Coding and coverage · ICD-10-CM

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

Not billable (header)Chapter 11

Report one of the more specific codes below.

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Codes under this one

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

Instructional notes

Chapter 11

Excludes2Not included here: the patient may have both; report both when both are present.
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

This code

Excludes2Not included here: the patient may have both; report both when both are present.
  • 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)

Chapter 11: Diseases of the digestive system · K90-K95 Other diseases of the digestive system (K90-K95)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.