84182 Protein western blot test
Also known as: protein western blot, immunoblot, WB protein
Western blot assay specifically for protein detection and characterization using immunological methods.
In Plain Language
specialized protein identification test
Clinical Context
Used to confirm antibodies (HIV, Lyme disease), detect specific proteins (prion disease), or validate protein expression in research.
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 84182?
CPT 84182 (Protein western blot test) is a Pathology & Lab code. Western blot assay specifically for protein detection and characterization using immunological methods.
Who uses CPT code 84182?
CPT 84182 is used by Molecular Pathology, Immunology, Laboratory Medicine. Used to confirm antibodies (HIV, Lyme disease), detect specific proteins (prion disease), or validate protein expression in research.
When is CPT 84182 used?
Used to confirm antibodies (HIV, Lyme disease), detect specific proteins (prion disease), or validate protein expression in research.
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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.