83519 Ria nonantibody
Also known as: radioimmunoassay non-antibody, RIA alternate method
Radioimmunoassay using non-antibody binding molecules or alternate capture systems for quantitation of analytes.
In Plain Language
radioactive measurement method
Clinical Context
Historical methodology for hormone and peptide assays using radioactive labeling. Now largely replaced by immunochemiluminescence but still used in specialized laboratories.
RVU Information
CPT 83519 does not have a physician work RVU assigned by CMS. Reimbursement for this code is determined by payer-specific fee schedules.
Billing & Documentation
Lab and pathology codes require an order from the treating provider with clinical indication. For molecular pathology and genetic testing, document the specific analytes tested and clinical rationale.
How This Code Compares
This code has a work RVU of 0.00, meaning it does not have a physician work component assigned by CMS. In the Pathology & Lab category, 94% of codes share this characteristic.
Specialties
Frequently Asked Questions
What is CPT code 83519?
CPT 83519 (Ria nonantibody) is a Pathology & Lab code. Radioimmunoassay using non-antibody binding molecules or alternate capture systems for quantitation of analytes.
Who uses CPT code 83519?
CPT 83519 is used by Pathology, Nuclear Medicine, Laboratory Medicine. Historical methodology for hormone and peptide assays using radioactive labeling. Now largely replaced by immunochemiluminescence but still used in specialized laboratories.
When is CPT 83519 used?
Historical methodology for hormone and peptide assays using radioactive labeling. Now largely replaced by immunochemiluminescence but still used in specialized laboratories.
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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.