Trichomonal vulvovaginitis

This code represents an inflammation of the vulva and vagina caused by an infection with the parasite Trichomonas vaginalis. It is a common sexually transmitted infection (STI) characterized by symptoms such as vaginal discharge, itching, burning, and dyspareunia.

Apply this code when documentation clearly indicates a diagnosis of vulvovaginitis specifically attributed to Trichomonas vaginalis. This diagnosis is typically confirmed by microscopic examination of vaginal fluid (wet mount) showing trichomonads, or by nucleic acid amplification tests (NAATs).

• Ensure the documentation specifies "trichomonal" to differentiate from other causes of vulvovaginitis.
• Do not use this code for unspecified vulvovaginitis; look for specific infectious agents.
• Consider co-occurring STIs and code them separately if documented.