Trichomoniasis (A59) ICD-10-CM
The A59 code range covers trichomoniasis with 9 ICD-10-CM diagnosis codes. 7 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- intestinal trichomoniasis A07.8
Codes in the A59 Range 9 codes · 7 billable
- A59 TrichomoniasisNon-billable
- A59.0 Urogenital trichomoniasisNon-billable
- A59.00 Urogenital trichomoniasis, unspecified
- A59.01 Trichomonal vulvovaginitis
- A59.02 Trichomonal prostatitis
- A59.03 Trichomonal cystitis and urethritis
- A59.09 Other urogenital trichomoniasis
- A59.8 Trichomoniasis of other sites
- A59.9 Trichomoniasis, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the A59 range.
Trichomonas Infections
Infections in birds and mammals produced by various species of Trichomonas.
About the A59 Code Range
Trichomoniasis is an infection caused by Trichomonas. It appears among infections transmitted predominantly through sexual contact.
A59.0 covers urogenital trichomoniasis, meaning infection involving the urinary or genital system. Its subdivisions name the vulva and vagina (A59.01), prostate (A59.02), or bladder and urethra (A59.03). They also include unspecified urogenital infection (A59.00) and other urogenital infection (A59.09).
A59.8 identifies trichomoniasis at other sites, while A59.9 leaves the site unspecified.
Questions About This Page
How many billable codes are in the A59 range?
Of the 9 codes in this range, 7 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the A59 range classify?
The range classifies trichomoniasis. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
