ICDcodes.org
FY2027

Table of Drugs and Chemicals — N

222 entries beginning with N. Find the substance down the left, then read across to the column matching what happened. The same substance produces six different codes depending on intent and circumstance.

EntryPoisoning Accidental (unintentional)Poisoning Intentional self-harmPoisoning AssaultPoisoning UndeterminedAdverse effectUnderdosing
NabiloneT40.711T40.712T40.713T40.714T40.715T40.716
NabumetoneT39.391T39.392T39.393T39.394T39.395T39.396
NadololT44.7X1T44.7X2T44.7X3T44.7X4T44.7X5T44.7X6
NafcillinT36.0X1T36.0X2T36.0X3T36.0X4T36.0X5T36.0X6
NafoxidineT38.6X1T38.6X2T38.6X3T38.6X4T38.6X5T38.6X6
NaftazoneT46.991T46.992T46.993T46.994T46.995T46.996
NaftidrofurylT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
NaftifineT49.0X1T49.0X2T49.0X3T49.0X4T49.0X5T49.0X6
Nail polish removerT52.91T52.92T52.93T52.94——
NalbuphineT40.491T40.492T40.493T40.494T40.495T40.496
NaledT60.0X1T60.0X2T60.0X3T60.0X4——
Nalidixic acidT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
NalorphineT50.7X1T50.7X2T50.7X3T50.7X4T50.7X5T50.7X6
NaloxoneT50.7X1T50.7X2T50.7X3T50.7X4T50.7X5T50.7X6
NaltrexoneT50.7X1T50.7X2T50.7X3T50.7X4T50.7X5T50.7X6
NamendaT43.8X1T43.8X2T43.8X3T43.8X4T43.8X5T43.8X6
NandroloneT38.7X1T38.7X2T38.7X3T38.7X4T38.7X5T38.7X6
NaphazolineT48.5X1T48.5X2T48.5X3T48.5X4T48.5X5T48.5X6
NaphthaT52.0X1T52.0X2T52.0X3T52.0X4——
solventT52.0X1T52.0X2T52.0X3T52.0X4——
vaporT52.0X1T52.0X2T52.0X3T52.0X4——
NaphthaleneT60.2X1T60.2X2T60.2X3T60.2X4——
chlorinatedT60.1X1T60.1X2T60.1X3T60.1X4——
vaporT60.1X1T60.1X2T60.1X3T60.1X4——
insecticide or moth repellentT60.2X1T60.2X2T60.2X3T60.2X4——
chlorinatedT60.1X1T60.1X2T60.1X3T60.1X4——
vaporT60.2X1T60.2X2T60.2X3T60.2X4——
chlorinatedT60.1X1T60.1X2T60.1X3T60.1X4——
NaphthenesT52.821T52.822T52.823T52.824——
NaphtholT65.891T65.892T65.893T65.894——
NaphthylamineT65.891T65.892T65.893T65.894——
NaphthylthioureaT60.4X1T60.4X2T60.4X3T60.4X4——
NaproxenT39.311T39.312T39.313T39.314T39.315T39.316
NarcoticT40.601T40.602T40.603T40.604T40.605T40.606
analgesic NECT40.601T40.602T40.603T40.604T40.605T40.606
antagonistT50.7X1T50.7X2T50.7X3T50.7X4T50.7X5T50.7X6
specified NECT40.691T40.692T40.693T40.694T40.695T40.696
syntheticT40.491T40.492T40.493T40.494T40.495T40.496
NarcotineT48.3X1T48.3X2T48.3X3T48.3X4T48.3X5T48.3X6
NardilT43.1X1T43.1X2T43.1X3T43.1X4T43.1X5T43.1X6
Nasal drug NECT49.6X1T49.6X2T49.6X3T49.6X4T49.6X5T49.6X6
