84133 Assay of urine potassium
Also known as: urine potassium, 24-hour potassium, urinary K+
Quantitative assay of urine potassium concentration, reflecting potassium excretion and renal function.
In Plain Language
urine potassium level test
Clinical Context
Evaluates potassium balance, renal function, and electrolyte homeostasis; used to diagnose causes of hypokalemia or hyperkalemia.
RVU Information
CPT 84133 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 84133?
CPT 84133 (Assay of urine potassium) is a Pathology & Lab code. Quantitative assay of urine potassium concentration, reflecting potassium excretion and renal function.
Who uses CPT code 84133?
CPT 84133 is used by Clinical Chemistry, Pathology, Nephrology. Evaluates potassium balance, renal function, and electrolyte homeostasis; used to diagnose causes of hypokalemia or hyperkalemia.
When is CPT 84133 used?
Evaluates potassium balance, renal function, and electrolyte homeostasis; used to diagnose causes of hypokalemia or hyperkalemia.
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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.