2024 ICD-10-CM Diagnosis Code B77

Ascariasis

  • B77 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 B77 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of B77 – other international versions of ICD-10 B77 may differ.

Includes

  • ascaridiasis
  • roundworm infection

The following code(s) above B77 contain annotation back-references

 that may be applicable to B77:

  • A00-B99  Certain infectious and parasitic diseases

Clinical Information

  • Infection by nematodes of the genus ascaris. Ingestion of infective eggs causes diarrhea and pneumonitis. Its distribution is more prevalent in areas of poor sanitation and where human feces are used for fertilizer.
  • Infection with nematodes of the genus ascaridia. This condition usually occurs in fowl, often manifesting diarrhea.
  • Infections by nematodes, general or unspecified.

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