Active stage of trachoma

This code signifies the presence of an active ocular infection caused by Chlamydia trachomatis, characterized by inflammation of the conjunctiva and cornea. It represents the acute, infectious phase of trachoma, which can lead to scarring and blindness if untreated.

Use this code when documentation explicitly states "active trachoma" or describes clinical signs consistent with active infection, such as follicular conjunctivitis, papillary hypertrophy, or pannus. This code is appropriate for initial diagnosis and during treatment of the active infectious stage.

• Do not use this code for sequelae or inactive stages of trachoma; refer to codes in category H13.1 for those conditions.
• Ensure documentation specifies "active" to differentiate from chronic or healed stages.
• Consider co-reporting with codes for associated complications if present and documented.