- Kanamycin sulfate, J1840, J1850
- Kartop patient lift, toilet or bathroom (see also Lift), E0625
- Keramatrix or kerasorb, J4165
- Ketorolac thomethamine, J1885
- Kidney
- ESRD supply, A4650-A4927
- system, E1510
- wearable artificial, E1632
- Kits
- enteral feeding supply (syringe) (pump) (gravity), B4034-B4036
- fistula cannulation (set), A4730
- parenteral nutrition, B4220-B4224
- surgical dressing (tray), A4550
- tracheostomy, A4625
- Knee
- disarticulation, prosthesis, L5150, L5160
- joint, miniature, L5826
- orthosis (KO), E1810, L1800-L1885, K1014
- Knee-ankle-foot device with microprocessor control, L2006
- Knee-ankle-foot orthosis (KAFO), L2000-L2039, L2126-L2136, K1007
- Knee-ankle-foot orthosis (KAFO) addition, high strength, lightweight material, L2755
- Kovaltry, J7211
- Kyphosis pad, L1020, L1025