NatamycinT49.0X1T49.0X2T49.0X3T49.0X4T49.0X5T49.0X6
bloodT45.8X1T45.8X2T45.8X3T45.8X4T45.8X5T45.8X6
gasT59.891T59.892T59.893T59.894——
incomplete combustionT58.11T58.12T58.13T58.14——
NealbarbitalT42.3X1T42.3X2T42.3X3T42.3X4T42.3X5T42.3X6
NectadonT48.3X1T48.3X2T48.3X3T48.3X4T48.3X5T48.3X6
NedocromilT48.6X1T48.6X2T48.6X3T48.6X4T48.6X5T48.6X6
NefopamT39.8X1T39.8X2T39.8X3T39.8X4T39.8X5T39.8X6
NematocystT63.691T63.692T63.693T63.694——
NembutalT42.3X1T42.3X2T42.3X3T42.3X4T42.3X5T42.3X6
NemonaprideT43.591T43.592T43.593T43.594T43.595T43.596
NeoarsphenamineT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
NeocinchophenT50.4X1T50.4X2T50.4X3T50.4X4T50.4X5T50.4X6
NeomycinT36.5X1T36.5X2T36.5X3T36.5X4T36.5X5T36.5X6
bacitracinT49.0X1T49.0X2T49.0X3T49.0X4T49.0X5T49.0X6
neostigmineT44.0X1T44.0X2T44.0X3T44.0X4T44.0X5T44.0X6
ENT agentT49.6X1T49.6X2T49.6X3T49.6X4T49.6X5T49.6X6
ophthalmic preparationT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
topical NECT49.0X1T49.0X2T49.0X3T49.0X4T49.0X5T49.0X6
NeonalT42.3X1T42.3X2T42.3X3T42.3X4T42.3X5T42.3X6
NeoprontosilT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
NeosalvarsanT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
NeosilversalvarsanT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
NeosporinT36.8X1T36.8X2T36.8X3T36.8X4T36.8X5T36.8X6
ENT agentT49.6X1T49.6X2T49.6X3T49.6X4T49.6X5T49.6X6
ophthalmic preparationT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
topical NECT49.0X1T49.0X2T49.0X3T49.0X4T49.0X5T49.0X6
Neostigmine bromideT44.0X1T44.0X2T44.0X3T44.0X4T44.0X5T44.0X6
NeravalT42.3X1T42.3X2T42.3X3T42.3X4T42.3X5T42.3X6
NeravanT42.3X1T42.3X2T42.3X3T42.3X4T42.3X5T42.3X6
Nerium oleanderT62.2X1T62.2X2T62.2X3T62.2X4——
Nerve gas, not in warT59.91T59.92T59.93T59.94——
NesacaineT41.3X1T41.3X2T41.3X3T41.3X4T41.3X5T41.3X6
infiltrationT41.3X1T41.3X2T41.3X3T41.3X4T41.3X5T41.3X6
nerve blockT41.3X1T41.3X2T41.3X3T41.3X4T41.3X5T41.3X6
NetilmicinT36.5X1T36.5X2T36.5X3T36.5X4T36.5X5T36.5X6
NeurobarbT42.3X1T42.3X2T42.3X3T42.3X4T42.3X5T42.3X6
Neuroleptic drug NECT43.501T43.502T43.503T43.504T43.505T43.506
Neuromuscular blocking drugT48.1X1T48.1X2T48.1X3T48.1X4T48.1X5T48.1X6
Neutral insulin injectionT38.3X1T38.3X2T38.3X3T38.3X4T38.3X5T38.3X6
Neutral spiritsT51.0X1T51.0X2T51.0X3T51.0X4——
beverageT51.0X1T51.0X2T51.0X3T51.0X4——
NiacinT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
