B26.1 – Mumps meningitis
ICD-10-CM 2027 diagnosis code · Other viral diseases
ICD-10-CM code
B26.1
- Code
B26.1(claims format:B261)- Description
- Mumps meningitis
- Billable
- Yes – valid for HIPAA-covered transactions
- 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
- Parent codes
- B26
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
B26 – Mumps
Includes:
- epidemic parotitis
- infectious parotitis
Index terms for B26.1
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in B26
- B26.0 – Mumps orchitisBillable
- B26.2 – Mumps encephalitisBillable
- B26.3 – Mumps pancreatitisBillable
- B26.8 – Mumps with other complicationsHeader
- B26.9 – Mumps without complicationBillable
Frequently asked questions
What is ICD-10 code B26.1?
B26.1 is the ICD-10-CM code for mumps meningitis, in the block B25-B34 (Other viral diseases).
Is B26.1 a billable code?
Yes. B26.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does B26.1 belong to?
It belongs to category B26 – Mumps.
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.