How does CPT 84443 compare to other chemistry procedure codes?

The CPT 84443 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. Unlike lower-level codes such as 84233 (Receptor Assay; Estrogen) or 84234 (Receptor Assay; Progesterone), CPT 84443 involves more provider time and moderate medical decision-making, often including multiple diagnoses, medication management, or test interpretation, leading to higher reimbursement and more detailed documentation requirements.

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CPT 84443 Fee Schedule

Q: What is CPT code 84443?

CPT code 84443 represents a Thyroid Stimulating Hormone (Tsh) test, classified under Pathology and Laboratory Procedures and Chemistry Procedures. It 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.

Last Verified: July 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 Test, This Test Measures Thyroid Stimulating Hormone (Tsh) Which Can Be An Indicator Of An Over- Or Underactive Thyroid Gland. It Can Also Be Used To Monitor The Effectiveness Of Thyroid Gland Treatment.

Key Fact	Detail
Service Type	Chemistry Procedures Pathology and Laboratory Procedures
Common Place of Service	81 - Independent Laboratory 11 - Office
Common Modifiers	None 26 - Professional component QW - CLIA Waived Tests
Complexity Level	Low
Medicare Fee Schedule	View Medicare rates for 84443

National average reimbursement for CPT 84443 by major payers:

$14.66

$12.03

$21.08

$24.42

Preview provider-level rates for...

For billing codeCPT 84443

Payer	Code	Rate	NPI	Tax ID	State	Specialty
United	84443	$10.35	1982085205 - ANGEL TEJADA	863350628 - (TX) ADM HEALTH SERVICES PLLC	TX	Internal Medicine Physician (207R00000X)
United	84443	$10.10	1275613796 - CHRISTOPHER STAFFORD	743199629	CA	Critical Care Medicine (Internal Medicine) Physician (207RC0200X)
United	84443	$21.17	1578745113 - SAPNA JAISWAL MD PA	202598364 - (TX) SAPNAJAISWALMDPA	TX	Family Medicine Physician (207Q00000X)
United	84443	$12.43	1700923059 - CECILIA HIRSCH	900733283	CO	Cardiovascular Disease Physician (207RC0000X)
United	84443	$10.07	1942218359 - JERRY RODGERS	752616977 - CHRISTUS TRINITY CLINIC	TX	Family Medicine Physician (207Q00000X)
United	84443	$10.00	1861730939 - FAMILY HEALTH OF SOUTH TEXAS, PA, MISSION TRAILS FAMILY HEALTH	460792228 - (TX) FAMILY HEALTH OF SOUTH TEXAS PA	TX	Family Medicine Physician (207Q00000X)
United	84443	$7.05	1235826173 - LVWELL PLLC	874744318 - (TX) LVWELL PLLC	TX	Internal Medicine Physician (207R00000X)
United	84443	$21.95	1548596828 - RUTH PAN	920922704	TX	Internal Medicine Physician (207R00000X)
United	84443	$19.25	1740320670 - RICHARD COOKE	611729294 - (CA) REGENTS OF THE UNIVERSITY OF CALIFORNIA	CA	Family Medicine Physician (207Q00000X)
United	84443	$10.10	1255560371 - SUDHAGAR THANGARASU	752668018	TX	Internal Medicine Physician (207R00000X)
United	84443	$10.00	1427084763 - PAULA REQUEIJO	474038606 - (TX) CH SPECIALTY SERVICES TX PLLC	TX	Internal Medicine Physician (207R00000X)
United	84443	$9.63	1568445229 - MARY CHEN	352185328 - (CA) MARY CHEN M.D., INC.	CA	Internal Medicine Physician (207R00000X)
United	84443	$56.45	1396993291 - BENJAMIN JOHNSON	870737749	CA	Internal Medicine Physician (207R00000X)
United	84443	$7.05	1558854299 - VICTORIANO VALDEZ	200167479	TX	Internal Medicine Physician (207R00000X)
United	84443	$9.85	1487748364 - RICHARD KEECH	205038692 - GAGE MEDICAL CLINIC INC	CA	Family Medicine Physician (207Q00000X)
United	99202	$100.00	1234567890	1234567890	CA	Cardiologist
United	99202	$100.00	1234567890	1234567890	CA	Cardiologist
United	99202	$100.00	1234567890	1234567890	CA	Cardiologist
United	99202	$100.00	1234567890	1234567890	CA	Cardiologist
United	99202	$100.00	1234567890	1234567890	CA	Cardiologist
United	99202	$100.00	1234567890	1234567890	CA	Cardiologist
United	99202	$100.00	1234567890	1234567890	CA	Cardiologist
United	99202	$100.00	1234567890	1234567890	CA	Cardiologist
United	99202	$100.00	1234567890	1234567890	CA	Cardiologist
United	99202	$100.00	1234567890	1234567890	CA	Cardiologist

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CPT 84443 vs. Other Pathology and Laboratory Procedures Codes

The CPT 84443 code is part of the Chemistry Procedures services used for Pathology and Laboratory 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 84443 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
84233-CPT	Low	Breast Cancer Therapy Test, The Test Checks How A Sample Of Tissue (Biopsy) Responds To Chemotherapy Or Hormone Therapy That Has Been Proposed To Treat Breast Cancer.
84234-CPT	Low	Cancer Treatment Assessment, Testing The Receptive Ability Of The Hormone Progesterone Is Used To Assess The Likelihood Of Cancer Treatment Effectiveness. Treatment For Several Types Of Cancer May Be Evaluated With This Test.
84260-CPT	Low	Serotonin Test, This Test Evaluates Either A Blood Or Spinal Fluid Sample For Serotonin. The Test Is Used To Help In Diagnosis Of Severe Depression Or Intestinal Tumors That Affect Serotonin Levels.
84443-CPT	Low	Thyroid Hormone Test, This Test Measures Thyroid Stimulating Hormone (Tsh) Which Can Be An Indicator Of An Over- Or Underactive Thyroid Gland. It Can Also Be Used To Monitor The Effectiveness Of Thyroid Gland Treatment.

What is a fee schedule?

A fee schedule is a list of fixed prices that healthcare providers charge for specific services, including CPT 84443. These prices vary depending on payer type (Medicare, Medicaid, private insurance), geographic location, and provider contracts.

Understanding the 84443 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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