ICD-10 Code for Mumps
The ICD-10-CM code for mumps is B26.9 — Mumps without complication. This is the code the Alphabetic Index gives for mumps with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
Billable
Which mumps code should you use?
The Alphabetic Index lists 10 codes under Mumps. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| arthritis | B26.85 | Mumps arthritis |
| complication NEC | B26.89 | Other mumps complications |
| encephalitis | B26.2 | Mumps encephalitis |
| hepatitis | B26.81 | Mumps hepatitis |
| meningitis | B26.1 | Mumps meningitis |
| meningoencephalitis | B26.2 | Mumps encephalitis |
| myocarditis | B26.82 | Mumps myocarditis |
| oophoritis | B26.89 | Other mumps complications |
| orchitis | B26.0 | Mumps orchitis |
| pancreatitis | B26.3 | Mumps pancreatitis |
| polyneuropathy | B26.84 | Mumps polyneuropathy |
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources