84481 cpt code. Clinical Policy: Thyroid Hormones and Insulin Testing in Pediatrics Reference Number: CP. Only a small fraction of circulating T3 is derived from the thyroid. It is used, primarily in concert with measurement of thyroid-stimulating hormone (TSH, test code 899) and free T4 (FT4 UNACCEPTABLE SPECIMENS Do not use heat-inactivated samples. Measuring the free form of T3 provides valuable insight into a patient’s metabolic state and helps clinicians fine-tune diagnoses and treatment plans for thyroid disorders. 300-400 new vignettes are added each year Search all medical codes 84481 Triiodothyronine T3; free CPT4 code Name of the Procedure: Triiodothyronine T3, Free (Free T3 Test) Summary A Free T3 Test measures the level of triiodothyronine (T3) in your blood to evaluate thyroid function. REFERENCE RANGE 1. 1 pg/mL CPT CODE 84481 INFORMATION Triiodothyronine (T3) is the biologically active form of thyroid hormone that is responsible for the effects of thyroid hormones on the various target organs. Purpose CPT® code 84481 identifies laboratory analysis of free triiodothyronine (T3), a crucial component of thyroid function assessment. com Quest, Quest Diagnostics, any associated logos, and all associated Quest Diagnostics registered or unregistered trademarks are the property of Quest Diagnostics. Nov 25, 2002 · Coding Analyses for Labs (CALs) This NCD has been or is currently being reviewed under the National Coverage Determination process. QuestDiagnostics. 154 Coding Implications Date of Last Revision: 09/23 Revision Log The Current Procedural Terminology (CPT ®) code 84480 as maintained by American Medical Association, is a medical procedural code under the range - Chemistry Procedures. 9 – 5. The Current Procedural Terminology (CPT ®) code 84481 as maintained by American Medical Association, is a medical procedural code under the range - Chemistry Procedures. Test Code: 34429 CPT Code (s): 84481 Methodology: Immunoassay (IA) Clinical Significance: T3, Free - The T3, Free (FT3) test measures serum triiodothyronine (T3) not bound to thyroid hormone-binding proteins (thyroid hormone-binding globulin [TBG], transthyretin, albumin). com Quest®, Quest Diagnostics®, any associated logos, and all associated Quest Diagnostics registered or unregistered trademarks are the property of Quest Diagnostics. It also explains the indications, limitations, and frequency of these tests. The codes reflect our interpretation of CPT coding requirements based upon AMA guidelines published annually. Where appropriate, there are also Pre- and Post-service descriptions. Triiodothyronine (T 3), Free Test Number 010389 CPT 84481 Synonyms Free T 3 T 3, Free Share Print Include LOINC® in print Test Details Specimen Requirements LOINC® Mar 1, 2026 · CPT® Code 84481 in section: Triiodothyronine T3 CPT® Vignettes illustrate code use through sample patient examples. Note: This assay should only be ordered on patients 1 year of age or older. Unlike Total T3 tests, it specifically measures the unbound, biologically active T3. CPT coding is the sole responsibility of the billing party. We would like to show you a description here but the site won’t allow us. Vignettes are reviewed annually and updated when necessary. Inclusion or exclusion of a procedure, diagnosis or device code (s) does not constitute or imply member coverage or provider reimbursement policy. Every vignette contains a Clinical Example/Typical Patient and a description of Procedure/Intra-service. The following are existing associations with CALs, from the Coding Analyses for Labs database. MP. The web page provides the Medicare coverage policy and the ICD10 codes for thyroid function tests with CPT codes 84436, 84439, 84443, and 84479. Last updated: 10/01/25 QuestDiagnostics. ARUP strongly recommends that clients confirm CPT codes with their Medicare administrative contractor, as requirements may differ. CPT codes are provided only as guidance to assist clients with billing. Health Lab << Back To Search Results If the TSH is low and the T4, Free is either normal or low, then T3, Free will be performed at an additional charge (CPT code (s): 84481). . Please direct any questions regarding coding to the payer being billed. Claims should be coded appropriately according to industry standard coding guidelines including, but not limited to: Uniform Billing Editor, American Medical Association, Current Procedural Terminology, CPT® Assistant, Healthcare Common Procedure Coding System, ICD-10 CM and PCS, National Drug Codes, Diagnosis Related Group guidelines, Centers Oct 1, 2025 · Coding The following codes for treatments and procedures applicable to this guideline are included below for informational purposes. Triiodothyronine (T 3), Free Test Number 010389 CPT 84481 Synonyms Free T 3 T 3, Free Share Print Include LOINC® in print Test Details Specimen Requirements LOINC® CPT® code 84481 identifies laboratory analysis of free triiodothyronine (T3), a crucial component of thyroid function assessment. jhmjv vaiqs pvf usrahtmk rifk lawyv eumisq czzwp wey epqfo