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See a sample rate comparisonCPT 84166 Fee Schedule
Medicare rates as of January 2026
CPT 84166 is classified under Pathology and Laboratory Procedures, in the Chemistry Procedures subgroup.
Protein Pattern Test, Proteins Are Found In Blood Urine And Spinal Fluid. The Distribution Of Those Proteins -- Their Patterns -- Give Clues That Aid Diagnosis.
| Key Fact | Detail |
|---|---|
| Service Type | Pathology and Laboratory Procedures Chemistry Procedures |
| Common Place of Service | 81 - Independent Laboratory 22 - On Campus Outpatient Hospital |
| Common Modifiers | 26 - Professional component 90 - Reference Laboratory |
| Complexity Level | Low |
| Medicare Fee Schedule | $17.83 national lab fee schedule rate (2026) · View Medicare rates for 84166 |
| Medicaid Fee Schedule | $16.625 median of the 8 states in the free preview · View Medicaid rates for 84166 |
National average reimbursement for CPT 84166 by major payers:
$19.53
BCBS / Anthem
$12.70
UnitedHealthcare
$22.41
Aetna
$38.08
Cigna
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CPT 84166
5 of 25 sample ratesHigher to lower in this preview
Jaskaran Sethi
H Lee Moffitt Cancer Ctr & Res Inst Life Time Cancer Scrn Ctr Inc
$11.47Published rateJuan Hernandez Prera
H Lee Moffitt Cancer Ctr & Res Inst Life Time Cancer Scrn Ctr Inc
$11.47Published rateSandra Bryant
H Lee Moffitt Cancer Ctr & Res Inst Life Time Cancer Scrn Ctr Inc
$9.76Published rateDaniel Joe
H Lee Moffitt Cancer Ctr & Res Inst Life Time Cancer Scrn Ctr Inc
$9.09Published rateMichael Hauk
H Lee Moffitt Cancer Ctr & Res Inst Life Time Cancer Scrn Ctr Inc
$9.09Published rate
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See a sample payer proposalCPT 84166 vs. Other Chemistry Procedures Codes
The table lists codes related to 84166. Select one to see its fee schedule.
| Code | Complexity | Description |
|---|---|---|
| 84134-CPT | Low | Malnutrition Testing, The Test Measures Prealbumin A Protein Related To Malnutrition. Large Amounts Of Prealbumin Usually Indicate An Imbalance. |
| 84155-CPT | Low | Total Blood Protein Test, The Total Blood Protein Test Measures The Amount Of Proteins Present In A Blood Sample. Typically These Are Proteins Made By The Liver Or Immune System. |
| 84156-CPT | Low | Total Urine Protein Test, The Total Urine Protein Test Helps To Assess Kidney Health By Measuring The Level Of Protein Present In The Kidneys. |
| 84166-CPT | Low | Protein Pattern Test, Proteins Are Found In Blood Urine And Spinal Fluid. The Distribution Of Those Proteins -- Their Patterns -- Give Clues That Aid Diagnosis. |
What is a fee schedule?
A fee schedule is a list of fixed prices that healthcare providers charge for specific services, including CPT 84166. These prices vary depending on payer type (Medicare, Medicaid, private insurance), geographic location, and provider contracts.
Understanding the 84166 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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