A59 - Trichomoniasis

Version 2023
Short Description:Trichomoniasis
Long Description:Trichomoniasis
Status: Not Valid for Submission
Version:ICD-10-CM 2023
Code Classification:
  • Certain infectious and parasitic diseases (A00–B99)
    • Infections with a predominantly sexual mode of transmission (A50-A64)
      • Trichomoniasis (A59)

A59 is a non-specific and non-billable ICD-10 code code, consider using a code with a higher level of specificity for a diagnosis of trichomoniasis. The code is not specific and is NOT valid for the year 2023 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding for Trichomoniasis

Non-specific codes like A59 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for trichomoniasis:

  • NON-BILLABLE CODE - A59.0 for Urogenital trichomoniasis
  • BILLABLE CODE - Use A59.00 for Urogenital trichomoniasis, unspecified
  • BILLABLE CODE - Use A59.01 for Trichomonal vulvovaginitis
  • BILLABLE CODE - Use A59.02 for Trichomonal prostatitis
  • BILLABLE CODE - Use A59.03 for Trichomonal cystitis and urethritis
  • BILLABLE CODE - Use A59.09 for Other urogenital trichomoniasis
  • BILLABLE CODE - Use A59.8 for Trichomoniasis of other sites
  • BILLABLE CODE - Use A59.9 for Trichomoniasis, unspecified

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to this diagnosis code:

Type 2 Excludes

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.

Patient Education


Trichomoniasis is a sexually transmitted disease caused by a parasite. It spreads from person to person during sex. Many people do not have any symptoms. If you do get symptoms, they usually happen within 5 to 28 days after being infected.

It can cause vaginitis in women. Symptoms include:

Most men do not have symptoms. If they do, they may have:

Trichomoniasis can increase the risk of getting or spreading other sexually transmitted diseases. Pregnant women with trichomoniasis are more likely to give birth too early, and their babies are more likely have a low birth weight.

Lab tests can tell if you have the infection. Treatment is with antibiotics. If you are infected, you and your partner must be treated.

Correct usage of latex condoms greatly reduces, but does not eliminate, the risk of catching or spreading trichomoniasis. If your or your partner is allergic to latex, you can use polyurethane condoms. The most reliable way to avoid infection is to not have anal, vaginal, or oral sex.

Centers for Disease Control and Prevention

[Learn More in MedlinePlus]

Code History