K91
⚠ Non-billable (Header)Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified
Diseases of the digestive system (K00-K95)
⚠️ This is a category header code — not billable. Use a more specific child code below.
⚠️ Excludes2
directMay be coded together if both conditions coexist
- • complications of artificial opening of digestive system (K94.-)
- • complications of bariatric procedures (K95.-)
- • gastrojejunal ulcer (K28.-)
- • postprocedural (radiation) retroperitoneal abscess (K68.11)
- • radiation colitis (K52.0)
- • radiation gastroenteritis (K52.0)
- • radiation proctitis (K62.7)
Child Codes (8)
K91.0Vomiting following gastrointestinal surgeryK91.1Postgastric surgery syndromesK91.2Postsurgical malabsorption, not elsewhere classifiedK91.3Postprocedural intestinal obstructionK91.5Postcholecystectomy syndromeK91.6Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a procedureK91.7Accidental puncture and laceration of a digestive system organ or structure during a procedureK91.8Other intraoperative and postprocedural complications and disorders of digestive system
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CodeK91
BillableNo — Header code
CategoryDiseases of the digestive system (K00-K95)
Excludes10 rule(s)
Excludes27 note(s)
Child codes8
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)