ICD-10-CM Code B26


Version 2021 Non-Billable Code

Not Valid for Submission

B26 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of mumps. The code is NOT valid for the year 2021 for the submission of HIPAA-covered transactions.

Short Description:Mumps
Long Description:Mumps

Consider the following ICD-10 codes with a higher level of specificity:

  • B26.0 - Mumps orchitis
  • B26.1 - Mumps meningitis
  • B26.2 - Mumps encephalitis
  • B26.3 - Mumps pancreatitis
  • B26.8 - Mumps with other complications
  • B26.81 - Mumps hepatitis
  • B26.82 - Mumps myocarditis
  • B26.83 - Mumps nephritis
  • B26.84 - Mumps polyneuropathy
  • B26.85 - Mumps arthritis
  • B26.89 - Other mumps complications
  • B26.9 - Mumps without complication

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code B26:


This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
  • epidemic parotitis
  • infectious parotitis

Clinical Information

  • MUMPS-. an acute infectious disease caused by rubulavirus spread by direct contact airborne droplet nuclei fomites contaminated by infectious saliva and perhaps urine and usually seen in children under the age of 15 although adults may also be affected. from dorland 28th ed
  • MUMPS VACCINE-. vaccines used to prevent infection by mumps virus. best known is the live attenuated virus vaccine of chick embryo origin used for routine immunization of children and for immunization of adolescents and adults who have not had mumps or been immunized with live mumps vaccine. children are usually immunized with measles mumps rubella combination vaccine.
  • MUMPS VIRUS-. the type species of rubulavirus that causes an acute infectious disease in humans affecting mainly children. transmission occurs by droplet infection.
  • VIRAL FUSION PROTEINS-. proteins usually glycoproteins found in the viral envelopes of a variety of viruses. they promote cell membrane fusion and thereby may function in the uptake of the virus by cells.
  • MEASLES MUMPS RUBELLA VACCINE-. a combined vaccine used to prevent measles; mumps; and rubella.

Code Classification

  • Certain infectious and parasitic diseases (A00–B99)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021

Information for Patients


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 measles-mumps-rubella (MMR) vaccine can prevent it.

Before the routine vaccination program in the United States, mumps was a common illness in infants, children and young adults. Now it is a rare disease in the U.S.

Centers for Disease Control and Prevention

  • MMR (Measles, Mumps and Rubella) Vaccine: What You Need to Know (Centers for Disease Control and Prevention)
  • MMRV (Measles, Mumps, Rubella, and Varicella) Vaccine: What You Need to Know (Centers for Disease Control and Prevention)
  • Mumps (Medical Encyclopedia)
  • Mumps and the Vaccine (Shot) to Prevent It (Centers for Disease Control and Prevention)
  • Orchitis (Medical Encyclopedia)

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