ICD-10-CM 2027
ICD-10 code for pancreatitis mumps
From the official ICD-10-CM alphabetic index entry “Mumps › pancreatitis”. Page updated September 29, 2026.
About coding pancreatitis mumps
The ICD-10-CM code for pancreatitis mumps is B26.3 (Mumps pancreatitis).
Within B26 (mumps), B26.3 is specifically for mumps pancreatitis. Related codes cover orchitis (B26.0), meningitis (B26.1), encephalitis (B26.2), with other complications (B26.8) and without complication (B26.9).
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), DRG 440 (Disorders of Pancreas Except Malignancy without CC/MCC, relative weight 0.5965), DRG 791 (Prematurity with Major Problems, relative weight 4.1075) and DRG 793 (Full Term Neonate with Major Problems, relative weight 4.2195), in MDC 07 (Diseases and Disorders of the Hepatobiliary System and Pancreas) and MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), 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 pancreatitis mumps ICD-10 codes
What is the ICD-10 code for pancreatitis mumps?
- B26.3 — Mumps pancreatitis.
Is B26.3 billable?
- Yes. B26.3 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can B26.3 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict B26.3 as a principal diagnosis.
Is B26.3 a CC or MCC?
- B26.3 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.