ICD-10 Code
International Classification of Diseases, 10th Revision
Mar 23, 2019

See: Other diseases caused by chlamydiae

A74 is NOT a complete or valid ICD 10 diagnosis code.

You should code each health care encounter to the level of certainty known for that encounter. When sufficient clinical information is not known or available to assign a more specific code, it is acceptable to report the appropriate unspecified code.

See below for more specifc codes relating to
Other diseases caused by chlamydiae
  • neonatal chlamydial conjunctivitis (P39.1)
  • neonatal chlamydial pneumonia (P23.1)
  • Reiter's disease (M02.3-)
  • sexually transmitted chlamydial diseases (A55-A56)
  • chlamydial pneumonia (J16.0)

More specific codes for Other diseases caused by chlamydiae

  • A74.0 - Chlamydial conjunctivitis
  • A74.8 - Other chlamydial diseases
    • A74.81 - Chlamydial peritonitis
    • A74.89 - Other chlamydial diseases
  • A74.9 - Chlamydial infection, unspecified
See also ICD 10 code for
Back to A74
See the ICD-10-CM Coding Guidelines.

Questions related to A74 Other diseases caused by chlamydiae

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.