A9559 Co57 cyano
Also known as: Co-57 B12, cobalt cyanocobalamin
Cobalt Co-57 cyanocobalamin injection used as a radiotracer for vitamin B12 absorption assessment.
In Plain Language
vitamin B12 absorption tracer; B12 absorption test
Clinical Context
Used in gastroenterology for Schilling test assessment of vitamin B12 malabsorption and pernicious anemia.
RVU Information
CPT A9559 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 A9559?
CPT A9559 (Co57 cyano) is a A Codes code. Cobalt Co-57 cyanocobalamin injection used as a radiotracer for vitamin B12 absorption assessment.
Does Medicare cover A9559?
Medicare coverage for A9559 depends on medical necessity and applicable Local Coverage Determinations (LCDs). Used in gastroenterology for Schilling test assessment of vitamin B12 malabsorption and pernicious anemia. A physician order is typically required.
When is CPT A9559 used?
Used in gastroenterology for Schilling test assessment of vitamin B12 malabsorption and pernicious anemia.
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.