CPT code 0178U designates a Proprietary Laboratory Analyses (PLA) test: the VeriMAP Peanut Sensitivity – Bead–based Epitope Assay from AllerGenis™ Clinical Laboratory. This specialized blood test maps patient-specific peanut protein epitopes using a bead–based microarray immunoassay and reports the minimum dose of peanut protein capable of triggering an allergic reaction in highly sensitized individuals. The code is significant nationally because it identifies a single-manufacturer diagnostic assay with potential implications for allergy management, laboratory billing, and coverage policy.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise account of what the code represents, the clinical context of epitope mapping for peanut allergy, and which major payers are part of the coverage landscape. The publication outlines expected service settings, common modifiers associated with lab billing, and notes where input data are not available for specific taxonomies, ICD-10 links, or related codes.

This summary prepares payers, billing professionals, and clinical laboratory managers to understand the test’s purpose, the coding designation as a PLA, and where to look for payer-specific coverage policies and reimbursement details.