84588 Assay of vasopressin
Also known as: ADH test, antidiuretic hormone assay, vasopressin
Quantitative assay of vasopressin (antidiuretic hormone/ADH) in serum or plasma, measured by radioimmunoassay or immunoassay to evaluate water-electrolyte balance and syndrome of inappropriate ADH secretion.
In Plain Language
water balance hormone test; SIADH screening
Clinical Context
Evaluates syndrome of inappropriate ADH secretion (SIADH), diabetes insipidus, and osmolality disorders; elevated ADH causes fluid retention and hyponatremia.
RVU Information
CPT 84588 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 84588?
CPT 84588 (Assay of vasopressin) is a Pathology & Lab code. Quantitative assay of vasopressin (antidiuretic hormone/ADH) in serum or plasma, measured by radioimmunoassay or immunoassay to evaluate water-electrolyte balance and syndrome of inappropriate ADH secretion.
Who uses CPT code 84588?
CPT 84588 is used by Clinical Pathology, Endocrinology, Internal Medicine. Evaluates syndrome of inappropriate ADH secretion (SIADH), diabetes insipidus, and osmolality disorders; elevated ADH causes fluid retention and hyponatremia.
When is CPT 84588 used?
Evaluates syndrome of inappropriate ADH secretion (SIADH), diabetes insipidus, and osmolality disorders; elevated ADH causes fluid retention and hyponatremia.
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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.