Test Code Test Name
LYSOZM Lysozyme (Muramidase)
LYNCHP Lynch Syndrome Tumor Panel, IHC with Interpretation
LGVDFF Lymphogranuloma Venereum (LGV) Differentiation Antibody Panel, MIF
LYMSUB Lymphocyte Subset Panel 4
LYMPCP Lymphocyte Clonality Panel, PCR
6646 Lyme Disease Antibody with Reflex to Blot (IgG, IgM)
LYMMCF Lyme Disease Antibody (IgM), IBL (CSF)
LYMGCF Lyme Disease Antibody (IgG), IBL (CSF)
LYMEAB Lyme Disease Antibodies (IgG, IgM), Immunoblot 
LYME Lyme Antibody w/ Western Blot Confirmation
LH Luteinizing Hormone, Serum
LUPPK Lupus Profile
LUPACP Lupus Anticoagulant Profile W/Reflex testing to Confirm
LUPAC1 Lupus Anticoagulant Assay W/Reflex testing to Confirm
LUNGCX Lung Cancer Mutation Panel (EGFR, KRAS, ALK)
LCROS1 Lung Cancer (NSCLC), ROS1 (6q22) Rearrangement, FISH
LPPLA2 Lp-PLA2 Activity
LORAZU Lorazepam, Urine
LOIGE Lobster (F80), IgE
LKMICR Liver Kidney Microsomal (LKM-1) Antibody (IgG)
LVRFIB Liver Fibrosis, FibroTest-ActiTest Panel
LITH-WILSON LITHIUM
LIPOEL Lipoprotein Electrophoresis
LIPOA Lipoprotein (a)
LIPID-WILSON LIPID PANEL
LIPBF LIPASE BODY FLUID
LIP LIPASE
LIME Lime (f306) IgE
LIDO Lidocaine
KEPRA Levetiracetam, Immunoassay
LEUKF Leukocytes, Fecal
LETTUC Lettuce (F215) IgE
LEPTQL Leptospira DNA, Qualitative, Real-Time PCR
LEPTIN Leptin
LENTIL Lentils (f235) IgE
LEMON Lemon (F208) IgE (2708X)
LEISH Leishmania Antibody (IgG)
LEISH Leishmania Antibody (IgG)
LEGNAG Legionella Pneumophila Antigen, DFA
LEGNLM Legionella pneumophila Antibody (IgM), IFA
LPNEUM Legionella pneumophila Antibody (IgG), IFA
LEGNQL Legionella DNA, Qualitative, Real-Time PCR
LEGUAG Legionella Antigen, Urine
LEFMET Leflunomide Metabolite
LEADUR Lead, Urine
CLEAD Lead, Capillary 
OSHALD Lead (Venous), OSHA
LEAD Lead (Venous)
LDH-WILSON LDH
LDHSYN LD, Synovial Fluid
LAIGE Latex Hevea Brazilensis (K82), IgE
LAMOTR Lamotrigine
LAMBDA Lambda Light Chain, Free
LAQU Lamb's Quarters (Goosefoot) (W10), IgE
LAMB Lamb (f88) IgE
LACTOF Lactoferrin, Quantitative, Stool
LACQL LACTOFERRIN, QL, STOOL
LACSF Lactic Acid, CSF
LACTIC LACTIC ACID
LACPYR Lactate/Pyruvate, Filtrate
LDHISO Lactate Dehydrogenase Isoenzymes
LDHIP Lactate Dehydrogenase (LD) Isoenzyme Panel
LDHAMD Lactate Dehydrogenase (LD)
LACOSM Lacosamide
ENC2 Encephalopathy Autoimmune Evaluation, CSF