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2025 ICD-10-CM Drugs and Chemicals: Substances Starting with "O"

The 2025 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 " O."

Alphabetically Paginated Substances in the Table of Drugs and Chemicals

ICD-10-CM Table of Drugs & Chemicals - Index O

SubstancePoisoning
Accidental
(unintentional)		Poisoning
Accidental
self-harm		Poisoning
Assault		Poisoning
Undetermined		Adverse
effect		Underdosing
Obidoxime chlorideT50.6X1T50.6X2T50.6X3T50.6X4T50.6X5T50.6X6
Octafonium (chloride)T49.3X1T49.3X2T49.3X3T49.3X4T49.3X5T49.3X6
Octamethyl pyrophos-phoramideT60.0X1T60.0X2T60.0X3T60.0X4  
OctanoinT50.991T50.992T50.993T50.994T50.995T50.996
Octatropine methyl-bromideT44.3X1T44.3X2T44.3X3T44.3X4T44.3X5T44.3X6
OctotiamineT45.2X1T45.2X2T45.2X3T45.2X4T45.2X5T45.2X6
Octoxinol (9)T49.8X1T49.8X2T49.8X3T49.8X4T49.8X5T49.8X6
OctreotideT38.991T38.992T38.993T38.994T38.995T38.996
Octyl nitriteT46.3X1T46.3X2T46.3X3T46.3X4T46.3X5T46.3X6
OestradiolT38.5X1T38.5X2T38.5X3T38.5X4T38.5X5T38.5X6
OestriolT38.5X1T38.5X2T38.5X3T38.5X4T38.5X5T38.5X6
OestrogenT38.5X1T38.5X2T38.5X3T38.5X4T38.5X5T38.5X6
OestroneT38.5X1T38.5X2T38.5X3T38.5X4T38.5X5T38.5X6
OfloxacinT36.8X1T36.8X2T36.8X3T36.8X4T36.8X5T36.8X6
Oil (of)T65.891T65.892T65.893T65.894  
Oil (of)
  »bitter almond
T65.891T65.892T65.893T65.894  
Oil (of)
  »cloves
T65.891T65.892T65.893T65.894  
Oil (of)
  »colors
T65.891T65.892T65.893T65.894  
Oil (of)
  »fumes
T65.891T65.892T65.893T65.894  
Oil (of)
  »lubricating
T65.891T65.892T65.893T65.894  
Oil (of)
  »Niobe
T65.891T65.892T65.893T65.894  
Oil (of)
  »vitriol (liquid)
T65.891T65.892T65.893T65.894  
Oil (of)
  »vitriol (liquid)
    »fumes
T65.891T65.892T65.893T65.894  
Oil (of)
  »wintergreen (bitter) NEC
T65.891T65.892T65.893T65.894  
Oily preparation (for skin)T49.3X1T49.3X2T49.3X3T49.3X4T49.3X5T49.3X6
Ointment NECT49.3X1T49.3X2T49.3X3T49.3X4T49.3X5T49.3X6
OlanzapineT43.591T43.592T43.593T43.594T43.595T43.596
OleanderT62.2X1T62.2X2T62.2X3T62.2X4  
OleandomycinT36.3X1T36.3X2T36.3X3T36.3X4T36.3X5T36.3X6
OleandrinT46.0X1T46.0X2T46.0X3T46.0X4T46.0X5T46.0X6
Oleic acidT46.6X1T46.6X2T46.6X3T46.6X4T46.6X5T46.6X6
