2024 ICD-10-CM Diagnosis Code A74

by

Other diseases caused by chlamydiae

  • A74 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 A74 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of A74 – other international versions of ICD-10 A74 may differ.

AD

Type 1 Excludes

  • neonatal chlamydial conjunctivitis (P39.1)
  • neonatal chlamydial pneumonia (P23.1)
  • Reiter’s disease (M02.3-)
  • sexually transmitted chlamydial diseases (A55–A56)

Type 2 Excludes

  • chlamydial pneumonia (J16.0)

The following code(s) above A74 contain annotation back-references

 that may be applicable to A74:

  • A00-B99  Certain infectious and parasitic diseases
  • A70-A74  Other diseases caused by chlamydiae

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 A74:

  • Type 2 Excludes: A56