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B27.99 Infectious mononucleosis, unspecified with other complication
BackB27Infectious mononucleosisCategory4 →B27.0Gammaherpesviral mononucleosisCategory4 →B27.00Gammaherpesviral mononucleosis without complicationCategoryB27.01Gammaherpesviral mononucleosis with polyneuropathyCategoryB27.02Gammaherpesviral mononucleosis with meningitisCategoryB27.09Gammaherpesviral mononucleosis with other complicationsCategoryB27.1Cytomegaloviral mononucleosisCategory4 →B27.10Cytomegaloviral mononucleosis without complicationsCategoryB27.11Cytomegaloviral mononucleosis with polyneuropathyCategoryB27.12Cytomegaloviral mononucleosis with meningitisCategoryB27.19Cytomegaloviral mononucleosis with other complicationCategoryB27.8Other infectious mononucleosisCategory4 →B27.80Other infectious mononucleosis without complicationCategoryB27.81Other infectious mononucleosis with polyneuropathyCategoryB27.82Other infectious mononucleosis with meningitisCategoryB27.89Other infectious mononucleosis with other complicationCategoryB27.9Infectious mononucleosis, unspecifiedCategory4 →B27.90Infectious mononucleosis, unspecified without complicationCategoryB27.91Infectious mononucleosis, unspecified with polyneuropathyCategoryB27.92Infectious mononucleosis, unspecified with meningitisCategoryB27.99Infectious mononucleosis, unspecified with other complicationCategory
CategoryCODABLE
B27.99
Infectious mononucleosis, unspecified with other complication
EXAMPLES
Hepatomegaly in unspecified infectious mononucleosis
- Chapter
- I · Certain infectious and parasitic diseases
- Section
- B25-B34
- Valid from
Source
CMS ICD-10-CM Tabular List, edition FY2026.