| L | & A Light And Accommodation | - | Medical(slang) |
| L&A | Light And Accommodation | - | Medical(slang) |
| LAD | Left Anterior Descending (artery) | - | Medical(slang) |
| LB | Large Bowel | - | Medical(slang) |
| LDL | Low Density Lipoprotein | - | Medical(slang) |
| LE | Lupus Erythematosus | - | Medical(slang) |
| LE | Lower Extremities | - | Medical(slang) |
| LEEP | Loop Electrosurgical Excision Procedure | - | Medical(slang) |
| LFTS | Liver Function Test | - | Medical(slang) |
| LFTS | Liver Function Tests | - | Medical(slang) |
| LIJ | Left Internal Jugular | - | Medical(slang) |
| LLQ | Left Lower Quadrant | - | Medical(slang) |
| LMA | Laryngeal Mask Airway | - | Medical(slang) |
| LMP | Last Menstrual Period | - | Medical(slang) |
| LOX | Liquid Oxygen | - | Medical(slang) |
| LP | Lumbar Puncture | - | Medical(slang) |
| LSC | Left Subclavian | - | Medical(slang) |
| LSIL | Low Grade Squamous Intraepithelial Lesion | - | Medical(slang) |
| LUQ | Left Upper Quadrant | - | Medical(slang) |
| LVEF | Left Ventricular Ejection Fraction | - | Medical(slang) |
| LVF | Left Ventricular Failure | - | Medical(slang) |
| LVH | Left Ventricular Hypertrophy | - | Medical(slang) |
