86334 Immunofix e-phoresis serum
Also known as: Immunofix, immunofixation electrophoresis
Immunofixation electrophoresis (immunofix) of serum separates proteins by electrophoresis and uses specific antibodies to identify immunoglobulin and light chain abnormalities.
In Plain Language
Advanced protein test; Myeloma confirmation
Clinical Context
Reflex test after serum protein electrophoresis to characterize monoclonal proteins and light chains in multiple myeloma and related disorders.
RVU Breakdown
| Work RVU | 0.37 |
| Total RVU | 0.37 |
Est. Medicare Payment
National estimate based on 2026 CMS PFS Conversion Factor ($33.40). Actual payment varies by locality (GPCI adjustment).
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
With a work RVU of 0.37, this code ranks in the 29th percentile among Pathology & Lab codes — 1.8x below the median (0.68). The highest wRVU in this category is 2.78.
Specialties
Frequently Asked Questions
What is CPT code 86334?
CPT 86334 (Immunofix e-phoresis serum) is a Pathology & Lab code. Immunofixation electrophoresis (immunofix) of serum separates proteins by electrophoresis and uses specific antibodies to identify immunoglobulin and light chain abnormalities.
Who uses CPT code 86334?
CPT 86334 is used by Hematology, Clinical Pathology, Hemato-Oncology. Reflex test after serum protein electrophoresis to characterize monoclonal proteins and light chains in multiple myeloma and related disorders.
When is CPT 86334 used?
Reflex test after serum protein electrophoresis to characterize monoclonal proteins and light chains in multiple myeloma and related disorders.
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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.