ICD-10-CM category
K91: Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified
Codes under K91 (Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| K91.0 | Vomiting following gastrointestinal surgery | ✓ |
| K91.0 | Vomiting following gastrointestinal surgery | ✓ |
| K91.1 | Postgastric surgery syndromes | ✓ |
| K91.1 | Postgastric surgery syndromes | ✓ |
| K91.2 | Postsurgical malabsorption, not elsewhere classified | ✓ |
| K91.2 | Postsurgical malabsorption, not elsewhere classified | ✓ |
| K91.3 | Postprocedural intestinal obstruction | — |
| K91.3 | Postprocedural intestinal obstruction | — |
| K91.5 | Postcholecystectomy syndrome | ✓ |
| K91.5 | Postcholecystectomy syndrome | ✓ |
| K91.6 | Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a procedure | — |
| K91.6 | Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a procedure | — |
| K91.7 | Accidental puncture and laceration of a digestive system organ or structure during a procedure | — |
| K91.7 | Accidental puncture and laceration of a digestive system organ or structure during a procedure | — |
| K91.8 | Other intraoperative and postprocedural complications and disorders of digestive system | — |
| K91.8 | Other intraoperative and postprocedural complications and disorders of digestive system | — |
| K91.30 | Postprocedural intestinal obstruction, unspecified as to partial versus complete | ✓ |
| K91.30 | Postprocedural intestinal obstruction, unspecified as to partial versus complete | ✓ |
| K91.31 | Postprocedural partial intestinal obstruction | ✓ |
| K91.31 | Postprocedural partial intestinal obstruction | ✓ |
| K91.32 | Postprocedural complete intestinal obstruction | ✓ |
| K91.32 | Postprocedural complete intestinal obstruction | ✓ |
| K91.61 | Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a digestive system procedure | ✓ |
| K91.61 | Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a digestive system procedure | ✓ |
| K91.62 | Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating other procedure | ✓ |
| K91.62 | Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating other procedure | ✓ |
| K91.71 | Accidental puncture and laceration of a digestive system organ or structure during a digestive system procedure | ✓ |
| K91.71 | Accidental puncture and laceration of a digestive system organ or structure during a digestive system procedure | ✓ |
| K91.72 | Accidental puncture and laceration of a digestive system organ or structure during other procedure | ✓ |
| K91.72 | Accidental puncture and laceration of a digestive system organ or structure during other procedure | ✓ |
| K91.81 | Other intraoperative complications of digestive system | ✓ |
| K91.81 | Other intraoperative complications of digestive system | ✓ |
| K91.82 | Postprocedural hepatic failure | ✓ |
| K91.82 | Postprocedural hepatic failure | ✓ |
| K91.83 | Postprocedural hepatorenal syndrome | ✓ |
| K91.83 | Postprocedural hepatorenal syndrome | ✓ |
| K91.84 | Postprocedural hemorrhage of a digestive system organ or structure following a procedure | — |
| K91.84 | Postprocedural hemorrhage of a digestive system organ or structure following a procedure | — |
| K91.85 | Complications of intestinal pouch | — |
| K91.85 | Complications of intestinal pouch | — |
| K91.86 | Retained cholelithiasis following cholecystectomy | ✓ |
| K91.86 | Retained cholelithiasis following cholecystectomy | ✓ |
| K91.87 | Postprocedural hematoma and seroma of a digestive system organ or structure following a procedure | — |
| K91.87 | Postprocedural hematoma and seroma of a digestive system organ or structure following a procedure | — |
| K91.89 | Other postprocedural complications and disorders of digestive system | ✓ |
| K91.89 | Other postprocedural complications and disorders of digestive system | ✓ |
| K91.840 | Postprocedural hemorrhage of a digestive system organ or structure following a digestive system procedure | ✓ |
| K91.840 | Postprocedural hemorrhage of a digestive system organ or structure following a digestive system procedure | ✓ |
| K91.841 | Postprocedural hemorrhage of a digestive system organ or structure following other procedure | ✓ |
| K91.841 | Postprocedural hemorrhage of a digestive system organ or structure following other procedure | ✓ |
| K91.850 | Pouchitis | ✓ |
| K91.850 | Pouchitis | ✓ |
| K91.858 | Other complications of intestinal pouch | ✓ |
| K91.858 | Other complications of intestinal pouch | ✓ |
| K91.870 | Postprocedural hematoma of a digestive system organ or structure following a digestive system procedure | ✓ |
| K91.870 | Postprocedural hematoma of a digestive system organ or structure following a digestive system procedure | ✓ |
| K91.871 | Postprocedural hematoma of a digestive system organ or structure following other procedure | ✓ |
| K91.871 | Postprocedural hematoma of a digestive system organ or structure following other procedure | ✓ |
| K91.872 | Postprocedural seroma of a digestive system organ or structure following a digestive system procedure | ✓ |
| K91.872 | Postprocedural seroma of a digestive system organ or structure following a digestive system procedure | ✓ |
| K91.873 | Postprocedural seroma of a digestive system organ or structure following other procedure | ✓ |
| K91.873 | Postprocedural seroma of a digestive system organ or structure following other procedure | ✓ |
Frequently asked questions
What is ICD-10-CM code K91?
K91 is an ICD-10-CM category covering Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified. It contains 62 more specific diagnosis codes, 48 of which are billable.
Is K91 a billable code?
No — K91 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example K91.0 — Vomiting following gastrointestinal surgery). 48 of the 62 codes under K91 are billable.
What codes fall under K91?
K91 includes K91.0, K91.0, K91.1, K91.1, K91.2, plus 57 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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