ICD-10 Code K91.89 – Other postprocedural complications and disorders of digestive system (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K91.89 – Other postprocedural complications and disorders of digestive system
What it is
K91.89 identifies other digestive system problems that arise after a procedure and are not classified elsewhere. Use it when the postoperative complication involves the digestive tract but a more specific code is unavailable.
Clinical signs
Clinical features vary; refer to documentation. Reports may describe postoperative abdominal pain, altered bowel function, obstruction-like symptoms, leakage, or other digestive complications linked to a recent procedure.
When to use this code
Use K91.89 when the provider documents a postoperative complication or disorder affecting the digestive system and no more specific code fits. It is appropriate for complications clearly tied to a prior procedure, such as postoperative digestive dysfunction or other stated digestive sequelae. Code the documented condition, not the surgery itself.
Do not use for
Do not use this code for routine postoperative pain, expected recovery findings, or complications with a more specific ICD-10-CM code. Check documentation if the issue is unrelated to the digestive system or not clearly postprocedural.
Coding tip
Always link the complication to the prior procedure in the record before assigning K91.89.