ICD-10 code for Postmeasles meningitis

The ICD-10-CM code for Postmeasles meningitis is B05.1 (Measles complicated by meningitis).

Within B05 (measles), B05.1 is specifically for measles complicated by meningitis. Related codes cover complicated by encephalitis (B05.0), complicated by pneumonia (B05.2), complicated by otitis media (B05.3), with intestinal complications (B05.4), with other complications (B05.8) and without complication (B05.9).

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 791 (Prematurity with Major Problems, relative weight 4.1075), DRG 793 (Full Term Neonate with Major Problems, relative weight 4.2195), DRG 865 (Viral Illness with MCC, relative weight 1.3485) and DRG 866 (Viral Illness without MCC, relative weight 0.8692), in MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period) and MDC 18 (Infectious and Parasitic Diseases, Systemic or Unspecified Sites), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.