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B27.99 - Infectious mononucleosis, unspecified with other complication


The ICD 10 Code for Infectious mononucleosis, unspecified with other complication is listed as B27.99.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: B27.99
Description: Infectious mononucleosis, unspecified with other complication
  • Hepatomegaly in unspecified infectious mononucleosis
Diagnostic Related Groups
(MS-DRG v30.0)
865 - Viral Illness W Mcc
866 - Viral Illness W/o Mcc
Chapter Certain infectious and parasitic diseases (A00-B99)
Block Other viral diseases (B25-B34)
Parent B27.9 - Infectious mononucleosis, unspecified
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 075 - Infectious mononucleosis (approximate)
ICD-10-CM Siblings (same level / similar specificity) of B27.99:
B27.90 - Infectious mononucleosis, unspecified without complication
B27.91 - Infectious mononucleosis, unspecified with polyneuropathy
B27.92 - Infectious mononucleosis, unspecified with meningitis