Oleovitamin AT45.2X1T45.2X2T45.2X3T45.2X4T45.2X5T45.2X6
Oleum riciniT47.2X1T47.2X2T47.2X3T47.2X4T47.2X5T47.2X6
Olive oil (medicinal) NECT47.4X1T47.4X2T47.4X3T47.4X4T47.4X5T47.4X6
OlivomycinT45.1X1T45.1X2T45.1X3T45.1X4T45.1X5T45.1X6
OlsalazineT47.8X1T47.8X2T47.8X3T47.8X4T47.8X5T47.8X6
OmeprazoleT47.1X1T47.1X2T47.1X3T47.1X4T47.1X5T47.1X6
OMPAT60.0X1T60.0X2T60.0X3T60.0X4  
OncovinT45.1X1T45.1X2T45.1X3T45.1X4T45.1X5T45.1X6
OndansetronT45.0X1T45.0X2T45.0X3T45.0X4T45.0X5T45.0X6
OphthaineT41.3X1T41.3X2T41.3X3T41.3X4T41.3X5T41.3X6
OphtheticT41.3X1T41.3X2T41.3X3T41.3X4T41.3X5T41.3X6
Opiate NECT40.601T40.602T40.603T40.604T40.605T40.606
Opiate NEC
  »antagonists
T40.601T40.602T40.603T40.604T40.605T40.606
Opioid NECT40.2X1T40.2X2T40.2X3T40.2X4T40.2X5T40.2X6
OpipramolT43.011T43.012T43.013T43.014T43.015T43.016
Opium alkaloids (total)T40.0X1T40.0X2T40.0X3T40.0X4T40.0X5T40.0X6
Opium alkaloids (total)
  »standardized powdered
T40.0X1T40.0X2T40.0X3T40.0X4T40.0X5T40.0X6
Opium alkaloids (total)
  »tincture (camphorated)
T40.0X1T40.0X2T40.0X3T40.0X4T40.0X5T40.0X6
OraconT38.4X1T38.4X2T38.4X3T38.4X4T38.4X5T38.4X6
OragrafinT50.8X1T50.8X2T50.8X3T50.8X4T50.8X5T50.8X6
Oral contraceptivesT38.4X1T38.4X2T38.4X3T38.4X4T38.4X5T38.4X6
Oral rehydration saltsT50.3X1T50.3X2T50.3X3T50.3X4T50.3X5T50.3X6
OrazamideT50.991T50.992T50.993T50.994T50.995T50.996
OrciprenalineT48.291T48.292T48.293T48.294T48.295T48.296
OrganidinT48.4X1T48.4X2T48.4X3T48.4X4T48.4X5T48.4X6
Organonitrate NECT46.3X1T46.3X2T46.3X3T46.3X4T46.3X5T46.3X6
OrganophosphatesT60.0X1T60.0X2T60.0X3T60.0X4  
OrimuneT50.B91T50.B92T50.B93T50.B94T50.B95T50.B96
OrinaseT38.3X1T38.3X2T38.3X3T38.3X4T38.3X5T38.3X6
OrmeloxifeneT38.6X1T38.6X2T38.6X3T38.6X4T38.6X5T38.6X6
OrnidazoleT37.3X1T37.3X2T37.3X3T37.3X4T37.3X5T37.3X6
Ornithine aspartateT50.991T50.992T50.993T50.994T50.995T50.996
OrnoprostilT47.1X1T47.1X2T47.1X3T47.1X4T47.1X5T47.1X6
Orphenadrine (hydrochloride)T42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
Ortal (sodium)T42.3X1T42.3X2T42.3X3T42.3X4T42.3X5T42.3X6
Orthoboric acidT49.0X1T49.0X2T49.0X3T49.0X4T49.0X5T49.0X6
Orthoboric acid
  »ENT agent
T49.0X1T49.0X2T49.0X3T49.0X4T49.0X5T49.0X6
