Is B27.8 a billable code?
No. B27.8 is a header code that groups 4 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
B27.8: Other infectious mononucleosis
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
B27.8 groups related diagnoses under other infectious mononucleosis. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under B27.8
- B27.80Other infectious mononucleosis without complication
- B27.81Other infectious mononucleosis with polyneuropathy
- B27.82Other infectious mononucleosis with meningitis
- B27.89Other infectious mononucleosis with other complication
Other codes in B27 Infectious mononucleosis
B27.8 questions
What does B27.8 mean?
B27.8 is the ICD-10-CM code for Other infectious mononucleosis. It is in chapter 1, Certain infectious and parasitic diseases (A00-B99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.