ICD-10 Code K91.3 – Postprocedural intestinal obstruction (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K91.3 – Postprocedural intestinal obstruction
What it is
K91.3 identifies an intestinal obstruction that occurs after a procedure or surgery. Use it when the blockage is documented as a postoperative complication rather than a preexisting bowel condition.
Clinical signs
Clinical features may include abdominal distension, pain, vomiting, and reduced or absent bowel function. Imaging or operative findings usually support the diagnosis; clinical features vary, so refer to documentation.
When to use this code
Use K91.3 when the provider links the bowel obstruction to a prior procedure, such as an adhesion, kinking, or other postoperative complication. Code it only when the record clearly states the obstruction is postprocedural. If the cause is unclear, check documentation before assigning the code.
Do not use for
Do not use this code for intestinal obstruction unrelated to a procedure or for routine postoperative ileus unless the provider documents obstruction. Do not code it when the record only suggests delayed bowel function.
Coding tip
Look for explicit provider wording that connects the obstruction to surgery; if that link is missing, check documentation.