80420 Dexamethasone panel
Also known as: dexamethasone suppression test, DST
Dexamethasone suppression panel measuring cortisol response to low-dose or high-dose dexamethasone administration.
In Plain Language
cortisol suppression test
Clinical Context
Used to diagnose Cushing syndrome and evaluate hypothalamic-pituitary-adrenal axis function. Important in endocrinology evaluation.
RVU Information
CPT 80420 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 80420?
CPT 80420 (Dexamethasone panel) is a Pathology & Lab code. Dexamethasone suppression panel measuring cortisol response to low-dose or high-dose dexamethasone administration.
Who uses CPT code 80420?
CPT 80420 is used by Endocrinology, Psychiatry, Laboratory Medicine. Used to diagnose Cushing syndrome and evaluate hypothalamic-pituitary-adrenal axis function. Important in endocrinology evaluation.
When is CPT 80420 used?
Used to diagnose Cushing syndrome and evaluate hypothalamic-pituitary-adrenal axis function. Important in endocrinology evaluation.
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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.