Summary & Overview
CPT 84150: Prostaglandin Measurement in Urine Specimen
CPT code 84150 represents a laboratory measurement of prostaglandin levels in a patient specimen, commonly performed on random or 24-hour urine collections. This code matters nationally because prostaglandin assays support diagnosis and management across multiple clinical specialties, including nephrology, rheumatology, obstetrics/gynecology, and pain management. Accurate coding affects laboratory billing, clinical interpretation, and downstream care coordination.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The review outlines payer coverage patterns and common billing practices for laboratory prostaglandin testing and highlights how coverage policies can influence access to testing.
Readers will learn the clinical context for ordering CPT code 84150, typical sites of service and specimen collection, common billing considerations, and where to find policy guidance. Benchmarks and policy updates are summarized to help revenue cycle and clinical staff understand payer expectations and potential documentation requirements. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 84150 describes a laboratory assay performed by a clinical laboratory analyst to measure the concentration of a prostaglandin in a patient specimen, such as a random urine specimen or a 24-hour urine collection. This test quantifies prostaglandin levels to assist clinical evaluation related to inflammatory, renal, or reproductive pathway assessments.
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Service type: Clinical laboratory test (quantitative prostaglandin measurement)
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Typical site of service: Clinical laboratory or hospital laboratory; specimen collection may occur in outpatient clinics or inpatient settings depending on clinical need.
Clinical & Coding Specifications
Clinical Context
A 45-year-old patient presents to an outpatient endocrinology clinic with episodic flank pain and hematuria; the clinician orders measurement of urinary prostaglandin metabolites to evaluate for disorders of prostaglandin metabolism or to monitor response to therapy for suspected prostaglandin-mediated disease. A timed 24-hour urine collection is provided to the patient with labeling and requisition. The specimen is received in the hospital or reference laboratory clinical chemistry unit. A laboratory technologist or analyst performs the quantitative assay on the urine specimen using immunoassay or mass spectrometry-based methods and documents results in the laboratory information system. Results are reviewed by the laboratory director and finalized; the ordering provider reviews values and incorporates findings into the patient’s management plan, which may include further endocrine testing, medication adjustment, or referral to a specialist.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when only the professional component (interpretation/reporting) of the lab test is billed separately from the technical component. |
TC | Technical component |