B27.99
BillableInfectious mononucleosis, unspecified with other complication
B27.99 is the ICD-10-CM code for Infectious mononucleosis, unspecified with other complication. It is a billable, specific code valid for reimbursement.
A00-B99 Certain infectious and parasitic diseases
Includes
- •Hepatomegaly in unspecified infectious mononucleosis
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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