ICD-10-CM > A00-B99 > A70-A74 > A74 A74 Other diseases caused by chlamydiae Non-Billable/Non-Specific 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) Codes A74.0Chlamydial conjunctivitisA74.8Other chlamydial diseasesA74.81Chlamydial peritonitisA74.89Other chlamydial diseasesA74.9Chlamydial infection, unspecified