Summary & Overview
CPT 83150: Homovanillic Acid (HVA) Urine Assay
CPT code 83150 describes a laboratory assay measuring homovanillic acid (HVA) in urine, a key metabolite of dopamine and catecholamines. This quantitative urine test is used in clinical evaluation of disorders involving catecholamine-secreting tissues and altered dopamine metabolism, making it relevant across neurology, endocrinology, and oncology practices. Nationally, accurate coding and consistent coverage are important for appropriate lab reimbursement and clinical decision support.
Key payers referenced in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context for HVA testing, typical sites of service where the assay is performed, and the payer landscape affecting coverage and billing practice. The publication summarizes common billing modifiers associated with laboratory services and highlights areas where policy updates or documentation practices can affect claims processing.
This report provides practical benchmarks for utilization and reimbursement patterns where available, clarifies the clinical indications linked to the assay, and outlines administrative considerations for coding CPT code 83150. Data not available in the input are explicitly indicated where relevant.
Billing Code Overview
CPT code 83150 measures homovanillic acid (HVA), a primary metabolite of the neurotransmitter dopamine and of catecholamine hormones, typically analyzed in a urine specimen. The test quantifies HVA levels to assess dopamine metabolism and to support evaluation of disorders related to catecholamine production.
Service type: Laboratory test — quantitative urine metabolite assay
Typical site of service: Clinical laboratory or hospital laboratory, with specimen collection in outpatient clinics or inpatient settings
Clinical & Coding Specifications
Clinical Context
A patient, typically a child or adult with symptoms suggestive of a catecholamine-secreting tumor or a central nervous system dopamine metabolism disorder, provides a timed urine specimen for measurement of homovanillic acid (HVA) using 83150. A common scenario is a pediatric patient with developmental regression, seizures, or failure to thrive when a metabolic or neurotransmitter disorder is suspected, or an adult with hypertension, episodic headaches, palpitations, and diaphoresis when evaluation for pheochromocytoma or neuroblastoma is considered. The clinical workflow: the ordering clinician documents the indication and orders 83150; the patient collects a spot or 24-hour urine sample per lab instructions; the specimen is received by the clinical laboratory; a laboratory technologist performs the HVA assay and reports a quantitative result to the clinician; the clinician interprets the result in context of concurrent catecholamine or vanillylmandelic acid (VMA) testing, imaging, and clinical findings.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | When billing separately for the professional interpretation of the test if the laboratory provides a technical component only |