All ICD10 Codes

K85

Non-Billable
ChapterK00–K95
Rankcategory
Official Description

Acute pancreatitis

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 11: Diseases of the Digestive System (K00-K95).

CH11 Parent Instructions

Excludes2(Not included here)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Instructional Notes

Includes
  • acute (recurrent) pancreatitis
  • subacute pancreatitis

Clinical Hierarchy

CH11Diseases of the digestive system (K00-K95)
K80-K87Disorders of gallbladder, biliary tract and pancreas (K80-K87)
K85Acute pancreatitis
K85.0Idiopathic acute pancreatitis
K85.1Biliary acute pancreatitis
K85.2Alcohol induced acute pancreatitis
K85.3Drug induced acute pancreatitis
K85.8Other acute pancreatitis
K85.9Acute pancreatitis, unspecified

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to K85:

chapterCH11
Diseases of the digestive system (K00-K95)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to K85. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

25 raw paths
Fitz's syndrome (acute hemorrhagic pancreatitis)1 unique routes
Direct index entry→K85
Infection, infected, infective (opportunistic)1 unique routes
pancreas (acute)
specified NEC→K85
Pancreatitis (annular) (apoplectic) (calcareous) (edematous) (hemorrhagic) (malignant) (subacute) (suppurative)23 unique routes
Direct index entry→K85
acute (without necrosis or infection)→K85(21 variants)
alcohol induced (without necrosis or infection)→K85(3 variants)
with necrosis (uninfected)→K85(2 variants)
infected→K85
biliary (without necrosis or infection)→K85(3 variants)
with necrosis (uninfected)→K85(2 variants)
infected→K85
drug induced (without necrosis or infection)→K85(3 variants)
with necrosis (uninfected)→K85(2 variants)
infected→K85
gallstone (without necrosis or infection)→K85(3 variants)
with necrosis (uninfected)→K85(2 variants)
infected→K85
idiopathic (without necrosis or infection)→K85(3 variants)
with necrosis (uninfected)→K85(2 variants)
infected→K85
specified NEC (without necrosis or infection)→K85(3 variants)
with necrosis (uninfected)→K85(2 variants)
infected→K85
with necrosis (uninfected)→K85(2 variants)
infected→K85
gallstone (without necrosis or infection)→K85

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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