ICD-10 code for polyneuropathy mumps

The ICD-10-CM code for polyneuropathy mumps is B26.84 (Mumps polyneuropathy).

Within B26.8 (mumps with other complications), B26.84 is specifically for mumps polyneuropathy. Related codes cover mumps hepatitis (B26.81), mumps myocarditis (B26.82), mumps nephritis (B26.83), mumps arthritis (B26.85) and other mumps complications (B26.89).

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 073 (Cranial and Peripheral Nerve Disorders with MCC, relative weight 1.5779), DRG 074 (Cranial and Peripheral Nerve Disorders without MCC, relative weight 1.0173), 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 01 (Diseases and Disorders of the Nervous 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.