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ICD-10-CM 2027 diagnosis code

K91.8Other intraoperative and postprocedural complications and disorders of digestive system

Not billable — use a more specific code

K91.8 is a header code, so it can't be reported by itself. Choose one of the 8 more specific codes beneath it.Short description: Oth intraop and postproc comp and disorders of dgstv sys

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About K91.8

K91.8 is the ICD-10-CM diagnosis code for other intraoperative and postprocedural complications and disorders of digestive system. It belongs to category K91 (intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified), block K90-K95 (other diseases of the digestive system) and chapter 11 (diseases of the digestive system). It is a header code, so it can't be reported by itself; one of its 8 subcodes must be used instead.

Within K91, choose K91.8 (Other intraoperative and postprocedural complications and disorders of digestive system) only when documentation doesn't support a more specific option: vomiting following gastrointestinal surgery (K91.0), Postgastric surgery syndromes (K91.1), postsurgical malabsorption, not elsewhere classified (K91.2), postprocedural intestinal obstruction (K91.3), Postcholecystectomy syndrome (K91.5), intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a procedure (K91.6) and accidental puncture and laceration of a digestive system organ or structure during a procedure (K91.7).

To report this condition, pick the subcode that matches the documentation: K91.81 (system), K91.82 (failure), K91.83 (syndrome), K91.84 (procedure), K91.85 (pouch), K91.86 (cholecystectomy), K91.87 (procedure) and K91.89 (system).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under K91.8

Notes that apply from higher levels

Instructions written at a parent level also apply to K91.8.

› From K91 Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified
Excludes2
  • 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)

Broader instructions also apply from Chapter 11: Diseases of the digestive system.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about K91.8

Is K91.8 billable?

No. K91.8 is a header code. Report one of its more specific subcodes instead.