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See a sample rate comparisonCPT 83918 Fee Schedule
Medicare rates as of January 2026
CPT 83918 is classified under Pathology and Laboratory Procedures, in the Chemistry Procedures subgroup.
Testing For Organic Acids, The Test Measures The Quantity Of An Organic Acid (Such As Fatty Acids Sugars Yeasts And Bacteria) In A Urine Sample.
| 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 | $23.60 national lab fee schedule rate (2026) · View Medicare rates for 83918 |
| Medicaid Fee Schedule | $21.71 median of the 8 states in the free preview · View Medicaid rates for 83918 |
National average reimbursement for CPT 83918 by major payers:
$18.76
BCBS / Anthem
$14.30
UnitedHealthcare
$26.71
Aetna
$33.57
Cigna
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CPT 83918
5 of 25 sample ratesHigher to lower in this preview
Restorative Health Rehabilitation Inc
$40.00Published rateChu Chen
Merrimack Valley Pediatric Associates, Inc.
$23.60Published ratePrisma Health-Upstate, Prisma Health Cancer Inst-Grove
Prisma Health - Upstate
$21.23Published rateChristopher Raio
St Francis Hospital
$14.16Published rateParagon Hospitalist, LLC
Paragon Hospitalist LLC
$9.78Published rate
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Payer Contract Negotiation
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See a sample payer proposalCPT 83918 vs. Other Chemistry Procedures Codes
The table lists codes related to 83918. Select one to see its fee schedule.
| Code | Complexity | Description |
|---|---|---|
| 83789-CPT | Low | Mass Spectrometry Qual Quan, Mass Spectrometry And Tandem Mass Spectrometry Eg Ms Ms Ms Maldi Ms Tof Qtof Non Drug Analyte S Not Elsewhere Specified Qualitative Or Quantitative Each Specimen |
| 83918-CPT | Low | Testing For Organic Acids, The Test Measures The Quantity Of An Organic Acid (Such As Fatty Acids Sugars Yeasts And Bacteria) In A Urine Sample. |
| 83921-CPT | Low | Testing For Organic Acids, The Test Measures The Quantity Of An Organic Acid (Such As Fatty Acids Sugars Yeasts And Bacteria) In A Urine Sample. |
| 83930-CPT | Low | Test Of Blood Density, Test To Measure The Density Of Particles In The Blood Which Are Responsible For Retaining Or Secreting Water From The Body. |
What is a fee schedule?
A fee schedule is a list of fixed prices that healthcare providers charge for specific services, including CPT 83918. These prices vary depending on payer type (Medicare, Medicaid, private insurance), geographic location, and provider contracts.
Understanding the 83918 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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