2024 ICD-10-CM Diagnosis Code B05.9

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Measles without complication

  • B05.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2024 edition of ICD-10-CM B05.9 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of B05.9 – other international versions of ICD-10 B05.9 may differ.

Applicable To

  • Measles NOS

The following code(s) above B05.9 contain annotation back-references

 that may be applicable to B05.9:

  • A00-B99  Certain infectious and parasitic diseases
  • B05  Measles

Approximate Synonyms

  • Measles

Clinical Information

  • A highly contagious infectious disease caused by morbillivirus, common among children but also seen in the nonimmune of any age, in which the virus enters the respiratory tract via droplet nuclei and multiplies in the epithelial cells, spreading throughout the mononuclear phagocyte system.
  • A highly contagious viral infection caused by the measles virus. Symptoms appear 8-12 days after exposure and include a rash, cough, fever and muscle pains that can last 4-7 days. Measles vaccines are available to provide prophylaxis, usually combined with mumps and rubella vaccines (mmr).
  • Childhood viral disease manifested as acute febrile illness associated with cough, coryza, conjunctivitis, spots on the buccal mucosa, and rash starting on the head and neck and spreading to the rest of the body.
  • Measles is an infectious disease caused by a virus. It spreads easily from person to person. The main symptom of measles is an itchy skin rash. The rash often starts on the head and moves down the body. Other symptoms include
    • fever
    • cough
    • runny nose
    • conjunctivitis (pink eye)
    sometimes measles can lead to serious problems. There is no treatment for measles, but the measles-mumps-rubella (mmr) vaccine can prevent it. You may have heard of “german measles”, also known as rubella, which is a different illness altogether. Centers for Disease Control and Prevention.

ICD-10-CM B05.9 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

  • 865 Viral illness with mcc
  • 866 Viral illness without mcc

Convert B05.9 to ICD-9-CMCode History

  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
  • 2024 (effective 10/1/2023): No change

Diagnosis Index entries containing back-references to B05.9:

  • Koplik’s spots B05.9
  • Measles (black) (hemorrhagic) (suppressed) B05.9
  • Spots, spotting (in) (of)
    • Koplik’s B05.9