ICD-10-CM Codes 2026 (USA)

• B27.91	Infectious mononucleosis, unspecified with polyneuropathy

• B27.00	Gammaherpesviral mononucleosis without complication
  B27.01	Gammaherpesviral mononucleosis with polyneuropathy
  B27.02	Gammaherpesviral mononucleosis with meningitis
  B27.09	Gammaherpesviral mononucleosis with other complications
  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
  B27.80	Other infectious mononucleosis without complication
  B27.81	Other infectious mononucleosis with polyneuropathy
  B27.82	Other infectious mononucleosis with meningitis
  B27.89	Other infectious mononucleosis with other complication
  B27.90	Infectious mononucleosis, unspecified without complication
  B27.91	Infectious mononucleosis, unspecified with polyneuropathy
  B27.92	Infectious mononucleosis, unspecified with meningitis
  B27.99	Infectious mononucleosis, unspecified with other complication

Created by Peter Blahut, MD