- L-shaped kidney 753.3
- L-xyloketosuria 271.8
- La grippe - see Influenza
- Labia, labium - see condition
- Labiated hymen 752.49
- Labile
- Lability, emotional 799.24
- Labioglossal paralysis 335.22
- Labium leporinum (see also Cleft, lip) 749.10
- Labor (see also Delivery)
- Labored breathing (see also Hyperventilation) 786.09
- Labyrinthitis (inner ear) (destructive) (latent) 386.30
- Laceration - see also Wound, open, by site
- Lachrymal - see condition
- Lachrymonasal duct - see condition
- Lack of
- Lacrimal - see condition
- Lacrimation, abnormal (see also Epiphora) 375.20
- Lacrimonasal duct - see condition
- Lactation, lactating (breast) (puerperal) (postpartum)
- Lacticemia 271.3
- Lactosuria 271.3
