84437 Assay of neonatal thyroxine
Also known as: newborn T4, neonatal thyroxine, screening T4
Quantitative assay of neonatal thyroxine (T4) concentration using newborn screening methodology.
In Plain Language
newborn thyroid screening
Clinical Context
Part of routine newborn screening for congenital hypothyroidism; abnormal results require prompt follow-up to prevent developmental delay.
RVU Information
CPT 84437 does not have a physician work RVU assigned by CMS. Reimbursement for this code is determined by payer-specific fee schedules.
Billing & Documentation
Lab and pathology codes require an order from the treating provider with clinical indication. For molecular pathology and genetic testing, document the specific analytes tested and clinical rationale.
How This Code Compares
This code has a work RVU of 0.00, meaning it does not have a physician work component assigned by CMS. In the Pathology & Lab category, 94% of codes share this characteristic.
Specialties
Frequently Asked Questions
What is CPT code 84437?
CPT 84437 (Assay of neonatal thyroxine) is a Pathology & Lab code. Quantitative assay of neonatal thyroxine (T4) concentration using newborn screening methodology.
Who uses CPT code 84437?
CPT 84437 is used by Pediatrics, Clinical Chemistry, Laboratory Medicine. Part of routine newborn screening for congenital hypothyroidism; abnormal results require prompt follow-up to prevent developmental delay.
When is CPT 84437 used?
Part of routine newborn screening for congenital hypothyroidism; abnormal results require prompt follow-up to prevent developmental delay.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.