A59.0

Urogenital trichomoniasis

FY2027Chapter 1: Certain infectious and parasitic diseases/A50–A64 Infections with a predominantly sexual mode of transmission

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

A59.0 is a non-billable ICD-10-CM code header for urogenital trichomoniasis. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are A59.00 Urogenital trichomoniasis, unspecified; A59.01 Trichomonal vulvovaginitis; A59.02 Trichomonal prostatitis; A59.03 Trichomonal cystitis and urethritis and 1 more. Its coding notes include a Use additional code instruction, 2 Excludes1 entries and 7 Excludes2 entries.

Use additional code

Add the listed code as a secondary code, if known.

Also from chapter/block level (1 note)
Inherited from Chapter 1 Certain infectious and parasitic diseases
  • code to identify resistance to antimicrobial drugs (Z16.-)

Excludes1

Not coded here. The listed conditions generally should not be reported together.

Also from chapter/block level (2 notes)
Inherited from A50–A64 Infections with a predominantly sexual mode of transmission
  • nonspecific and nongonococcal urethritis (N34.1)
  • Reiter's disease (M02.3-)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Inherited from A59 Trichomoniasis
  • intestinal trichomoniasis (A07.8)
Also from chapter/block level (6 notes)
Inherited from A50–A64 Infections with a predominantly sexual mode of transmission
  • human immunodeficiency virus [HIV] disease (B20)
Inherited from Chapter 1 Certain infectious and parasitic diseases
  • carrier or suspected carrier of infectious disease (Z22.-)
  • certain localized infections - see body system-related chapters
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)

Includes

Further defines or gives examples of the content of the category.

Also from chapter/block level (1 note)
Inherited from Chapter 1 Certain infectious and parasitic diseases
  • diseases generally recognized as communicable or transmissible

More specific codes under A59.0 5