Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (2) Serum or Plasma (2) (-) Urine (2) Test Area Therapeutics (2) Test Category (-) Analgesics (2) Antacids (1) Antianxiety (1) Antidepressants (5) Antiepileptics/Antiseizures (3) Antigout Agents (1) Antihistamines (3) Antihypertensives (1) Antimicrobials (1) Antipsychotics (5) Benzodiazepines (1) Biomarkers (1) Drugs of Abuse, Therapeutics (1) Gases (1) Metals/Elements (11) Muscle Relaxants (3) Other (1) Psychoactives (3) Sedative/Hypnotics (6) Solvents (2) Stimulants (5) Volatiles (2) Test Sub-Category Opiates/Opioids (2) Test Test Name 1306U Codeine - Total (Conjugated/Unconjugated) Screen, Urine 8661U Codeine and Metabolite - Total (Conjugated/Unconjugated), Urine