K85.12
Billable codeBiliary acute pancreatitis with infected necrosis
The ICD-10 code for biliary acute pancreatitis with infected necrosis is K85.12.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- K85.10Biliary acute pancreatitis without necrosis or infection
- K85.11Biliary acute pancreatitis with uninfected necrosis
- K85.12Biliary acute pancreatitis with infected necrosis
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 5770Approximate match
Associated MS-DRGs
K85.12 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.
- DRG 393Other Digestive System Diagnoses with MCC
- DRG 394Other Digestive System Diagnoses with CC
- DRG 395Other Digestive System Diagnoses without CC/MCC
- DRG 438Disorders of Pancreas Except Malignancy with MCC
- DRG 439Disorders of Pancreas Except Malignancy with CC
- DRG 440Disorders of Pancreas Except Malignancy without CC/MCC