical features vary; refer to documentation.
When to use this code
Use K43.4 when the record clearly states a parastomal hernia and documents gangrene. It may be supported by operative, imaging, or specialist notes describing ischemic or necrotic herniated tissue. If gangrene is not documented, do not assume it.
Do not use for
Do not use this code for an uncomplicated parastomal hernia, incarceration without gangrene, or a different ventral hernia site. Check documentation if the record only says obstruction or pain.
Coding tip
Code the gangrenous complication only when the provider explicitly links it to the parastomal hernia.