2026 ICD-10-CM Diagnosis Code K85Acute pancreatitis

ICD-10-CM Codes›K00–K95›K80-K87›K85

ICD-10-CM K85
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K85 is a non-billable ICD-10-CM category code for acute pancreatitis, so it cannot be submitted on claims. Use a more specific code from this category instead, such as K85.00, K85.01, K85.02, and K85.10.

Code Identity

ICD-10-CM Code
K85
Billable Status
No — Non-Billable Category
Code Describes
Acute pancreatitis
Chapter
K80-K87
Disorders of gallbladder, biliary tract and pancreas

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK80-K87Disorders of gallbladder, biliary tract and pancreas
CategoryK85Acute pancreatitis
This CodeK85Acute pancreatitis

Specific Coding for Acute pancreatitisOverview

Non-specific codes like K85 require more characters. Use one of these billable codes instead:

  • K85.0 for Idiopathic acute pancreatitis

  • Use K85.00 for Idiopathic acute pancreatitis without necrosis or infection

  • Use K85.01 for Idiopathic acute pancreatitis with uninfected necrosis

  • Use K85.02 for Idiopathic acute pancreatitis with infected necrosis

  • K85.1 for Biliary acute pancreatitis

  • Use K85.10 for Biliary acute pancreatitis without necrosis or infection

  • Use K85.11 for Biliary acute pancreatitis with uninfected necrosis

  • Use K85.12 for Biliary acute pancreatitis with infected necrosis

  • K85.2 for Alcohol induced acute pancreatitis

  • Use K85.20 for Alcohol induced acute pancreatitis without necrosis or infection

  • Use K85.21 for Alcohol induced acute pancreatitis with uninfected necrosis

  • Use K85.22 for Alcohol induced acute pancreatitis with infected necrosis

  • K85.3 for Drug induced acute pancreatitis

  • Use K85.30 for Drug induced acute pancreatitis without necrosis or infection

  • Use K85.31 for Drug induced acute pancreatitis with uninfected necrosis

  • Use K85.32 for Drug induced acute pancreatitis with infected necrosis

  • K85.8 for Other acute pancreatitis

  • Use K85.80 for Other acute pancreatitis without necrosis or infection

  • Use K85.81 for Other acute pancreatitis with uninfected necrosis

  • Use K85.82 for Other acute pancreatitis with infected necrosis

  • K85.9 for Acute pancreatitis, unspecified

  • Use K85.90 for Acute pancreatitis without necrosis or infection, unspecified

  • Use K85.91 for Acute pancreatitis with uninfected necrosis, unspecified

  • Use K85.92 for Acute pancreatitis with infected necrosis, unspecified

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Includes

  • acute (recurrent) pancreatitis
  • subacute pancreatitis

Patient EducationClinical

Pancreatitis

The pancreas is a large gland behind the stomach and close to the first part of the small intestine. It secretes digestive juices into the small intestine through a tube called the pancreatic duct. The pancreas also releases the hormones insulin and glucagon into the bloodstream.

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Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About K85Overview

Is K85 (Acute pancreatitis) a billable code?

No. This is a category header that groups the codes for acute pancreatitis, and headers cannot be submitted on claims. Claims for acute pancreatitis need a more specific code from this category, such as K85.00, K85.01, and K85.02.