K91 Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified is K91 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
K90-K95: Other diseases of the digestive system (K90-K95)
Category K91
32 codes (24 billable)
FY2026 Status
Stable since FY2024
Excludes2
Not included here. These conditions are coded elsewhere but may be coded together if applicable.
  • 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)

Official Coding Guidelines

Chapter 11 reserved for future expansion

11. Chapter 11: Diseases of the Digestive System (K00-K95) Reserved for future guideline expansion

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.11

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Cite This Page

Reference K91 with the canonical source and edition:

K91 — Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/K91

Canonical URL: https://icd10codingpro.com/codes/K91

Related Codes

More Specific Codes

K91.0 Vomiting following gastrointestinal surgery K91.1 Postgastric surgery syndromes K91.2 Postsurgical malabsorption, not elsewhere classified K91.3 Postprocedural intestinal obstruction K91.5 Postcholecystectomy syndrome 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 K91.8 Other intraoperative and postprocedural complications and disorders of digestive system

All Codes in K91

Every most-specific code under K91 Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified (24 codes):

Show the complete K91 code list
K91.0 Vomiting following gastrointestinal surgery K91.1 Postgastric surgery syndromes K91.2 Postsurgical malabsorption, not elsewhere classified K91.30 Postprocedural intestinal obstruction, unspecified as to partial versus complete K91.31 Postprocedural partial intestinal obstruction K91.32 Postprocedural complete intestinal obstruction K91.5 Postcholecystectomy syndrome 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 K91.71 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 K91.81 Other intraoperative complications of digestive system K91.82 Postprocedural hepatic failure K91.83 Postprocedural hepatorenal syndrome 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 K91.850 Pouchitis K91.858 Other complications of intestinal pouch K91.86 Retained cholelithiasis following cholecystectomy 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 K91.872 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 K91.89 Other postprocedural complications and disorders of digestive system
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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