K85.0

Idiopathic acute pancreatitis

FY2027Chapter 11: Diseases of the digestive system/K80–K87 Disorders of gallbladder, biliary tract and pancreas

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

K85.0 is a non-billable ICD-10-CM code header for idiopathic acute pancreatitis. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are K85.00 Idiopathic acute pancreatitis without necrosis or infection, K85.01 Idiopathic acute pancreatitis with uninfected necrosis and K85.02 Idiopathic acute pancreatitis with infected necrosis. Its coding notes include 8 Excludes2 entries.

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (8 notes)
Inherited from Chapter 11 Diseases of the digestive system
  • 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)

Includes

Further defines or gives examples of the content of the category.

Inherited from K85 Acute pancreatitis
  • acute (recurrent) pancreatitis
  • subacute pancreatitis

More specific codes under K85.0 3