| Test Code | Test Name - (*) found by Test Code | Production Lab | Found by Synonym |
| RH5 | ANTIGEN TYPING, E (LITTLE) | NPL | YES |
| LEA | ANTIGEN TYPING, LEA | NPL | YES |
| LEB | ANTIGEN TYPING, LEB | NPL | YES |
| ARBO | ARBOVIRUS ANTIBODIES, IGG, SERUM | ARUP | YES |
| BFLD | BODY FLUID, LDH | NPL | YES |
| LYME | BORRELIA BURGDORFERI AB, TOTAL (LYME) | ARUP | YES |
| LYMCF | BORRELIA BURGDORFERI AB, TOTAL CSF | ARUP | YES |
| LDPCR | BORRELIA SPECIES DNA DETECTION-PCR-LYME | ARUP | YES |
| CD4 | CD4 PERCENT AND ABSOLUTE | ARUP | YES |
| DIG | DIGOXIN (LANOXIN) | NPL | YES |
| ECTO | ECTOPARASITE EXAM AKA (HEAD LICE) | NPL | YES |
| ELEC | ELECTROLYTE PANEL | NPL | YES |
| LIVP | HEPATIC FUNCTION PANEL | NPL | YES |
| FREEL | IMMUNOGLOBULIN FREE LIGHT CHAINS | MAYO | YES |
| IRONL | IRON, LIVER TISSUE | MAYOSU | YES |
| KEP | KEPPRA (LEVETIRACETAM) | ARUP | YES |
| LD | LACTATE DEHYDROGENASE (LD) | NPL | |
| LDISO | LACTATE DEHYDROGENASE ISOENZYMES | ARUP | |
| LACT | LACTIC ACID | NPL | |
| LAMOT | LAMOTRIGINE/LAMICTAL | ARUP | |
| LEDCP | LEAD, BLOOD CAPILLARY | ARUP | |
| LEDB | LEAD, BLOOD VENOUS | ARUP | |
| LDIND | LEAD, INDUSTRIAL EXPOSURE PANEL | ARUP | |
| LEDU | LEAD, URINE | ARUP | |
| LEGAG | LEGIONELLA AG, URINE | NPL | |
| LEGIN | LEGIONELLA PNEUMOPHILIA ANTIBODIES, IGG | ARUP | |
| FLOWM | LEUKEMIA/LYMPHOMA IMMUNOPHENOTYPING | MAYO | |
| LAP | LEUKOCYTE ALKALINE PHOSPHATASE (LAP) | NPL | |
| LPC | LEUKOPOOR RBC | NPL | |
| MT10K | LIFEWAYS MEDTOX 10 PANEL | MEDTOX | |
| MT5K | LIFEWAYS MEDTOX 5 PANEL | MEDTOX | |
| LIPSE | LIPASE | NPL | |
| LIPID | LIPID PANEL | NPL | |
| LPPA | LIPID PANEL, EXTENDED | ARUP | |
| LIPOA | LIPOPROTEIN (A) | ARUP | |
| LPP | LIPOPROTEIN METABOLISM PROFILE | MAYO | |
| LI | LITHIUM | NPL | |
| LKM1 | LIVER, KIDNEY MICROSOME-1 ANTIBODY, IGG | ARUP | |
| LORA | LORAZEPAM (ATIVAN) | ARUP | |
| LDLD | LOW DENSITY LIPOPROTEIN, DIRECT | NPL | |
| LUPUS | LUPUS ANTICOAGULANT PANEL | NPL | |
| LPSRA | LUPUS COMPREHENSIVE REFLEX PANEL | ARUP | |
| LH | LUTEINIZING HORMONE | NPL | |
| TCELL | LYMPHOCYTE SUBSET PANEL 3 | ARUP | |
| SSB | SSB (LA) ANTIBODY | NPL | YES |