B26 – Mumps
ICD-10-CM 2027 diagnosis code · Other viral diseases
ICD-10-CM code
B26
- Code
B26(claims format:B26)- Description
- Mumps
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 1. Certain infectious and parasitic diseases (A00-B99)
- Block
- B25-B34 Other viral diseases
Billable codes under B26
B26 is a header code and cannot be used on claims. Choose the most specific code:
- B26.0 – Mumps orchitisBillable
- B26.1 – Mumps meningitisBillable
- B26.2 – Mumps encephalitisBillable
- B26.3 – Mumps pancreatitisBillable
- B26.8 – Mumps with other complicationsHeader (more codes below)
- B26.9 – Mumps without complicationBillable
Notes for B26
Includes:
- epidemic parotitis
- infectious parotitis
Frequently asked questions
What is ICD-10 code B26?
B26 is the ICD-10-CM code for mumps, in the block B25-B34 (Other viral diseases).
Is B26 a billable code?
No. B26 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.