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ALL MEDICAL CODES IN CATEGORY Pathology and Laboratory Procedures > Therapeutic Drug Assays
2025 CPT code 80189
Quantitative test measuring itraconazole levels in patient specimens (e.g., serum, plasma).
2025 CPT code 80151
Quantitative test to measure amiodarone levels in a patient specimen (e.g., serum).
2025 CPT code 80194
Quantitative analysis of quinidine levels in a patient specimen (serum, plasma, whole blood, or cerebrospinal fluid).
2025 CPT code 80201
Quantitative analysis of topiramate levels in a patient specimen (e.g., serum, plasma).
2025 CPT code 80202
Quantitative analysis of vancomycin levels in a patient specimen (serum, plasma, whole blood, or cerebrospinal fluid).
2025 CPT code 80195
Quantitative analysis of sirolimus levels in a biological specimen (blood, serum, plasma, or cerebrospinal fluid).
2025 CPT code 80173
Quantitative analysis of haloperidol levels in a patient specimen (serum, plasma, whole blood, or cerebrospinal fluid).
2025 CPT code 80200
Tobramycin (therapeutic drug assay)
2025 CPT code 80143
Acetaminophen (For definitive drug testing for acetaminophen, see 80329, 80330, 80331)
2025 CPT code 80187
Posaconazole
2025 CPT code 80199
Tiagabine
2025 CPT code 80185
Phenytoin; total.
2025 CPT code 80155
This CPT code represents a quantitative assay to measure the level of caffeine in a patient's blood, serum, plasma, or cerebrospinal fluid.
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