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ALL MEDICAL CODES IN CATEGORY Therapeutic Drug Assays
2025 CPT code 80178
Lithium
2025 CPT code 80171
Quantitative measurement of gabapentin in whole blood, serum, or plasma.
2025 CPT code 80285
Quantitative measurement of voriconazole levels in a patient specimen (serum, plasma, whole blood, or CSF).
2025 CPT code 80203
Quantitative determination of zonisamide levels in a patient's serum or plasma.
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 80184
Quantitative analysis of phenobarbital levels in a specimen (blood, serum, plasma, or CSF).
2025 CPT code 80168
Quantitative analysis of ethosuximide levels in a patient specimen (blood, serum, plasma, or CSF).
2025 CPT code 80177
Quantitative determination of levetiracetam in a patient specimen (e.g., blood, serum, plasma).
2025 CPT code 80192
Quantitative analysis of procainamide and its metabolites (e.g., N-acetylprocainamide) in a specimen (serum, plasma, blood, or cerebrospinal fluid).
2025 CPT code 80161
Quantitative test measuring carbamazepine-10,11-epoxide levels in patient specimens (serum, plasma, etc.) to monitor medication toxicity.
2025 CPT code 80180
This code reports a quantitative therapeutic drug assay to measure mycophenolic acid levels in a patient's blood, serum, plasma, or cerebrospinal fluid.
2025 CPT code 80170
Quantitative analysis of gentamicin levels in a patient specimen (serum, plasma, whole blood, or cerebrospinal fluid).
2025 CPT code 80194
Quantitative analysis of quinidine levels in a patient specimen (serum, plasma, whole blood, or cerebrospinal fluid).
2025 CPT code 80164
Measures the total amount of valproic acid (dipropylacetic acid) in a blood sample.
2025 CPT code 80183
This CPT code represents a quantitative therapeutic drug assay to measure the level of oxcarbazepine in a patient's blood sample (serum, plasma, or whole blood).
2025 CPT code 80201
Quantitative analysis of topiramate levels in a patient specimen (e.g., serum, plasma).
2025 CPT code 80157
This code represents a laboratory test to quantitatively measure the amount of free carbamazepine in a patient's blood sample (serum or plasma).
2025 CPT code 80167
Quantitative test to measure felbamate levels in a patient specimen (e.g., serum).
2025 CPT code 80202
Quantitative analysis of vancomycin levels in a patient specimen (serum, plasma, whole blood, or cerebrospinal fluid).
2025 CPT code 80150
Quantitative analysis of amikacin levels in a patient specimen (e.g., serum, plasma).
2025 CPT code 80165
Measures the concentration of free valproic acid in a blood sample.
2025 CPT code 80197
Quantitative analysis of tacrolimus levels in a patient sample (blood, serum, plasma, or cerebrospinal fluid).
2025 CPT code 80158
Cyclosporine (therapeutic drug assay)
2025 CPT code 80195
Quantitative analysis of sirolimus levels in a biological specimen (blood, serum, plasma, or cerebrospinal fluid).
2025 CPT code 80280
Quantitative test to measure vedolizumab levels in a patient specimen (serum, plasma, whole blood, or CSF).
2025 CPT code 80198
This CPT code represents the laboratory analysis to quantitatively measure the amount of theophylline in a patient specimen (e.g., serum, plasma).
2025 CPT code 80173
Quantitative analysis of haloperidol levels in a patient specimen (serum, plasma, whole blood, or cerebrospinal fluid).
2025 CPT code 80169
Quantitative measurement of everolimus levels in a patient's blood sample.
2025 CPT code 80200
Tobramycin (therapeutic drug assay)
2025 CPT code 80188
Primidone
2025 CPT code 80159
Clozapine therapeutic drug assay.
2025 CPT code 80230
Infliximab (Remicade) level.
2025 CPT code 80176
Lidocaine (therapeutic drug assay, quantitative examination)
2025 CPT code 80235
Lacosamide
2025 CPT code 80163
This test measures the amount of free (unbound) digoxin in the blood.
2025 CPT code 80193
Leflunomide (teriflunomide), quantitative.
2025 CPT code 80186
Laboratory test to measure the amount of free phenytoin, an anticonvulsant medication, in a patient's specimen.
2025 CPT code 80175
Assay of lamotrigine; quantitative
2025 CPT code 80220
Hydroxychloroquine
2025 CPT code 80210
Rufinamide (Banzel), serum, quantitative
2025 CPT code 80204
Methotrexate assay, quantitative.
2025 CPT code 80299
Quantitation of therapeutic drug, not elsewhere specified.
2025 CPT code 80145
Adalimumab (Humira) therapeutic drug assay, quantitative.
2025 CPT code 80181
Flecainide (therapeutic drug assay, quantitative examination)
2025 CPT code 80190
This code represents a quantitative analysis of procainamide in a specimen like serum to monitor therapeutic levels.
2025 CPT code 80156
This code represents a quantitative laboratory test to determine the total amount of carbamazepine in a patient's serum or plasma.
2025 CPT code 80179
Salicylate
2025 CPT code 80162
Measures the total amount of digoxin in a blood sample.
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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