ICD-10 Code
International Classification of Diseases, 10th Revision
Aug 16, 2017

See: Other sexually transmitted chlamydial diseases

A56 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 sexually transmitted chlamydial diseases
Includes
  • sexually transmitted diseases due to Chlamydia
  • trachomatis
Excludes1
  • neonatal chlamydial conjunctivitis (P39.1)
  • neonatal chlamydial pneumonia (P23.1)
Excludes2
  • chlamydial lymphogranuloma (A55)
  • conditions classified to A74.-

More specific codes for Other sexually transmitted chlamydial diseases

  • A56.0 - Chlamydial infection of lower genitourinary tract
    • A56.00 - Chlamydial infection of lower genitourinary tract, unspecified
    • A56.01 - Chlamydial cystitis and urethritis
    • A56.02 - Chlamydial vulvovaginitis
    • A56.09 - Other chlamydial infection of lower genitourinary tract
  • A56.1 - Chlamydial infection of pelviperitoneum and other genitourinary organs
    • A56.11 - Chlamydial female pelvic inflammatory disease
    • A56.19 - Other chlamydial genitourinary infection
  • A56.2 - Chlamydial infection of genitourinary tract, unspecified
  • A56.3 - Chlamydial infection of anus and rectum
  • A56.4 - Chlamydial infection of pharynx
  • A56.8 - Sexually transmitted chlamydial infection of other sites
Back to A56
See the 2017 ICD-10-CM Coding Guidelines.

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.