86331 Immunodiffusion ouchterlony
Also known as: Ouchterlony test, double gel diffusion
Ouchterlony immunodiffusion test uses the Ouchterlony technique of double gel diffusion to identify specific antigens and antibodies through characteristic precipitation patterns.
In Plain Language
Antigen identification test; Immunologic gel diffusion
Clinical Context
Traditional immunological method for antibody and antigen detection using characteristic precipitation lines in agar gel. Now largely replaced by modern immunoassays.
RVU Information
CPT 86331 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 86331?
CPT 86331 (Immunodiffusion ouchterlony) is a Pathology & Lab code. Ouchterlony immunodiffusion test uses the Ouchterlony technique of double gel diffusion to identify specific antigens and antibodies through characteristic precipitation patterns.
Who uses CPT code 86331?
CPT 86331 is used by Immunology, Microbiology, Clinical Pathology. Traditional immunological method for antibody and antigen detection using characteristic precipitation lines in agar gel. Now largely replaced by modern immunoassays.
When is CPT 86331 used?
Traditional immunological method for antibody and antigen detection using characteristic precipitation lines in agar gel. Now largely replaced by modern immunoassays.
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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.