Acute pancreatitis (K85) ICD-10-CM
The K85 code range covers acute pancreatitis with 25 ICD-10-CM diagnosis codes. 18 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- acute (recurrent) pancreatitis
- subacute pancreatitis
Codes in the K85 Range 25 codes · 18 billable
- K85 Acute pancreatitisNon-billable
- K85.0 Idiopathic acute pancreatitisNon-billable
- K85.00 Idiopathic acute pancreatitis without necrosis or infection
- K85.01 Idiopathic acute pancreatitis with uninfected necrosis
- K85.02 Idiopathic acute pancreatitis with infected necrosis
- K85.1 Biliary acute pancreatitisNon-billable
- K85.10 Biliary acute pancreatitis without necrosis or infection
- K85.11 Biliary acute pancreatitis with uninfected necrosis
- K85.12 Biliary acute pancreatitis with infected necrosis
- K85.2 Alcohol induced acute pancreatitisNon-billable
- K85.20 Alcohol induced acute pancreatitis without necrosis or infection
- K85.21 Alcohol induced acute pancreatitis with uninfected necrosis
- K85.22 Alcohol induced acute pancreatitis with infected necrosis
- K85.3 Drug induced acute pancreatitisNon-billable
- K85.30 Drug induced acute pancreatitis without necrosis or infection
- K85.31 Drug induced acute pancreatitis with uninfected necrosis
- K85.32 Drug induced acute pancreatitis with infected necrosis
- K85.8 Other acute pancreatitisNon-billable
- K85.80 Other acute pancreatitis without necrosis or infection
- K85.81 Other acute pancreatitis with uninfected necrosis
- K85.82 Other acute pancreatitis with infected necrosis
- K85.9 Acute pancreatitis, unspecifiedNon-billable
- K85.90 Acute pancreatitis without necrosis or infection, unspecified
- K85.91 Acute pancreatitis with uninfected necrosis, unspecified
- K85.92 Acute pancreatitis with infected necrosis, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the K85 range.
Acute Pancreatitis
An acute inflammatory process that leads to necrosis of the pancreatic parenchyma. Signs and symptoms include severe abdominal pain, nausea, vomiting, diarrhea, fever, and shock. Causes include alcohol consumption, presence of gallstones, trauma, and drugs.
Pancreatitis
INFLAMMATION of the PANCREAS. Pancreatitis is classified as acute unless there are computed tomographic or endoscopic retrograde cholangiopancreatographic findings of CHRONIC PANCREATITIS (International Symposium on Acute Pancreatitis, Atlanta, 1992). The two most common forms of acute pancreatitis are ALCOHOLIC PANCREATITIS and gallstone pancreatitis.
About the K85 Code Range
Acute pancreatitis is sudden inflammation of the pancreas. Its codes distinguish the type of pancreatitis, then whether tissue death, called necrosis, is present and infected.
K85.0 identifies an unknown cause; K85.1 identifies a biliary, or bile-related, cause. K85.2 and K85.3 identify alcohol- and drug-induced cases. K85.8 identifies other acute pancreatitis, and K85.9 identifies an unspecified type.
Each group then separates cases without necrosis or infection, with uninfected necrosis, and with infected necrosis.
Questions About This Page
How many billable codes are in the K85 range?
Of the 25 codes in this range, 18 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the K85 range classify?
The range classifies acute pancreatitis. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
