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See a sample rate comparisonCPT 84105 Fee Schedule
Medicare rates as of January 2026
CPT 84105 is classified under Pathology and Laboratory Procedures, in the Chemistry Procedures subgroup.
Phosphorus Trace Element Test, The Urine Phosphorus Test Checks For Calcium Absorption And Kidney Function. Phosphorus Is A Trace Element Required For Proper Digestion Bone Formation And Kidney Health. It Aids The Balance Of Calcium Potassium And Glucose.
| Key Fact | Detail |
|---|---|
| Service Type | Pathology and Laboratory Procedures Chemistry Procedures |
| Common Place of Service | 81 - Independent Laboratory 11 - Office |
| Common Modifiers | 90 - Reference Laboratory 26 - Professional component |
| Complexity Level | Low |
| Medicare Fee Schedule | $5.78 national lab fee schedule rate (2026) · View Medicare rates for 84105 |
| Medicaid Fee Schedule | $5.71 median of the 8 states in the free preview · View Medicaid rates for 84105 |
National average reimbursement for CPT 84105 by major payers:
$4.87
BCBS / Anthem
$3.87
UnitedHealthcare
$6.21
Aetna
$8.48
Cigna
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CPT 84105
5 of 25 sample ratesHigher to lower in this preview
Da Pediatric Rehabilitation
$55.00Published rateChristopher Raio
Good Samaritan Hosptial Medical Center
$7.09Published rateColumbia Medical Center Of Plano Subsidiary Lp, Medical City Plano
$5.78Published rateChristopher Raio
Good Samaritan Hosptial Medical Center
$3.47Published rateSt Davids Healthcare Partnership Lp LLP, Round Rock Medical Center
Lone Star Circle Of Care
$2.43Published rate
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See a sample payer proposalCPT 84105 vs. Other Chemistry Procedures Codes
The table lists codes related to 84105. 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. |
| 84100-CPT | Low | Phosphorus Trace Element Test, The Phosphorus Test Checks For Calcium Absorption And Kidney Function. Phosphorus Is A Trace Element Required For Proper Digestion Bone Formation And Kidney Health. It Aids The Balance Of Calcium Potassium And Glucose. |
| 84105-CPT | Low | Phosphorus Trace Element Test, The Urine Phosphorus Test Checks For Calcium Absorption And Kidney Function. Phosphorus Is A Trace Element Required For Proper Digestion Bone Formation And Kidney Health. It Aids The Balance Of Calcium Potassium And Glucose. |
| 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. |
What is a fee schedule?
A fee schedule is a list of fixed prices that healthcare providers charge for specific services, including CPT 84105. These prices vary depending on payer type (Medicare, Medicaid, private insurance), geographic location, and provider contracts.
Understanding the 84105 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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