ICD-10-CM category
K91 Postprocedural disorders of digestive system, not elsewhere classified
K91 is a category, not a billable code. Report one of the 24 complete codes below.
Codes in K91
- K91.0Vomiting following gastrointestinal surgery
- K91.1Postgastric surgery syndromes
- K91.2Postsurgical malabsorption, not elsewhere classified
- K91.30Postprocedural intestinal obstruction, unspecified as to partial versus complete
- K91.31Postprocedural partial intestinal obstruction
- K91.32Postprocedural complete intestinal obstruction
- K91.5Postcholecystectomy syndrome
- K91.61Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a digestive system procedure
- K91.62Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating other procedure
- K91.71Accidental puncture and laceration of a digestive system organ or structure during a digestive system procedure
- K91.72Accidental puncture and laceration of a digestive system organ or structure during other procedure
- K91.81Other intraoperative complications of digestive system
- K91.82Postprocedural hepatic failure
- K91.83Postprocedural hepatorenal syndrome
- K91.840Postprocedural hemorrhage of a digestive system organ or structure following a digestive system procedure
- K91.841Postprocedural hemorrhage of a digestive system organ or structure following other procedure
- K91.850Pouchitis
- K91.858Other complications of intestinal pouch
- K91.86Retained cholelithiasis following cholecystectomy
- K91.870Postprocedural hematoma of a digestive system organ or structure following a digestive system procedure
- K91.871Postprocedural hematoma of a digestive system organ or structure following other procedure
- K91.872Postprocedural seroma of a digestive system organ or structure following a digestive system procedure
- K91.873Postprocedural seroma of a digestive system organ or structure following other procedure
- K91.89Other postprocedural complications and disorders of digestive system
Outside the US? K91 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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