Orthoboric acid
  »ophthalmic preparation
T49.0X1T49.0X2T49.0X3T49.0X4T49.0X5T49.0X6
OrthocaineT41.3X1T41.3X2T41.3X3T41.3X4T41.3X5T41.3X6
OrthodichlorobenzeneT53.7X1T53.7X2T53.7X3T53.7X4  
Ortho-NovumT38.4X1T38.4X2T38.4X3T38.4X4T38.4X5T38.4X6
Orthotolidine (reagent)T54.2X1T54.2X2T54.2X3T54.2X4  
Osmic acid (liquid)T54.2X1T54.2X2T54.2X3T54.2X4  
Osmic acid (liquid)
  »fumes
T54.2X1T54.2X2T54.2X3T54.2X4  
Osmotic diureticsT50.2X1T50.2X2T50.2X3T50.2X4T50.2X5T50.2X6
Otilonium bromideT44.3X1T44.3X2T44.3X3T44.3X4T44.3X5T44.3X6
Otorhinolaryngological drug NECT49.6X1T49.6X2T49.6X3T49.6X4T49.6X5T49.6X6
Ouabain (e)T46.0X1T46.0X2T46.0X3T46.0X4T46.0X5T46.0X6
OvarianT38.5X1T38.5X2T38.5X3T38.5X4T38.5X5T38.5X6
Ovarian
  »hormone
T38.5X1T38.5X2T38.5X3T38.5X4T38.5X5T38.5X6
Ovarian
  »stimulant
T38.5X1T38.5X2T38.5X3T38.5X4T38.5X5T38.5X6
OvralT38.4X1T38.4X2T38.4X3T38.4X4T38.4X5T38.4X6
OvulenT38.4X1T38.4X2T38.4X3T38.4X4T38.4X5T38.4X6
Ox bile extractT47.5X1T47.5X2T47.5X3T47.5X4T47.5X5T47.5X6
OxacillinT36.0X1T36.0X2T36.0X3T36.0X4T36.0X5T36.0X6
Oxalic acidT54.2X1T54.2X2T54.2X3T54.2X4  
Oxalic acid
  »ammonium salt
T54.2X1T54.2X2T54.2X3T54.2X4  
OxamniquineT37.4X1T37.4X2T37.4X3T37.4X4T37.4X5T37.4X6
OxanamideT43.591T43.592T43.593T43.594T43.595T43.596
OxandroloneT38.7X1T38.7X2T38.7X3T38.7X4T38.7X5T38.7X6
OxantelT37.4X1T37.4X2T37.4X3T37.4X4T37.4X5T37.4X6
Oxapium iodideT44.3X1T44.3X2T44.3X3T44.3X4T44.3X5T44.3X6
OxaprotilineT43.021T43.022T43.023T43.024T43.025T43.026
OxaprozinT39.311T39.312T39.313T39.314T39.315T39.316
OxatomideT45.0X1T45.0X2T45.0X3T45.0X4T45.0X5T45.0X6
OxazepamT42.4X1T42.4X2T42.4X3T42.4X4T42.4X5T42.4X6
OxazimedrineT50.5X1T50.5X2T50.5X3T50.5X4T50.5X5T50.5X6
OxazolamT42.4X1T42.4X2T42.4X3T42.4X4T42.4X5T42.4X6
Oxazolidine derivativesT42.2X1T42.2X2T42.2X3T42.2X4T42.2X5T42.2X6
Oxazolidinedione (derivative)T42.2X1T42.2X2T42.2X3T42.2X4T42.2X5T42.2X6
OxcarbazepineT42.1X1T42.1X2T42.1X3T42.1X4T42.1X5T42.1X6
OxedrineT44.4X1T44.4X2T44.4X3T44.4X4T44.4X5T44.4X6
Oxeladin (citrate)T48.3X1T48.3X2T48.3X3T48.3X4T48.3X5T48.3X6
OxendoloneT38.5X1T38.5X2T38.5X3T38.5X4T38.5X5T38.5X6
OxetacaineT41.3X1T41.3X2T41.3X3T41.3X4T41.3X5T41.3X6
