84157 Assay of protein other
Also known as: body fluid protein, CSF protein, fluid protein
Quantitative assay of protein concentration in body fluids other than serum and urine (cerebrospinal fluid, synovial fluid, etc).
In Plain Language
body fluid protein test
Clinical Context
Evaluates specific body compartments for infection, inflammation, or malignancy; elevated CSF protein suggests infection or neural inflammation.
RVU Information
CPT 84157 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 84157?
CPT 84157 (Assay of protein other) is a Pathology & Lab code. Quantitative assay of protein concentration in body fluids other than serum and urine (cerebrospinal fluid, synovial fluid, etc).
Who uses CPT code 84157?
CPT 84157 is used by Clinical Chemistry, Pathology, Laboratory Medicine. Evaluates specific body compartments for infection, inflammation, or malignancy; elevated CSF protein suggests infection or neural inflammation.
When is CPT 84157 used?
Evaluates specific body compartments for infection, inflammation, or malignancy; elevated CSF protein suggests infection or neural inflammation.
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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.