CPT code 80150 represents a quantitative laboratory assay for measuring amikacin concentration in a clinical specimen. Therapeutic drug monitoring for amikacin is clinically important because of the drug's narrow therapeutic index and potential toxicity; accurate measurement guides dose adjustments and informs clinical decisions nationally across inpatient and outpatient care settings. This code captures the technical laboratory work required to produce a validated numeric drug concentration result.

Key payers in the national context include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the service captured by the code, typical sites of service, and the clinical context for ordering amikacin levels. The publication summarizes common billing modifiers associated with laboratory services, notes where input data are unavailable, and outlines the practical implications for clinical and laboratory workflows. It also highlights what to expect in terms of coding classification and how this assay fits into therapeutic drug monitoring programs and antimicrobial stewardship efforts. Data not available in the input are identified clearly where relevant.