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ALL MEDICAL CODES IN CATEGORY Pathology and Laboratory Procedures > Therapeutic Drug Assays

2025 CPT code 80200

Tobramycin (therapeutic drug assay)

Posaconazole

Tiagabine

Phenytoin; total.

This CPT code represents a quantitative assay to measure the level of caffeine in a patient's blood, serum, plasma, or cerebrospinal fluid.

Quantitative analysis of quinidine levels in a patient specimen (serum, plasma, whole blood, or cerebrospinal fluid).

Quantitative analysis of haloperidol levels in a patient specimen (serum, plasma, whole blood, or cerebrospinal fluid).

Quantitative test measuring itraconazole levels in patient specimens (e.g., serum, plasma).

Acetaminophen (For definitive drug testing for acetaminophen, see 80329, 80330, 80331)

Quantitative analysis of sirolimus levels in a biological specimen (blood, serum, plasma, or cerebrospinal fluid).

Quantitative test to measure amiodarone levels in a patient specimen (e.g., serum).

Quantitative analysis of topiramate levels in a patient specimen (e.g., serum, plasma).

Quantitative analysis of vancomycin levels in a patient specimen (serum, plasma, whole blood, or cerebrospinal fluid).