NiacinamideT45.2X1T45.2X2T45.2X3T45.2X4T45.2X5T45.2X6
NialamideT43.1X1T43.1X2T43.1X3T43.1X4T43.1X5T43.1X6
NiaprazineT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
NicametateT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
NicardipineT46.1X1T46.1X2T46.1X3T46.1X4T46.1X5T46.1X6
NicergolineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
NickelT56.891T56.892T56.893T56.894——
NickeloceneT56.891T56.892T56.893T56.894——
NiclosamideT37.4X1T37.4X2T37.4X3T37.4X4T37.4X5T37.4X6
NicofuranoseT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
NicomorphineT40.2X1T40.2X2T40.2X3T40.2X4——
NicorandilT46.3X1T46.3X2T46.3X3T46.3X4T46.3X5T46.3X6
NicotianaT62.2X1T62.2X2T62.2X3T62.2X4——
NicotinamideT45.2X1T45.2X2T45.2X3T45.2X4T45.2X5T45.2X6
NicotineNECT60.2X1T60.2X2T60.2X3T60.2X4——
from tobaccoT65.291T65.292T65.293T65.294——
cigarettesT65.221T65.222T65.223T65.224——
not insecticideT65.291T65.292T65.293T65.294——
Nicotinic acidT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
Nicotinyl alcoholT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
NicoumaloneT45.511T45.512T45.513T45.514T45.515T45.516
NifedipineT46.1X1T46.1X2T46.1X3T46.1X4T46.1X5T46.1X6
NifenazoneT39.2X1T39.2X2T39.2X3T39.2X4T39.2X5T39.2X6
NifuraldezoneT37.91T37.92T37.93T37.94T37.95T37.96
NifuratelT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
NifurtimoxT37.3X1T37.3X2T37.3X3T37.3X4T37.3X5T37.3X6
NifurtoinolT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Nightshade, deadlyT62.2X1T62.2X2T62.2X3T62.2X4——
berryT62.1X1T62.1X2T62.1X3T62.1X4——
NikethamideT50.7X1T50.7X2T50.7X3T50.7X4T50.7X5T50.7X6
NilstatT36.7X1T36.7X2T36.7X3T36.7X4T36.7X5T36.7X6
topicalT49.0X1T49.0X2T49.0X3T49.0X4T49.0X5T49.0X6
NilutamideT38.6X1T38.6X2T38.6X3T38.6X4T38.6X5T38.6X6
NimesulideT39.391T39.392T39.393T39.394T39.395T39.396
NimetazepamT42.4X1T42.4X2T42.4X3T42.4X4T42.4X5T42.4X6
NimodipineT46.1X1T46.1X2T46.1X3T46.1X4T46.1X5T46.1X6
NimorazoleT37.3X1T37.3X2T37.3X3T37.3X4T37.3X5T37.3X6
NimustineT45.1X1T45.1X2T45.1X3T45.1X4T45.1X5T45.1X6
NiridazoleT37.4X1T37.4X2T37.4X3T37.4X4T37.4X5T37.4X6
NisentilT40.2X1T40.2X2T40.2X3T40.2X4T40.2X5T40.2X6
NisoldipineT46.1X1T46.1X2T46.1X3T46.1X4T46.1X5T46.1X6
NitramineT65.3X1T65.3X2T65.3X3T65.3X4——
Nitrate, organicT46.3X1T46.3X2T46.3X3T46.3X4T46.3X5T46.3X6
NitrazepamT42.4X1T42.4X2T42.4X3T42.4X4T42.4X5T42.4X6
NitrefazoleT50.6X1T50.6X2T50.6X3T50.6X4T50.6X5T50.6X6