OxethazineT41.3X1T41.3X2T41.3X3T41.3X4T41.3X5T41.3X6
OxetoroneT39.8X1T39.8X2T39.8X3T39.8X4T39.8X5T39.8X6
OxiconazoleT49.0X1T49.0X2T49.0X3T49.0X4T49.0X5T49.0X6
Oxidizing agent NECT54.91T54.92T54.93T54.94  
OxipurinolT50.4X1T50.4X2T50.4X3T50.4X4T50.4X5T50.4X6
OxitriptanT43.291T43.292T43.293T43.294T43.295T43.296
Oxitropium bromideT48.6X1T48.6X2T48.6X3T48.6X4T48.6X5T48.6X6
OxodipineT46.1X1T46.1X2T46.1X3T46.1X4T46.1X5T46.1X6
OxolamineT48.3X1T48.3X2T48.3X3T48.3X4T48.3X5T48.3X6
Oxolinic acidT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
OxomemazineT43.3X1T43.3X2T43.3X3T43.3X4T43.3X5T43.3X6
OxophenarsineT37.3X1T37.3X2T37.3X3T37.3X4T37.3X5T37.3X6
OxprenololT44.7X1T44.7X2T44.7X3T44.7X4T44.7X5T44.7X6
OxsoralenT49.3X1T49.3X2T49.3X3T49.3X4T49.3X5T49.3X6
OxtriphyllineT48.6X1T48.6X2T48.6X3T48.6X4T48.6X5T48.6X6
Oxybate sodiumT41.291T41.292T41.293T41.294T41.295T41.296
OxybuprocaineT41.3X1T41.3X2T41.3X3T41.3X4T41.3X5T41.3X6
OxybutyninT44.3X1T44.3X2T44.3X3T44.3X4T44.3X5T44.3X6
OxychloroseneT49.0X1T49.0X2T49.0X3T49.0X4T49.0X5T49.0X6
OxycodoneT40.2X1T40.2X2T40.2X3T40.2X4T40.2X5T40.2X6
OxyfedrineT46.3X1T46.3X2T46.3X3T46.3X4T46.3X5T46.3X6
OxygenT41.5X1T41.5X2T41.5X3T41.5X4T41.5X5T41.5X6
OxyloneT49.0X1T49.0X2T49.0X3T49.0X4T49.0X5T49.0X6
Oxylone
  »ophthalmic preparation
T49.0X1T49.0X2T49.0X3T49.0X4T49.0X5T49.0X6
OxymesteroneT38.7X1T38.7X2T38.7X3T38.7X4T38.7X5T38.7X6
OxymetazolineT48.5X1T48.5X2T48.5X3T48.5X4T48.5X5T48.5X6
OxymetholoneT38.7X1T38.7X2T38.7X3T38.7X4T38.7X5T38.7X6
OxymorphoneT40.2X1T40.2X2T40.2X3T40.2X4T40.2X5T40.2X6
OxypertineT43.591T43.592T43.593T43.594T43.595T43.596
OxyphenbutazoneT39.2X1T39.2X2T39.2X3T39.2X4T39.2X5T39.2X6
OxyphencyclimineT44.3X1T44.3X2T44.3X3T44.3X4T44.3X5T44.3X6
OxyphenisatineT47.2X1T47.2X2T47.2X3T47.2X4T47.2X5T47.2X6
Oxyphenonium bromideT44.3X1T44.3X2T44.3X3T44.3X4T44.3X5T44.3X6
OxypolygelatinT45.8X1T45.8X2T45.8X3T45.8X4T45.8X5T45.8X6
Oxyquinoline (derivatives)T37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
OxytetracyclineT36.4X1T36.4X2T36.4X3T36.4X4T36.4X5T36.4X6
Oxytocic drug NECT48.0X1T48.0X2T48.0X3T48.0X4T48.0X5T48.0X6
Oxytocin (synthetic)T48.0X1T48.0X2T48.0X3T48.0X4T48.0X5T48.0X6
OzoneT59.891T59.892T59.893T59.894