A4642 In111 satumomab
Also known as: OncoScint, In-111 satumomab, tumor imaging agent
Indium-111 labeled satumomab (OncoScint), a radiolabeled monoclonal antibody used for imaging colorectal and ovarian cancer. Binds to tumor-associated glycoprotein 72 (TAG-72).
In Plain Language
radioactive cancer tracer; imaging dye for tumor detection
Clinical Context
Used in nuclear medicine imaging to detect colorectal and ovarian cancer metastases. Injected intravenously and imaged 48-72 hours later. Helps identify occult malignancy.
RVU Information
CPT A4642 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 A4642?
CPT A4642 (In111 satumomab) is a A Codes code. Indium-111 labeled satumomab (OncoScint), a radiolabeled monoclonal antibody used for imaging colorectal and ovarian cancer. Binds to tumor-associated glycoprotein 72 (TAG-72).
Does Medicare cover A4642?
Medicare coverage for A4642 depends on medical necessity and applicable Local Coverage Determinations (LCDs). Used in nuclear medicine imaging to detect colorectal and ovarian cancer metastases. Injected intravenously and imaged 48-72 hours later. Helps identify occult malignancy. A physician order is typically required.
When is CPT A4642 used?
Used in nuclear medicine imaging to detect colorectal and ovarian cancer metastases. Injected intravenously and imaged 48-72 hours later. Helps identify occult malignancy.
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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.