ICD-10 code for meningitis simplex herpes

The ICD-10-CM code for meningitis simplex herpes is B00.3 (Herpesviral meningitis). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on B00.3.

Within B00 (herpesviral [herpes simplex] infections), B00.3 is specifically for herpesviral meningitis. Related codes cover eczema herpeticum (B00.0), herpesviral vesicular dermatitis (B00.1), herpesviral gingivostomatitis and pharyngotonsillitis (B00.2), herpesviral encephalitis (B00.4), herpesviral ocular disease (B00.5), disseminated herpesviral disease (B00.7), other forms of herpesviral infections (B00.8) and herpesviral infection, unspecified (B00.9).

As a secondary diagnosis it is an MCC (major complication or comorbidity), which can move an inpatient stay into the highest-paying "with MCC" 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 023 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator, relative weight 5.7444), DRG 024 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCC, relative weight 3.9708), DRG 075 (Viral Meningitis with CC/MCC, relative weight 1.7707), DRG 076 (Viral Meningitis without CC/MCC, relative weight 0.8675), DRG 791 (Prematurity with Major Problems, relative weight 4.1075), DRG 793 (Full Term Neonate with Major Problems, relative weight 4.2195) and 3 more, in MDC 01 (Diseases and Disorders of the Nervous System), MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period) and MDC 25 (Human Immunodeficiency Virus Infections), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.