L1first lumbar spine vertebra
L2second lumbar spine vertebra
L3third lumbar spine vertebra
L4fourth lumbar spine vertebra
L5fifth lumbar spine vertebra
LA classificationLos Angeles Classification of Gastroesophageal Reflux Disease
LAACleft atrial appendage closure
LAAEVleft atrium appendage emptying velocity
LAAOleft atrial appendage occlusion
LAATleft atrial appendage thrombus
LABAlong-acting b2-agonist
LABDlinear IgA bullous dermatosis
LADleft anterior descending artery
LAERlate auditory evoked response
LAFBleft anterior fascicular block
LAHBleft anterior hemiblock
LAMAlong-acting muscarinic antagonist
LARleft anterior colon resection
LASIKlaser-assisted in situ keratomileusis
LATlarge neutral amino acid transporter
LAVHLaparoscopic Assisted Vaginal Hysterectomy
LAVIleft atrium volume index
LBBBleft bundle branch block
LBOlarge bowel obstruction
LCDLocal Coverage Determination
LCISlobular carcinoma in situ
LCSWlicensed clinical social worker
LCXleft circumflex (coronary artery)
LDCTlow-dose computed tomography
LDLlow density lipoprotein
LDL-Cow-density lipoprotein cholesterol
LDLRlow-density lipoprotein receptor
LDLTliving donor liver transplantation
LECVDLower Extremity Chronic Venous Disease
LELELeading Edge to Leading Edge
LEMGlaryngeal electromyography
LESlower esophageal sphincter
LESIlumbar epidural steroid injection
LFA-1lymphocyte function-associated antigen-1
LFClateral femoral condyle
LGLlarge granular lymphocyte
LHLaparoscopic Hysterectomy
LHCleft heart catheterization
LHMlaparoscopic Heller myotomy
LHRHluteinizing hormone-releasing hormone
LHX3LIN-11, Isl-1 and MEC-3 Homeobox 3
LHX4LIN-11, Isl-1 and MEC-3 Homeobox 4
Li-RADSLiver Imaging Reporting and Data System
LIFTligation of intersphicteric fistula tract
LIMAleft internal mammary artery
LITTLaser Interstitial Thermal Therapy
LLSMlevator labii superioris muscle
LMlaparoscopic myomectomy
LMCAleft main coronary artery stenosis
LMWHLow Molecular Weight Heparin
LNFlaparoscopic Nissen fundoplication
LOCADTRlevel of care for alcohol and drug treatment referral
LOCUSLevel of Care Utilization System
logMARlogarithm of the minimum angle of resolution
LOLAL-ornithine L-aspartate
LOMNletter of medical necessity
LP-PRPleukocyte-poor platelet-rich plasma
LPMlateral pterygoid muscle
LPPlateral pterygoid plate
LPRLaryngopharyngeal Reflux
LR-PRPleukocyte-rich platelet-rich plasma
LRFFSloco-regional failure-free survival
LRRloco-regional recurrence
LSDlysergic acid diethylamide
LSGLaparoscopic Sleeve Gastrectomy
LSOleft salpingo-oophorectomy
LSPAFlong-standing persistent atrial fibrillation
LSSlumbar spinal stenosis
LTACHlong term acute care hospital
LTBIlatent tuberculosis infection
LTCFlateral temporal cheek fat
LUTSlower urinary tract symptoms
LVADleft ventricular assist device
LVEDPleft ventricular end-diastolic pressure
LVEFleft ventricle ejection fraction
LVHleft ventricular hypertrophy
LVOLarge Vessel Occlusion
LVOTOleft ventricular outflow tract obstruction
LWPESLawson Wilkins Pediatric Endocrine Society
