ICD10
ICD-10 Code K91.8: Other intraoperative and postprocedural complications and disorders of digestive system
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
Related codes
Sibling codes
K91.0Vomiting following gastrointestinal surgerybillableK91.1Postgastric surgery syndromesbillableK91.2Postsurgical malabsorption, not elsewhere classifiedbillableK91.3Postprocedural intestinal obstructionK91.5Postcholecystectomy syndromebillableK91.6Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a procedureK91.7Accidental puncture and laceration of a digestive system organ or structure during a procedure
Mapped diagnoses and classifications
SNOMED_CT 235938004high
Anastomotic biliary stricture
Source: SNOMED International ICD-10 map
SNOMED_CT 236115009high
Anastomotic necrosis of large intestine
Source: SNOMED International ICD-10 map
SNOMED_CT 236114008high
Anastomotic necrosis of small intestine
Source: SNOMED International ICD-10 map
SNOMED_CT 236109009high
Anastomotic stricture of large intestine
Source: SNOMED International ICD-10 map
SNOMED_CT 236108001high
Anastomotic stricture of small intestine
Source: SNOMED International ICD-10 map
SNOMED_CT 235939007high
Biliary anastomotic breakdown
Source: SNOMED International ICD-10 map
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
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.