ICD10

ICD-10 Code K91.8: Other intraoperative and postprocedural complications and disorders of digestive system

K91.8 is an ICD-10 diagnosis entry used to group records related to Other intraoperative and postprocedural complications and disorders of digestive system. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the digestive system (K00-K95).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the digestive system (K00-K95).

When is it used?

  • May be used when a clinician documents other intraoperative and postprocedural complications and disorders of digestive system in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
  • This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter
11Diseases of the digestive system (K00-K95)
block
K90-K95Other diseases of the digestive system
category
K91Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified
currentK91

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

GastroenterologistGeneral Physician

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
K91.8
Replacement codes
K91.81 — Other intraoperative complications of digestive systemK91.82 — Postprocedural hepatic failureK91.83 — Postprocedural hepatorenal syndromeK91.86 — Retained cholelithiasis following cholecystectomyK91.89 — Other postprocedural complications and disorders of digestive system

Common synonyms

Other intraoperative and postprocedural complications and disorders of digestive system

Frequently asked questions

Code details

CodeK91.8
SystemICD10
Display nameOther intraoperative and postprocedural complications and disorders of digestive system
ChapterDiseases of the digestive system (K00-K95)
BlockOther diseases of the digestive system

Flags

BillableNo
Valid clinical useNo

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code K91.8 for Other intraoperative and postprocedural complications and disorders of digestive system | HealthAssure