Other diseases caused by chlamydiae (A70-A74)

The ICD-10 codes from A70 to A74 cover various diseases caused by chlamydiae bacteria, including infections like psittacosis, trachoma, conjunctivitis, and other chlamydial conditions. These codes help specify different chlamydial infections affecting the eyes, respiratory system, and other body areas.

This range includes A70 for Chlamydia psittaci infections, also known as psittacosis or ornithosis, a bacterial infection often linked to bird exposure that can cause pneumonia. Codes A71.0, A71.1, and A71.9 detail stages of trachoma, a contagious eye disease that can lead to blindness. The A74 group addresses other chlamydial diseases, such as A74.0 for chlamydial conjunctivitis (inflammation of the eye’s conjunctiva), and A74.81 for chlamydial peritonitis, linked to Fitz-Hugh-Curtis syndrome. Additionally, A74.89 covers less common infections like chlamydial colitis and neonatal infections, while A74.9 is used for unspecified chlamydial infections. These codes provide precise classification for bacterial chlamydial diseases affecting different organs and stages, aiding accurate diagnosis and treatment documentation.