2024 ICD-10-CM Diagnosis Code B77.9

Ascariasis, unspecified

  • B77.9 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 B77.9 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of B77.9 – other international versions of ICD-10 B77.9 may differ.

The following code(s) above B77.9 contain annotation back-references

 that may be applicable to B77.9:

  • A00-B99  Certain infectious and parasitic diseases
  • B77  Ascariasis

Approximate Synonyms

  • Ascariasis

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.

ICD-10-CM B77.9 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

  • 391 Esophagitis, gastroenteritis and miscellaneous digestive disorders with mcc
  • 392 Esophagitis, gastroenteritis and miscellaneous digestive disorders without mcc

Convert B77.9 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 B77.9: