ICD-10 code for orchitis mumps

The ICD-10-CM code for orchitis mumps is B26.0 (Mumps orchitis).

Within B26 (mumps), B26.0 is specifically for mumps orchitis. Related codes cover meningitis (B26.1), encephalitis (B26.2), pancreatitis (B26.3), 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 727 (Inflammation of the Male Reproductive System with MCC, relative weight 1.37), DRG 728 (Inflammation of the Male Reproductive System without MCC, relative weight 0.8224), 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 12 (Diseases and Disorders of the Male Reproductive System) 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.