B26.84: Mumps polyneuropathy
B26.84 is the billable ICD-10-CM diagnosis code for Mumps polyneuropathy. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code B26.84?
B26.84 is the ICD-10-CM diagnosis code for Mumps polyneuropathy. It belongs to category B26 (Mumps).
Is B26.84 a billable code?
Yes. B26.84 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does B26.84 belong to?
B26.84 is part of ICD-10-CM category B26 — Mumps, which has 22 billable codes.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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