B27.12 Cytomegaloviral mononucleosis with meningitisBillable ICD-10-CM code, FY2026.
Defines the logic of DRG(s) 865-866 in MDC 18.
075 Infectious mononucleosis (approximate)B25 Cytomegaloviral disease ("cytomegaloviral mononucleosis (B27.1-)")G63 Polyneuropathy in diseases classified elsewhere ("infectious mononucleosis complicated by polyneuropathy (B27.0-B27.9 with fifth character 1)")K77 Liver disorders in diseases classified elsewhere ("infectious mononucleosis with liver disease (B27.0-B27.9 with fifth character 9)")D72.821 Monocytosis (symptomatic) ("infectious mononucleosis (B27.-)")G02 Meningitis in other infectious and parasitic diseases classified elsewhere ("infectious mononucleosis complicated by meningitis (B27.- with fifth character 2)")H67 Otitis media in diseases classified elsewhere ("viral disease NEC (B00-B34)")J02.8 Acute pharyngitis due to other specified organisms ("acute pharyngitis due to infectious mononucleosis (B27.-)")B27.02 Gammaherpesviral mononucleosis with meningitisB27.09 Gammaherpesviral mononucleosis with other complicationsB27.1 Cytomegaloviral mononucleosisB27.10 Cytomegaloviral mononucleosis without complicationsB27.11 Cytomegaloviral mononucleosis with polyneuropathyB27.12 Cytomegaloviral mononucleosis with meningitis (this code)B27.19 Cytomegaloviral mononucleosis with other complicationB27.8 Other infectious mononucleosisB27.80 Other infectious mononucleosis without complicationB27.81 Other infectious mononucleosis with polyneuropathyB27.82 Other infectious mononucleosis with meningitis