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See a sample rate comparisonCPT 84133 Fee Schedule
Medicare rates as of January 2026
CPT 84133 is classified under Pathology and Laboratory Procedures, in the Chemistry Procedures subgroup.
Potassium Electrolyte Test, Potassium Is An Electrolyte Critical For Heart And Skeletal Muscles. The Blood Test Measures Overall Potassium. The Urine Test Verifies High Levels Related To Kidney Disease.
| Key Fact | Detail |
|---|---|
| Service Type | Pathology and Laboratory Procedures Chemistry Procedures |
| Common Place of Service | 81 - Independent Laboratory 21 - Inpatient Hospital |
| Common Modifiers | 26 - Professional component 90 - Reference Laboratory |
| Complexity Level | Low |
| Medicare Fee Schedule | $4.73 national lab fee schedule rate (2026) · View Medicare rates for 84133 |
| Medicaid Fee Schedule | $4.405 median of the 8 states in the free preview · View Medicaid rates for 84133 |
National average reimbursement for CPT 84133 by major payers:
$3.99
BCBS / Anthem
$3.20
UnitedHealthcare
$5.32
Aetna
$6.87
Cigna
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CPT 84133
5 of 25 sample ratesHigher to lower in this preview
Chu Chen
Merrimack Valley Pediatric Associates, Inc.
$10.41Published rateChristopher Raio
Mercy Medical Center
$5.62Published rateClhg, Minden Medical Center
$4.73Published ratePrisma Health-Upstate, Prisma Health Cancer Inst-Faris
Prisma Health - Upstate
$4.26Published rateSunrise Home Health Care Inc.
Sunrise Home Health Care Inc
$2.40Published rate
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See a sample payer proposalCPT 84133 vs. Other Chemistry Procedures Codes
The table lists codes related to 84133. Select one to see its fee schedule.
| Code | Complexity | Description |
|---|---|---|
| 83935-CPT | Low | Test Of Urine Density, Test To Measure The Density Of Particles In The Urine Which Are Responsible For Retaining Or Secreting Water From The Body. |
| 83945-CPT | Low | Confirm Kidney Stone Material, A 24-Hour Urine Collection Is Measured For The Amount Of Oxalate. This Helps To Indicate The Correct Preventive Treatment For Kidney Stones Such As Dietary Restrictions. |
| 84132-CPT | Low | Potassium Electrolyte Test, Potassium Is An Electrolyte Critical For Heart And Skeletal Muscles. The Blood Test Measures Overall Potassium. The Urine Test Verifies High Levels Related To Kidney Disease. |
| 84133-CPT | Low | Potassium Electrolyte Test, Potassium Is An Electrolyte Critical For Heart And Skeletal Muscles. The Blood Test Measures Overall Potassium. The Urine Test Verifies High Levels Related To Kidney Disease. |
What is a fee schedule?
A fee schedule is a list of fixed prices that healthcare providers charge for specific services, including CPT 84133. These prices vary depending on payer type (Medicare, Medicaid, private insurance), geographic location, and provider contracts.
Understanding the 84133 fee schedule helps patients estimate costs and providers optimize billing for accurate reimbursements.
Factors that affect fee schedules
Medicare & Medicaid Rates
Government-set reimbursement amounts
Private Insurance Rates
Negotiated rates between providers and insurance companies
Geographic Location
Costs may be higher in urban areas.
Provider Type
Hospital providers may have different rates than private practice.
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