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B26

Non-billable

Mumps

B26 is the ICD-10-CM code for Mumps. It is a non-billable category code — use a more specific child code such as B26.0 for billing.

Status
Header (non-billable)
Chapter
A00-B99
Subcodes
6
Edition
FY2026

A00-B99 Certain infectious and parasitic diseases

What this means — in plain language

MedlinePlus · NIH

Mumps is an illness caused by the mumps virus. It starts with: Fever Headache Muscle aches Tiredness Loss of appetite After that, the salivary glands under the ears or jaw become swollen and tender. The swelling can be on one or both sides of the face. Symptoms last 7 to 10 days. Serious complications are rare. You can catch mumps by being with another person who has it. There is no treatment for mumps, but the…

Read more about Mumps at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Includes

  • •epidemic parotitis
  • •infectious parotitis

Frequently asked questions

What is ICD-10 code B26?
B26 is the ICD-10-CM code for "Mumps". It falls under A00-B99 Certain infectious and parasitic diseases.
Is B26 a billable code?
No — B26 is a non-billable header code. Use a more specific child code (such as B26.0) for billing.
What are the subcodes of B26?
B26 has 6 more specific child codes, including B26.0, B26.1, B26.2.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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