ICD-10-CM 2027
ICD-10 code for cystic chronic pancreatitis
From the official ICD-10-CM alphabetic index entry “Pancreatitis (annular) (apoplectic) (calcareous) (edematous) (hemorrhagic) (malignant) (subacute) (suppurative) › cystic (chronic)”. Page updated September 29, 2026.
About coding cystic chronic pancreatitis
The ICD-10-CM code for cystic chronic pancreatitis is K86.1 (Other chronic pancreatitis).
Within K86, choose K86.1 (Other chronic pancreatitis) only when documentation doesn't support a more specific option: alcohol-induced chronic pancreatitis (K86.0), cyst of pancreas (K86.2), pseudocyst of pancreas (K86.3), other specified diseases of pancreas (K86.8) and disease of pancreas, unspecified (K86.9).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 438 (Disorders of Pancreas Except Malignancy with MCC, relative weight 1.5765), DRG 439 (Disorders of Pancreas Except Malignancy with CC, relative weight 0.8402) and DRG 440 (Disorders of Pancreas Except Malignancy without CC/MCC, relative weight 0.5965), in MDC 07 (Diseases and Disorders of the Hepatobiliary System and Pancreas), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about cystic chronic pancreatitis ICD-10 codes
What is the ICD-10 code for cystic chronic pancreatitis?
- K86.1 — Other chronic pancreatitis.
Is K86.1 billable?
- Yes. K86.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K86.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K86.1 as a principal diagnosis.
Is K86.1 a CC or MCC?
- K86.1 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.