2024 ICD-10-CM Diagnosis Code B74.3

Loiasis

  • B74.3 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 B74.3 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of B74.3 – other international versions of ICD-10 B74.3 may differ.

Applicable To

  • Calabar swelling
  • Eyeworm disease of Africa
  • Loa loa infection

The following code(s) above B74.3 contain annotation back-references

 that may be applicable to B74.3:

  • A00-B99  Certain infectious and parasitic diseases
  • B74  Filariasis

Approximate Synonyms

  • Infection by loa loa

Clinical Information

  • A parasitic infection caused by the nematode loa loa. The vector in the transmission of this infection is the horsefly (tabanus) or the deerfly or mango fly (chrysops). The larvae may be seen just beneath the skin or passing through the conjunctiva. Eye lesions are not uncommon. The disease is generally mild and painless.

ICD-10-CM B74.3 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

  • 867 Other infectious and parasitic diseases diagnoses with mcc
  • 868 Other infectious and parasitic diseases diagnoses with cc
  • 869 Other infectious and parasitic diseases diagnoses without cc/mcc

Convert B74.3 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 B74.3: