B27
Non-billableInfectious mononucleosis
B27 is the ICD-10-CM code for Infectious mononucleosis. It is a non-billable category code — use a more specific child code such as B27.0 for billing.
- Status
- Header (non-billable)
- Chapter
- A00-B99
- Subcodes
- 4
- Edition
- FY2026
A00-B99 Certain infectious and parasitic diseases
Includes
- •glandular fever
- •monocytic angina
- •Pfeiffer's disease
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
Look up another ICD-10 code or condition