84302 Assay of sweat sodium
Also known as: sweat sodium, sweat chloride test, CF test
Quantitative assay of sweat sodium concentration, typically from pilocarpine-induced sweat for cystic fibrosis diagnosis.
In Plain Language
cystic fibrosis test
Clinical Context
Gold standard for cystic fibrosis diagnosis; elevated chloride/sodium in sweat confirms defective salt reabsorption in CF patients.
RVU Information
CPT 84302 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 84302?
CPT 84302 (Assay of sweat sodium) is a Pathology & Lab code. Quantitative assay of sweat sodium concentration, typically from pilocarpine-induced sweat for cystic fibrosis diagnosis.
Who uses CPT code 84302?
CPT 84302 is used by Pediatrics, Pulmonology, Laboratory Medicine. Gold standard for cystic fibrosis diagnosis; elevated chloride/sodium in sweat confirms defective salt reabsorption in CF patients.
When is CPT 84302 used?
Gold standard for cystic fibrosis diagnosis; elevated chloride/sodium in sweat confirms defective salt reabsorption in CF patients.
Track This Code in RVU Edge
Log procedures, calculate wRVUs, and benchmark against national data — all in one app.
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.