- Nabilone, J8650
- Nalbuphine HCl, J2300
- Naloxone HCl, J2310
- Naltrexone, J2315
- Nandrolone decanoate, J2320
- Narrowing device, wheelchair, E0969
- Nasal application device, K0183
- Nasal pillows/seals (for nasal application device), K0184
- Nasal vaccine inhalation, J3530
- Nasogastric tubing, B4081, B4082
- Natalizumab, J2323
- Nebulizer, E0570-E0585
- aerosol compressor, E0571
- aerosol mask, A7015
- corrugated tubing, disposable, A7010
- filter, disposable, A7013
- filter, non-disposable, A7014
- heater, E1372
- large volume, disposable, prefilled, A7008
- large volume, disposable, unfilled, A7007
- not used with oxygen, durable, glass, A7017
- pneumatic, administration set, A7003, A7005, A7006
- pneumatic, nonfiltered, A7004
- portable, E0570
- small volume, A7003-A7005
- ultrasonic, E0575
- ultrasonic, dome and mouthpiece, A7016
- ultrasonic, reservoir bottle, non-disposable, A7009
- water collection device, large volume nebulizer, A7012
- Necitumumab, J9295
- Needle, A4215
- non-coring, A4212
- with syringe, A4206-A4209
- Negative pressure wound therapy pump, E2402
- accessories, A6550
- Nelarabine, J9261
- Neonatal transport, ambulance, base rate, A0225
- Neostigmine methylsulfate, J2710
- Nerve stimulator with batteries, E0765
- Nesiritide injection, J2324
- Neuromuscular stimulator, E0745
- Neurostimulator
- battery recharging system, L8695
- external antenna, L8696
- pulse generator, L8681-L8688
- Nipple prosthesis, custom fabricated, reusable L8033
- Nipple prosthesis, prefabricated, reusable L8032
- Nitrogen N-13 ammonia, A9526
- Nonchemotherapy drug, oral, NOS, J8499
- Noncovered services, A9270
- Nonemergency transportation, A0080-A0210
- Nonimpregnated gauze dressing, A6216-A6221, A6402-A6404
- Nonprescription drug, A9150
- Not otherwise classified drug, J3490, J7599, J7699, J7799, J8499, J8999, J9999,
- Q0181
- NPH, J1820
- NTIOL category 3, Q1003
- NTIOL category 4, Q1004
- NTIOL category 5, Q1005
- Novafix, Q4208
- Nursing care, T1030-T1031
- Nusinersen, J2326
- Nutrition
- enteral infusion pump, B9002
- parenteral infusion pump, B9004, B9006
- parenteral solution, B4164-B5200