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See a sample rate comparisonCPT 84439 Fee Schedule
Last Verified: October 2026
Healthcare providers use this code to document and receive reimbursement for visits that address moderate-level medical decision-making, often including multiple diagnoses or prescription management.
Thyroid Hormone (T4) Test, Test Of The Thyroid Hormone T4. Evaluating T4 Levels Can Confirm An Over- Or Underactive Thyroid Gland. The Balance Of T4 Is Important As It Helps Manage Enzymes That Make Energy For The Body.
| Key Fact | Detail |
|---|---|
| Service Type | Pathology and Laboratory Procedures Chemistry Procedures |
| Common Place of Service | 81 - Independent Laboratory 11 - Office |
| Common Modifiers | 26 - Professional component 90 - Reference Laboratory |
| Complexity Level | Low |
| Medicare Fee Schedule | $9.02 national lab fee schedule rate (2026) · View Medicare rates for 84439 |
| Medicaid Fee Schedule | $8.905 median of the 8 states in the free preview · View Medicaid rates for 84439 |
National average reimbursement for CPT 84439 by major payers:
$7.38
$6.47
$11.55
$13.24
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CPT 84439
5 of 25 sample ratesHigher to lower in this preview
Gayle Frazzetta
Montrose Wellness Center PC
$15.56Published rateAnn Treisman
Lake Fork Health Services District
$5.28Published rateIrina Pines
$3.78Published rateTotal Healthcare, Mercy Family Medicine Bayfield
Total Healthcare
$3.78Published rateJoan Maceachen
El Rio Santa Cruz Neighborhood Health Center Inc
$3.78Published rate
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Payer Contract Negotiation
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See a sample payer proposalCPT 84439 vs. Other Chemistry Procedures Codes
The CPT 84439 code is part of the Pathology and Laboratory Procedures services used for Chemistry Procedures. It represents a moderate-complexity encounter and is one of several codes that vary based on time spent, level of medical decision-making, and documentation requirements.
The CPT 84439 code involves more provider time and moderate medical decision-making, unlike lower-level codes that require less time and simpler assessments. It typically includes multiple diagnoses, medication management, or test interpretation, leading to higher reimbursement and more detailed documentation requirements.
| Code | Complexity | Description |
|---|---|---|
| 84436-CPT | Low | Thyroid Hormone (T4) Test, Test Of The Thyroid Hormone T4. Evaluating T4 Levels Can Confirm An Over- Or Underactive Thyroid Gland. The Balance Of T4 Is Important As It Helps Manage Enzymes That Make Energy For The Body. |
| 84437-CPT | Low | Thyroxine (T-4) Neonatal |
| 84439-CPT | Low | Thyroid Hormone (T4) Test, Test Of The Thyroid Hormone T4. Evaluating T4 Levels Can Confirm An Over- Or Underactive Thyroid Gland. The Balance Of T4 Is Important As It Helps Manage Enzymes That Make Energy For The Body. |
| 84442-CPT | Low | Thyroid Binding Hormone Test, Test Of Thyroxine (T4) A Binding Hormone Needed For Transporting Thyroid Hormone Throughout The Body. The Balance Of T4 And Tbg Is Important For Proper Thyroid Gland Function. The Test Helps Evaluate And Diagnose Thyroid Gland Problems. |
What is a fee schedule?
A fee schedule is a list of fixed prices that healthcare providers charge for specific services, including CPT 84439. These prices vary depending on payer type (Medicare, Medicaid, private insurance), geographic location, and provider contracts.
Understanding the 84439 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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Frequently Asked Questions
To find out the cost of a specific medical procedure, especially one defined by a CPT code, you can use online tools that provide fee schedule lookups. For a detailed search based on CPT code and your specific location, you can check Payerprice. They offer a fee schedule lookup tool to help you understand potential costs for various services.
CPT stands for Current Procedural Terminology. CPT codes are a set of medical codes used by healthcare professionals to report medical, surgical, and diagnostic services and procedures to entities like insurance companies. They are crucial for consistent communication about medical services and for billing purposes.
Medical bills can be complex, often including various codes (like CPT codes for services and ICD-10 codes for diagnoses), dates of service, provider names, and charges. To better understand the cost breakdown of specific procedures listed on your bill, you can use tools like Payerprice's fee schedule lookup, where you can search by CPT code and location to see typical charges for those services. Additionally, always review the Explanation of Benefits (EOB) from your insurance company, which details what services were covered and how much your plan paid.
Prices for the same medical service can vary significantly due to several factors, including the healthcare provider's negotiation with insurance companies, the facility type (e.g., hospital vs. outpatient clinic), geographical location, the complexity of the patient's case, and the technology or specialists involved. Transparency tools like Payerprice can help you compare costs for specific procedures in different locations, allowing you to see this variation firsthand.
If you believe your medical bill is too high, there are several steps you can take: 1. **Review the bill carefully:** Check for any errors, duplicate charges, or services you didn't receive. 2. **Contact your provider's billing department:** Ask for an itemized bill and an explanation of all charges. 3. **Compare costs:** Use tools like Payerprice's fee schedule lookup to search with the CPT codes from your bill and your location to see what typical charges are for those services in your area. This can give you leverage in negotiations. 4. **Contact your insurance company:** Understand what your plan covers and why certain charges might not have been fully paid. 5. **Negotiate:** Based on your research (including data from Payerprice), you can negotiate with the provider for a lower price or a payment plan.