ICD-10 Code K91.8 – Other intraoperative and postprocedural complications and disorders of digestive system (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K91.8 – Other intraoperative and postprocedural complications and disorders of digestive system
What it is
K91.8 identifies other complications or disorders affecting the digestive system that occur during or after a procedure. Use it when the chart describes a postoperative digestive problem not captured by a more specific code.
Clinical signs
Clinical features vary; refer to documentation. Records may note abdominal pain, nausea, vomiting, ileus, obstruction, bleeding, or another digestive complication linked to surgery or an invasive procedure.
When to use this code
Use K91.8 when the provider documents an intraoperative or postprocedural digestive complication and no more specific ICD-10-CM code applies. It is appropriate for complications clearly tied to a procedure, not for routine recovery. Confirm the operative note and progress notes identify the digestive system involvement.
Do not use for
Do not use this code for expected postoperative symptoms without a documented complication, or when a more specific digestive complication code is available. Check documentation if the event is unrelated to a procedure.
Coding tip
Link the complication to the procedure in the record, and code the specific postoperative condition first when documentation supports it.