NitrendipineT46.1X1T46.1X2T46.1X3T46.1X4T46.1X5T46.1X6
acidT54.2X1T54.2X2T54.2X3T54.2X4——
vaporT59.891T59.892T59.893T59.894——
oxideT59.0X1T59.0X2T59.0X3T59.0X4——
NitrimidazineT37.3X1T37.3X2T37.3X3T37.3X4T37.3X5T37.3X6
Nitrite, amylT46.3X1T46.3X2T46.3X3T46.3X4T46.3X5T46.3X6
NitroanilineT65.3X1T65.3X2T65.3X3T65.3X4——
vaporT59.891T59.892T59.893T59.894——
Nitrobenzene, nitrobenzolT65.3X1T65.3X2T65.3X3T65.3X4——
vaporT65.3X1T65.3X2T65.3X3T65.3X4——
NitrocelluloseT65.891T65.892T65.893T65.894——
lacquerT65.891T65.892T65.893T65.894——
NitrodiphenylT65.3X1T65.3X2T65.3X3T65.3X4——
NitrofuralT49.0X1T49.0X2T49.0X3T49.0X4T49.0X5T49.0X6
NitrofurantoinT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
NitrofurazoneT49.0X1T49.0X2T49.0X3T49.0X4T49.0X5T49.0X6
NitrogenT59.0X1T59.0X2T59.0X3T59.0X4——
mustardT45.1X1T45.1X2T45.1X3T45.1X4T45.1X5T45.1X6
Nitroglycerin, nitro-glycerolT46.3X1T46.3X2T46.3X3T46.3X4T46.3X5T46.3X6
nonmedicinalT65.5X1T65.5X2T65.5X3T65.5X4——
fumesT65.5X1T65.5X2T65.5X3T65.5X4——
NitroglycolT52.3X1T52.3X2T52.3X3T52.3X4——
Nitrohydrochloric acidT54.2X1T54.2X2T54.2X3T54.2X4——
NitromersolT49.0X1T49.0X2T49.0X3T49.0X4T49.0X5T49.0X6
NitronaphthaleneT65.891T65.892T65.893T65.894——
NitrophenolT54.0X1T54.0X2T54.0X3T54.0X4——
NitropropaneT52.891T52.892T52.893T52.894——
NitroprussideT46.5X1T46.5X2T46.5X3T46.5X4T46.5X5T46.5X6
NitrosodimethylamineT65.3X1T65.3X2T65.3X3T65.3X4——
NitrothiazolT37.4X1T37.4X2T37.4X3T37.4X4T37.4X5T37.4X6
Nitrotoluene, nitrotoluolT65.3X1T65.3X2T65.3X3T65.3X4——
vaporT65.3X1T65.3X2T65.3X3T65.3X4——
acidT54.2X1T54.2X2T54.2X3T54.2X4——
fumesT59.891T59.892T59.893T59.894——
ether spiritT46.3X1T46.3X2T46.3X3T46.3X4T46.3X5T46.3X6
oxideT41.0X1T41.0X2T41.0X3T41.0X4T41.0X5T41.0X6
NitroxolineT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
NitrozoneT49.0X1T49.0X2T49.0X3T49.0X4T49.0X5T49.0X6
NizatidineT47.0X1T47.0X2T47.0X3T47.0X4T47.0X5T47.0X6
NizofenoneT43.8X1T43.8X2T43.8X3T43.8X4T43.8X5T43.8X6
NoctecT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
NoludarT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
NomegestrolT38.5X1T38.5X2T38.5X3T38.5X4T38.5X5T38.5X6
NomifensineT43.291T43.292T43.293T43.294T43.295T43.296
NonoxinolT49.8X1T49.8X2T49.8X3T49.8X4T49.8X5T49.8X6
NonylphenoxyT49.8X1T49.8X2T49.8X3T49.8X4T49.8X5T49.8X6
NoptilT42.3X1T42.3X2T42.3X3T42.3X4T42.3X5T42.3X6
NoradrenalineT44.4X1T44.4X2T44.4X3T44.4X4T44.4X5T44.4X6
NoramidopyrineT39.2X1T39.2X2T39.2X3T39.2X4T39.2X5T39.2X6
