- Lactate dehydrogenase (enzyme) level
- Laparoscopic cholecystectomy (Inpatient)
- Laparoscopic hysterectomy
- Laparoscopic/Hysteroscopic Procedures on the uterus
- Laser cataract removal
- Laser removal of incompetent vein
- Laser vaporization of prostate using an endoscope
- LDL cholesterol level
- Levetiracetam level
- Light-based method to treat pain and inflammation
- Limited bilateral noninvasive physiologic studies of upper or lower extremity arteries
- Lipase (fat enzyme) level
- Liposuction (lipectomy), head and neck
- Liposuction (lipectomy), lower extremities (hips, thighs, knees)
- Liposuction (lipectomy), trunk (abdomen)
- Liposuction (lipectomy), upper extremities (upper arms)
- Lithium Level
- Liver enzyme (SGOT), level
- Liver enzyme (SGPT), level
- Liver function blood test panel
- Liver function blood test panel
- Loss of conciousness and collapse
- Lower extremity and humerus procedures except hip, foot and femur