S3645 Hiv-1 antibody testing of or
Also known as: oral HIV test, saliva HIV antibody test
Oral mucosa (saliva) specimen collection and Human Immunodeficiency Virus type 1 antibody testing for Human Immunodeficiency Virus screening.
In Plain Language
HIV test using saliva; oral AIDS screening
Clinical Context
Used in sexually transmitted infection clinics, public health settings, and primary care for non-invasive Human Immunodeficiency Virus screening.
RVU Information
CPT S3645 does not have a physician work RVU assigned by CMS. This is typical for supply, drug, and equipment codes — reimbursement is based on Average Sales Price (ASP), fee schedules, or payer contracts rather than the RVU system.
Billing & Documentation
S-codes are used by private payers (not Medicare) for services without a standard CPT or HCPCS code. Coverage varies significantly between insurers. Verify payer acceptance before billing and document medical necessity thoroughly.
Specialties
Frequently Asked Questions
What is CPT code S3645?
CPT S3645 (Hiv-1 antibody testing of or) is a S Codes code. Oral mucosa (saliva) specimen collection and Human Immunodeficiency Virus type 1 antibody testing for Human Immunodeficiency Virus screening.
Is S3645 covered by insurance?
S3645 is a temporary HCPCS code. Coverage varies by payer and may change when permanent codes are assigned. Used in sexually transmitted infection clinics, public health settings, and primary care for non-invasive Human Immunodeficiency Virus screening.
When is CPT S3645 used?
Used in sexually transmitted infection clinics, public health settings, and primary care for non-invasive Human Immunodeficiency Virus screening.
Track This Code in RVU Edge
Log procedures, calculate wRVUs, and benchmark against national data — all in one app.
CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.