2026 ICD-10-CM Drugs and Chemicals: Substances Starting with "N"
The 2026 Table of Drugs and Chemicals provides a comprehensive classification of substances including drugs, industrial solvents, corrosive gases, toxic plants, pesticides, and other potentially harmful agents. Each entry is assigned a code based on the nature of the poisoning and the external cause of the adverse effect.
Use as many codes as necessary to fully describe all reported drugs, medicinal products, or chemical substances involved.
You can browse the Table of Drugs and Chemicals alphabetically. The table below displays all substances beginning with the letter " N."
- Nabilone
- Nabumetone
- Nadolol
- Nafcillin
- Nafoxidine
- Naftazone
- Naftidrofuryl (oxalate)
- Naftifine
- Nail polish remover
- Nalbuphine
- Naled
- Nalidixic acid
- Nalorphine
- Naloxone
- Naltrexone
- Namenda
- Nandrolone
- Naphazoline
- Naphtha (painters') (petroleum)
- Naphtha (painters') (petroleum) »solvent
- Naphtha (painters') (petroleum) »vapor
- Naphthalene (non-chlorinated)
- Naphthalene (non-chlorinated) »chlorinated
- Naphthalene (non-chlorinated) »chlorinated
- Naphthalene (non-chlorinated) »insecticide or mo
- Naphthalene (non-chlorinated) »insecticide or mo
- Naphthalene (non-chlorinated) »vapor
- Naphthalene (non-chlorinated) »vapor &nb
- Naphthol
- Naphthylamine
- Naphthylthiourea (ANTU)
- Naproxen
- Narcotic (drug)
- Narcotic (drug) »analgesic NEC
- Narcotic (drug) »antagonist
- Narcotic (drug) »specified NEC
- Narcotic (drug) »synthetic
- Narcotine
- Nardil
- Nasal drug NEC
- Natamycin
- Natural
- Natural »blood (product)
- Natural »gas (piped)
- Natural »gas (piped) »incomp
- Nealbarbital
- Nectadon
- Nedocromil
- Nefopam
- Nematocyst (sting)
- Nembutal
- Nemonapride
- Neoarsphenamine
- Neocinchophen
- Neomycin (derivatives)
- Neomycin (derivatives) »ENT agent
- Neomycin (derivatives) »ophthalmic preparation
- Neomycin (derivatives) »topical NEC
- Neomycin (derivatives) »with
- Neomycin (derivatives) »with
- Neomycin (derivatives) »with
- Neonal
- Neoprontosil
- Neosalvarsan
- Neosilversalvarsan
- Neosporin
- Neosporin »ENT agent
- Neosporin »ophthalmic preparation
- Neosporin »topical NEC
- Neostigmine bromide
- Neraval
- Neravan
- Nerium oleander
- Nerve gas, not in war
- Nesacaine
- Nesacaine »infiltration (subcutaneous)
- Nesacaine »nerve block (peripheral) (plexus)
- Netilmicin
- Neurobarb
- Neuroleptic drug NEC
- Neuromuscular blocking drug
- Neutral insulin injection
- Neutral spirits
- Neutral spirits »beverage
- Niacin
- Niacinamide
- Nialamide
- Niaprazine
- Nicametate
- Nicardipine
- Nicergoline
- Nickel (carbonyl) (tetra-carbonyl) (fumes) (vapor)
- Nickelocene
- Niclosamide
- Nicofuranose
- Nicomorphine
- Nicorandil
- Nicotiana (plant)
- Nicotinamide
- Nicotine (insecticide) (spray) (sulfate) NEC
- Nicotine (insecticide) (spray) (sulfate) NEC »fr
- Nicotine (insecticide) (spray) (sulfate) NEC »fr
- Nicotine (insecticide) (spray) (sulfate) NEC »no
- Nicotinic acid
- Nicotinyl alcohol
- Nicoumalone
- Nifedipine
- Nifenazone
- Nifuraldezone
- Nifuratel
- Nifurtimox
- Nifurtoinol
- Nightshade, deadly (solanum) [See Also: Belladonna]
- Nightshade, deadly (solanum) [See Also: Belladonna] &
- Nikethamide
- Nilstat
- Nilstat »topical
- Nilutamide
- Nimesulide
- Nimetazepam
- Nimodipine
- Nimorazole
- Nimustine
- Niridazole
- Nisentil
- Nisoldipine
- Nitramine
- Nitrate, organic
- Nitrazepam
- Nitrefazole
- Nitrendipine
- Nitric
- Nitric »acid (liquid)
- Nitric »acid (liquid) »vapor
- Nitric »oxide (gas)
- Nitrimidazine
- Nitrite, amyl (medicinal) (vapor)
- Nitroaniline
- Nitroaniline »vapor
- Nitrobenzene, nitrobenzol
- Nitrobenzene, nitrobenzol »vapor
- Nitrocellulose
- Nitrocellulose »lacquer
- Nitrodiphenyl
- Nitrofural
- Nitrofurantoin
- Nitrofurazone
- Nitrogen
- Nitrogen »mustard
- Nitroglycerin, nitro-glycerol (medicinal)
- Nitroglycerin, nitro-glycerol (medicinal) »nonme
- Nitroglycerin, nitro-glycerol (medicinal) »nonme
- Nitroglycol
- Nitrohydrochloric acid
- Nitromersol
- Nitronaphthalene
- Nitrophenol
- Nitropropane
- Nitroprusside
- Nitrosodimethylamine
- Nitrothiazol
- Nitrotoluene, nitrotoluol
- Nitrotoluene, nitrotoluol »vapor
- Nitrous
- Nitrous »acid (liquid)
- Nitrous »acid (liquid) »fume
- Nitrous »ether spirit
- Nitrous »oxide
- Nitroxoline
- Nitrozone
- Nizatidine
- Nizofenone
- Noctec
- Noludar
- Nomegestrol
- Nomifensine
- Nonoxinol
- Nonylphenoxy (polyethoxy-ethanol)
- Noptil
- Noradrenaline
- Noramidopyrine
- Noramidopyrine »methanesulfonate sodium
- Norbormide
- Nordazepam
- Norepinephrine
- Norethandrolone
- Norethindrone
- Norethisterone (acetate) (enantate)
- Norethisterone (acetate) (enantate) »with ethiny
- Noretynodrel
- Norfenefrine
- Norfloxacin
- Norgestrel
- Norgestrienone
- Norlestrin
- Norlutin
- Normal serum albumin (human), salt-poor
- Normethandrone
- Normorphine
- Norpseudoephedrine
- Nortestosterone (furanpropionate)
- Nortriptyline
- Noscapine
- Nose preparations
- Novobiocin
- Novocain (infiltration) (topical)
- Novocain (infiltration) (topical) »nerve block (
- Novocain (infiltration) (topical) »spinal
- Noxious foodstuff
- Noxious foodstuff »specified NEC
- Noxiptiline
- Noxytiolin
- NPH Iletin (insulin)
- Numorphan
- Nunol
- Nupercaine (spinal anesthetic)
- Nupercaine (spinal anesthetic) »topical (surface
- Nutmeg oil (liniment)
- Nutritional supplement
- Nux vomica
- Nydrazid
- Nylidrin
- Nystatin
- Nystatin »topical
- Nytol