methanesulfonate sodiumT39.2X1T39.2X2T39.2X3T39.2X4T39.2X5T39.2X6
NorbormideT60.4X1T60.4X2T60.4X3T60.4X4——
NordazepamT42.4X1T42.4X2T42.4X3T42.4X4T42.4X5T42.4X6
NorepinephrineT44.4X1T44.4X2T44.4X3T44.4X4T44.4X5T44.4X6
NorethandroloneT38.7X1T38.7X2T38.7X3T38.7X4T38.7X5T38.7X6
NorethindroneT38.4X1T38.4X2T38.4X3T38.4X4T38.4X5T38.4X6
NorethisteroneT38.4X1T38.4X2T38.4X3T38.4X4T38.4X5T38.4X6
with ethinylestradiolT38.5X1T38.5X2T38.5X3T38.5X4T38.5X5T38.5X6
NoretynodrelT38.5X1T38.5X2T38.5X3T38.5X4T38.5X5T38.5X6
NorfenefrineT44.4X1T44.4X2T44.4X3T44.4X4T44.4X5T44.4X6
NorfloxacinT36.8X1T36.8X2T36.8X3T36.8X4T36.8X5T36.8X6
NorgestrelT38.4X1T38.4X2T38.4X3T38.4X4T38.4X5T38.4X6
NorgestrienoneT38.4X1T38.4X2T38.4X3T38.4X4T38.4X5T38.4X6
NorlestrinT38.4X1T38.4X2T38.4X3T38.4X4T38.4X5T38.4X6
NorlutinT38.4X1T38.4X2T38.4X3T38.4X4T38.4X5T38.4X6
Normal serum albumin, salt-poorT45.8X1T45.8X2T45.8X3T45.8X4T45.8X5T45.8X6
NormethandroneT38.5X1T38.5X2T38.5X3T38.5X4T38.5X5T38.5X6
NormorphineT40.2X1T40.2X2T40.2X3T40.2X4——
NorpseudoephedrineT50.5X1T50.5X2T50.5X3T50.5X4T50.5X5T50.5X6
NortestosteroneT38.7X1T38.7X2T38.7X3T38.7X4T38.7X5T38.7X6
NortriptylineT43.011T43.012T43.013T43.014T43.015T43.016
NoscapineT48.3X1T48.3X2T48.3X3T48.3X4T48.3X5T48.3X6
Nose preparationsT49.6X1T49.6X2T49.6X3T49.6X4T49.6X5T49.6X6
NovobiocinT36.5X1T36.5X2T36.5X3T36.5X4T36.5X5T36.5X6
NovocainT41.3X1T41.3X2T41.3X3T41.3X4T41.3X5T41.3X6
nerve blockT41.3X1T41.3X2T41.3X3T41.3X4T41.3X5T41.3X6
spinalT41.3X1T41.3X2T41.3X3T41.3X4T41.3X5T41.3X6
Noxious foodstuffT62.91T62.92T62.93T62.94——
specified NECT62.8X1T62.8X2T62.8X3T62.8X4——
NoxiptilineT43.011T43.012T43.013T43.014T43.015T43.016
NoxytiolinT49.0X1T49.0X2T49.0X3T49.0X4T49.0X5T49.0X6
NPH IletinT38.3X1T38.3X2T38.3X3T38.3X4T38.3X5T38.3X6
NumorphanT40.2X1T40.2X2T40.2X3T40.2X4T40.2X5T40.2X6
NunolT42.3X1T42.3X2T42.3X3T42.3X4T42.3X5T42.3X6
NupercaineT41.3X1T41.3X2T41.3X3T41.3X4T41.3X5T41.3X6
topicalT41.3X1T41.3X2T41.3X3T41.3X4T41.3X5T41.3X6
Nutmeg oilT49.3X1T49.3X2T49.3X3T49.3X4T49.3X5T49.3X6
Nutritional supplementT50.901T50.902T50.903T50.904T50.905T50.906
Nux vomicaT65.1X1T65.1X2T65.1X3T65.1X4——
NydrazidT37.1X1T37.1X2T37.1X3T37.1X4T37.1X5T37.1X6
NylidrinT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
NystatinT36.7X1T36.7X2T36.7X3T36.7X4T36.7X5T36.7X6
topicalT49.0X1T49.0X2T49.0X3T49.0X4T49.0X5T49.0X6
NytolT45.0X1T45.0X2T45.0X3T45.0X4T45.0X5T45.0X6