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A74.0

Billable

Chlamydial conjunctivitis

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

This is an eye infection caused by chlamydia bacteria that affects the conjunctiva, the clear membrane covering the white part of the eye and inner eyelids. It causes redness, discharge, and irritation of the eye.

Coding Tips

  • •Verify whether the infection is in one eye (unilateral) or both eyes (bilateral), as this may affect documentation and treatment approach
  • •Distinguish between chlamydial conjunctivitis in newborns (neonatal ophthalmia) versus adults, as A74.0 typically refers to adult cases; neonatal cases use different codes (P39.1)

Code Hierarchy

└A74Other diseases caused by chlamydiae└A74.0Chlamydial conjunctivitis
└A74.0Chlamydial conjunctivitis

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