Trichomoniasis (A59)

The ICD-10 code for trichomoniasis is centered around the parasitic infection caused by the protozoan Trichomonas vaginalis, primarily affecting the urogenital tract. These codes, starting with A59, categorize the infection based on the specific site and nature of the condition.

The A59 series captures variations of trichomoniasis, such as urogenital trichomoniasis (A59.0), including detailed distinctions like unspecified urogenital infection (A59.00) and trichomonal vulvovaginitis (A59.01), which is a female genital infection. Other codes specify inflammation of male organs like trichomonal prostatitis (A59.02), and urinary tract infections such as trichomonal cystitis and urethritis (A59.03). Additional codes cover other urogenital areas (A59.09) and trichomoniasis involving sites beyond the genitals (A59.8), like balanitis or balanoposthitis. For cases where the diagnosis is uncertain or not specifically categorized, A59.9 is used for unspecified trichomoniasis. Using these codes allows healthcare providers and coders to accurately document and identify infections related to Trichomonas vaginalis, also referred to in synonyms such as "female genital Trichomonas vaginalis infection," "trichomonal vaginitis," or "infection by Trichomonas." This ensures precise classification for treatment and epidemiological tracking.