B27 - Infectious mononucleosis
B27.1 - Cytomegaloviral mononucleosis
B27.10 - Cytomegaloviral mononucleosis without complications
B27.11 - Cytomegaloviral mononucleosis with polyneuropathy
B27.12 - Cytomegaloviral mononucleosis with meningitis
B27.19 - Cytomegaloviral mononucleosis with other complication