ICDwise
K91 ⚠ Non-billable

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

ICD-10-CM · FY2026 · Diseases of the Digestive System

Code
K91
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Diseases of the Digestive System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Official coding notes

From CMS's ICD-10-CM Tabular List.

Excludes2 — not included here, but may code together
  • 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)

Frequently asked questions

What is ICD-10 code K91?
ICD-10-CM code K91 represents Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Digestive System chapter, effective October 1, 2025 – September 30, 2026.
Is K91 billable?
No. K91 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is K91 in?
K91 belongs to the Diseases of the Digestive System chapter (K00–K95) of ICD-10-CM.

Related codes in the K91 category

K91.0 Vomiting following gastrointestinal surgery Billable K91.1 Postgastric surgery syndromes Billable K91.2 Postsurgical malabsorption, not elsewhere classified Billable K91.3 Postprocedural intestinal obstruction Non-billable K91.5 Postcholecystectomy syndrome Billable K91.6 Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a procedure Non-billable K91.7 Accidental puncture and laceration of a digestive system organ or structure during a procedure Non-billable K91.8 Other intraoperative and postprocedural complications and disorders of digestive system Non-billable

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