CPT code 84207 represents a quantitative laboratory assay for pyridoxal 5'-phosphate (PLP), the biologically active form of vitamin B6, typically performed on plasma specimens. The test is clinically important for identifying vitamin B6 deficiency, guiding supplementation, and evaluating metabolic or neurologic conditions in which PLP levels are relevant. Nationally, PLP measurement supports diagnostic decision-making across primary care, neurology, hematology, and metabolic clinics, and is part of panels ordered for nutritional assessment and investigative testing.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of what CPT code 84207 covers, the typical clinical settings in which it is performed, and the practical context for its use. The publication provides benchmarks and reimbursement context where available, summarizes relevant policy updates affecting laboratory billing and coverage, and outlines clinical considerations that influence utilization. It also identifies common modifiers associated with laboratory services and notes when additional documentation or medical necessity justification may be required.

Data not available in the input for specific payer rates, associated taxonomies, ICD-10 pairings, and related procedure codes are noted where relevant.