ICD-10 Code A71.0 – Initial stage of trachoma (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A71.0 – Initial stage of trachoma
What it is
A71.0 identifies the initial stage of trachoma, a contagious eye infection caused by Chlamydia trachomatis. It refers to the early inflammatory phase before scarring becomes established.
Clinical signs
Typical findings include conjunctival redness, irritation, tearing, and follicular inflammation of the upper tarsal conjunctiva. Clinical features vary; refer to documentation.
When to use this code
Use A71.0 when the provider documents trachoma in its initial stage or early active infection. This is appropriate when the record clearly distinguishes the early phase from later scarring or complications. Check documentation if staging is unclear.
Do not use for
Do not use this code for trachoma with established scarring, cicatricial changes, or other later-stage disease. Also avoid it when the diagnosis is only suspected or not specifically documented.
Coding tip
Code the stage exactly as documented, because trachoma staging affects ICD-10 selection.