A59.0 – Urogenital trichomoniasis

ICD-10-CM 2027 diagnosis code · Infections with a predominantly sexual mode of transmission

Non-billable header

ICD-10-CM code A59.0

Code: A59.0 (claims format: A590)
Description: Urogenital trichomoniasis
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 1. Certain infectious and parasitic diseases (A00-B99)
Block: A50-A64 Infections with a predominantly sexual mode of transmission
Parent codes: A59

Billable codes under A59.0

A59.0 is a header code and cannot be used on claims. Choose the most specific code:

A59.00 – Urogenital trichomoniasis, unspecifiedBillable
A59.01 – Trichomonal vulvovaginitisBillable
A59.02 – Trichomonal prostatitisBillable
A59.03 – Trichomonal cystitis and urethritisBillable
A59.09 – Other urogenital trichomoniasisBillable

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

A59 – Trichomoniasis

Excludes2 (not included here):

intestinal trichomoniasis (A07.8)

Block A50-A64

Excludes1 (not coded here):

nonspecific and nongonococcal urethritis (N34.1)
Reiter's disease (M02.3-)

Excludes2 (not included here):

human immunodeficiency virus [HIV] disease (B20)

Related codes in A59

A59.8 – Trichomoniasis of other sitesBillable
A59.9 – Trichomoniasis, unspecifiedBillable

Frequently asked questions

What is ICD-10 code A59.0?

A59.0 is the ICD-10-CM code for urogenital trichomoniasis, in the block A50-A64 (Infections with a predominantly sexual mode of transmission).

Is A59.0 a billable code?

No. A59.0 is a header code with more specific child codes; report one of the billable codes listed above.

What category does A59.0 belong to?

It belongs to category A59 – Trichomoniasis.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.