Billable / Specific Code
ICD-10-CM A64 is the diagnosis code for Unspecified sexually transmitted disease. This code falls under the section "Infections with a predominantly sexual mode of transmission" within Chapter 1 — Certain infectious and parasitic diseases (A00-B99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where A64 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, A64 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
A64 is the ICD-10-CM diagnosis code for "Unspecified sexually transmitted disease". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
A64 is located in Section A50-A64 — "Infections with a predominantly sexual mode of transmission" within Chapter 1 of the ICD-10-CM Tabular List.
Use A64 when the patients documented diagnosis matches "Unspecified sexually transmitted disease" 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 Unspecified sexually transmitted disease is A64.
Yes, A64 can be used as a primary diagnosis code since it is billable and specific.
A64 is in Chapter 1 of the ICD-10-CM Tabular List.
Yes, A64 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.