ICD-10 Code K43.0 – Incisional hernia with obstruction, without gangrene (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K43.0 – Incisional hernia with obstruction, without gangrene
What it is
This code identifies an incisional hernia at a prior surgical scar that is blocked, but without tissue death. It tells you the hernia is causing obstruction rather than simple protrusion.
Clinical signs
Typical findings include a painful or tender bulge at an incision site, reduced bowel sounds, nausea, vomiting, or signs of bowel obstruction. Clinical features vary; refer to documentation.
When to use this code
Use K43.0 when the record clearly states an incisional hernia with obstruction and no gangrene. Apply it when the provider documents bowel or other content trapped at the surgical scar and confirms obstruction.
If the note only says incisional hernia, or does not specify obstruction, you need more detail before coding this diagnosis. Check documentation for laterality, complications, or any mention of gangrene.
Do not use for
Do not use this code for an incisional hernia without obstruction, or when gangrene is present. Do not assume obstruction from pain alone; verify the documentation.
Coding tip
Match the code to the exact wording: obstruction must be documented, and gangrene must be absent.