Summary & Overview
CPT 0251U: Hepcidin ELISA Assay for Iron Therapy Evaluation
CPT code 0251U denotes a Proprietary Laboratory Analyses (PLA) test for the Intrinsic Hepcidin IDxTM Test, an ELISA that measures hepcidin in serum or plasma to inform clinical decisions related to iron therapy. As a PLA code, 0251U applies specifically to a single manufacturer’s proprietary assay, which matters nationally because PLA codes clarify billing and tracking for unique diagnostics and support precision medicine and targeted laboratory reporting. The code’s designation helps payers, laboratories, and clinicians identify this specific hepcidin assay amid a growing menu of specialized tests.
Key payers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna, UnitedHealthcare, and Medicare. Readers will find a compact briefing on clinical context for hepcidin testing, the service setting and laboratory nature of the assay, and what to expect when encountering a PLA-coded diagnostic in billing workflows. The publication summarizes payer coverage considerations, typical use cases for evaluating iron therapy, and operational implications for laboratories and providers when a single-manufacturer PLA code is involved.
This overview is intended for national audiences including lab directors, coding and billing staff, clinicians ordering iron-related diagnostics, and policy analysts tracking proprietary diagnostic coding. Data not available in the input: specific payer coverage policies, associated taxonomies, ICD-10 diagnoses, related codes, and detailed service-line billing parameters.
Billing Code Overview
CPT code 0251U is a Proprietary Laboratory Analyses (PLA) code for the Intrinsic Hepcidin IDxTM Test from Intrinsic LifeSciencesTM LLC. The test is an enzyme–linked immunosorbent assay (ELISA) that uses a monoclonal antibody to bind to hepcidin in serum or plasma specimens to evaluate hepcidin levels for clinical applications related to iron therapy.
Service type: Laboratory test (proprietary PLA diagnostic assay).
Typical site of service: Clinical laboratory or reference laboratory processing serum or plasma specimens.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult with unexplained anemia, iron-refractory iron deficiency, or chronic inflammatory disease being evaluated for appropriate iron therapy. The clinician (hematologist, nephrologist, or primary care physician) orders the Intrinsic Hepcidin IDxTM Test (0251U) to quantify serum or plasma hepcidin to guide decisions about oral versus parenteral iron, assess functional iron deficiency in chronic kidney disease or inflammatory states, or evaluate suspected hepcidin-mediated iron sequestration. A phlebotomy technician collects a serum or plasma specimen per laboratory requirements and ships it to the performing laboratory (Intrinsic LifeSciences LLC). The laboratory processes the specimen using an ELISA with a monoclonal antibody specific to hepcidin, reports a quantitative result with interpretive guidance, and provides the result electronically to the ordering provider. Typical site of service is an outpatient clinic, hospital outpatient lab, or reference laboratory; specimen collection occurs in an ambulatory phlebotomy setting, inpatient ward, or dialysis center depending on the patient.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | When billing for the professional interpretation component separately if applicable. |