I: Certain infectious and parasitic diseases

A70-A74: Other diseases caused by chlamydiae

The A70-A74 range in the ICD-10 encompasses a group of conditions commonly referred to as diseases caused by chlamydiae. Chlamydiae are bacteria that can infect various parts of the body such as eyes, genitals, and lungs. They are typically transmitted through close physical contact or sexual contact with an infected person. Common symptoms of these diseases can include inflammation and, sometimes, discharge from the affected area. The conditions tend to progress gradually over time. If left untreated, they can lead to more serious complications like pelvic inflammatory disease, ectopic pregnancy, or infertility in women, and lower urinary tract diseases in men. While chlamydiae impact primarily the reproductive system, they can also affect the cardiovascular system and eyes, leading to conditions like trachoma, a leading cause of preventable blindness.