Skip to content
Dx

ICD-10-CM 2027 diagnosis code

A59.0Urogenital trichomoniasis

Not billable — use a more specific code

A59.0 is a header code, so it can't be reported by itself. Choose one of the 5 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About A59.0

A59.0 is the ICD-10-CM diagnosis code for urogenital trichomoniasis. It belongs to category A59 (trichomoniasis), block A50-A64 (infections with a predominantly sexual mode of transmission) and chapter 1 (certain infectious and parasitic diseases). It is a header code, so it can't be reported by itself; one of its 5 subcodes must be used instead.

Within A59 (trichomoniasis), A59.0 is specifically for urogenital trichomoniasis. Related codes cover of other sites (A59.8) and unspecified (A59.9).

To report this condition, pick the subcode that matches the documentation: A59.00 (unspecified), A59.01 (vulvovaginitis), A59.02 (prostatitis), A59.03 (urethritis) and A59.09 (trichomoniasis).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under A59.0

Notes that apply from higher levels

Instructions written at a parent level also apply to A59.0.

› From A59 Trichomoniasis
Excludes2
  • intestinal trichomoniasis (A07.8)

Broader instructions also apply from A50-A64 Infections with a predominantly sexual mode of transmission and Chapter 1: Certain infectious and parasitic diseases.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about A59.0

Is A59.0 billable?

No. A59.0 is a header code. Report one of its more specific subcodes instead.