ICD-10-CM A59 is the diagnosis code for Trichomoniasis. This code falls under the section "Infections with a predominantly sexual mode of transmission" within Chapter 1 â Certain infectious and parasitic diseases (A00-B99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions are not included in A59. If the patient has both, code each condition separately:
Understanding where A59 sits in the ICD-10-CM classification helps ensure proper coding:
No, A59 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
A59 is the ICD-10-CM diagnosis code for "Trichomoniasis". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
A59 is located in Section A50-A64 â "Infections with a predominantly sexual mode of transmission" within Chapter 1 of the ICD-10-CM Tabular List.
A59 has 3 sub-code(s) that provide more specific detail: A59.0, A59.8, A59.9.
Use A59 when the patients documented diagnosis matches "Trichomoniasis" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Trichomoniasis is A59.
No, A59 is non-billable. Use a more specific sub-code for primary diagnosis billing.
A59 is in Chapter 1 of the ICD-10-CM Tabular List.
Yes, A59 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.