A4773 Occult blood test strips
Also known as: guaiac test strips, occult blood test, FOBT strips
Disposable test strips containing chromogenic substrate used to detect occult (hidden) blood in stool samples, urine, or other body fluids.
In Plain Language
strips to detect hidden blood; occult blood test strips
Clinical Context
Used in primary care for colorectal cancer screening via fecal occult blood testing (FOBT) and urinalysis for hematuria. Part of preventive care.
RVU Information
CPT A4773 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
HCPCS A-codes cover medical supplies, equipment, and transport services. Documentation must establish medical necessity and include a physician order. For durable medical equipment (DME), a Certificate of Medical Necessity (CMN) or detailed written order may be required.
Specialties
Frequently Asked Questions
What is CPT code A4773?
CPT A4773 (Occult blood test strips) is a A Codes code. Disposable test strips containing chromogenic substrate used to detect occult (hidden) blood in stool samples, urine, or other body fluids.
Does Medicare cover A4773?
Medicare coverage for A4773 depends on medical necessity and applicable Local Coverage Determinations (LCDs). Used in primary care for colorectal cancer screening via fecal occult blood testing (FOBT) and urinalysis for hematuria. Part of preventive care. A physician order is typically required.
When is CPT A4773 used?
Used in primary care for colorectal cancer screening via fecal occult blood testing (FOBT) and urinalysis for hematuria. Part of preventive care.
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.