ICD-10 Code K43.3 – Parastomal hernia with obstruction, without gangrene (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K43.3 – Parastomal hernia with obstruction, without gangrene
What it is
K43.3 identifies a parastomal hernia that has become obstructed but has no gangrene. This means bowel or other tissue is bulging next to a stoma and passage is blocked, without documented tissue death.
Clinical signs
Typical findings include a visible or palpable bulge around the stoma, pain, swelling, and reduced stoma output. Clinical features vary; refer to documentation for evidence of obstruction and absence of gangrene.
When to use this code
Use K43.3 when the provider documents a parastomal hernia with obstruction and specifically states there is no gangrene. Code it when the record describes a stoma-related hernia causing bowel blockage, even if the note uses terms such as incarcerated or obstructed. Check documentation if the anatomy or complication is unclear.
Do not use for
Do not use this code for a parastomal hernia without obstruction, or when gangrene is documented. If the hernia is at another site or the record does not confirm obstruction, choose a different code or check documentation.
Coding tip
Always verify both parts of the description: parastomal location and obstruction, with no gangrene documented.