2024 ICD-10-CM Diagnosis Code B73

by

Onchocerciasis

  • B73 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2024 edition of ICD-10-CM B73 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of B73 – other international versions of ICD-10 B73 may differ.

Includes

  • onchocerca volvulus infection
  • onchocercosis
  • river blindness

The following code(s) above B73 contain annotation back-references

 that may be applicable to B73:

  • A00-B99  Certain infectious and parasitic diseases

Clinical Information

  • Filarial infection of the eyes transmitted from person to person by bites of onchocerca volvulus-infected black flies. The microfilariae of onchocerca are thus deposited beneath the skin. They migrate through various tissues including the eye. Those persons infected have impaired vision and up to 20% are blind. The incidence of eye lesions has been reported to be as high as 30% in central america and parts of africa.
  • Infection with nematodes of the genus onchocerca. Characteristics include the presence of firm subcutaneous nodules filled with adult worms, pruritus, and ocular lesions.
  • Infection with nematodes of the genus onchocerca; characteristics include the presence of firm subcutaneous nodules filled with adult worms, pruritus, and ocular lesions.

Code 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

Code annotations containing back-references to B73:

  • Type 2 Excludes: B74