ICD-10 Code K91.81 – Other intraoperative complications of digestive system (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K91.81 – Other intraoperative complications of digestive system
What it is
K91.81 identifies an unexpected complication that occurs during surgery on the digestive system and is not classified elsewhere. Use it when the operative note documents an intraoperative digestive system complication, but a more specific code is unavailable.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include an intraoperative injury, perforation, bleeding, or other procedure-related problem involving a digestive organ or structure.
When to use this code
Use this code when the surgeon documents a digestive system complication that happened during the operation and the record does not support a more specific complication code. It may apply to complications recognized in the operating room or clearly linked to the procedure itself. Check documentation for the exact organ, event, and timing.
Do not use for
Do not use this code for postoperative complications that occur after surgery, or for complications outside the digestive system. If the note gives a specific intraoperative complication code, use that instead.
Coding tip
Look for the operative report’s exact wording and code the most specific complication documented.