ICD10
ICD-10 Code K85.1: Biliary acute pancreatitis
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 biliary acute pancreatitis 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
K80-K87Disorders of gallbladder, biliary tract and pancreas
category
K85Acute pancreatitis
currentK85
Official coding notes
Inclusion terms
- Gallstone pancreatitis
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
Mapped diagnoses and classifications
SNOMED_CT 96081000119101high
Acute pancreatitis due to common bile duct calculus
Source: SNOMED International ICD-10 map
SNOMED_CT 235941008high
Gallstone acute pancreatitis
Source: SNOMED International ICD-10 map
SNOMED_CT 95563007high
Gallstone pancreatitis
Source: SNOMED International ICD-10 map
SNOMED_CT 435317721000119100high
Infected necrosis of pancreas due to acute biliary pancreatitis
Source: SNOMED International ICD-10 map
SNOMED_CT 679858931000119107high
Aseptic necrosis of pancreas due to acute biliary pancreatitis
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
K85.1
Replacement codes
K85.10 — Biliary acute pancreatitis without necrosis or infectionK85.11 — Biliary acute pancreatitis with uninfected necrosisK85.12 — Biliary acute pancreatitis with infected necrosis
Common synonyms
Biliary acute pancreatitis
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.