| Substance | Poisoning | Accident | Therapeutic Use | Suicide Attempt | Assault | Undetermined |
| Gallamine | 975.2 | E858.6 | E945.2 | E950.4 | E962.0 | E980.4 |
| Gallotannic acid | 976.2 | E858.7 | E946.2 | E950.4 | E962.0 | E980.4 |
| Gamboge | 973.1 | E858.4 | E943.1 | E950.4 | E962.0 | E980.4 |
| Gamimune | 964.6 | E858.2 | E934.6 | E950.4 | E962.0 | E980.4 |
Gamma-benzene hexachloride (vapor) | 989.2 | E863.0 | - | E950.6 | E962.1 | E980.7 |
| Gamma globulin | 964.6 | E858.2 | E934.6 | E950.4 | E962.0 | E980.4 |
| Gamma Hydroxy Butyrate (GHB) | 968.4 | E855.1 | E938.4 | E950.4 | E962.0 | E980.4 |
| Gamulin | 964.6 | E858.2 | E934.6 | E950.4 | E962.0 | E980.4 |
| Ganglionic blocking agents | 972.3 | E858.3 | E942.3 | E950.4 | E962.0 | E980.4 |
| Ganja | 969.6 | E854.1 | E939.6 | E950.3 | E962.0 | E980.3 |
| Garamycin | 960.8 | E856 | E930.8 | E950.4 | E962.0 | E980.4 |
| ophthalmic preparation | 976.5 | E858.7 | E946.5 | E950.4 | E962.0 | E980.4 |
| topical NEC | 976.0 | E858.7 | E946.0 | E950.4 | E962.0 | E980.4 |
| Gardenal | 967.0 | E851 | E937.0 | E950.1 | E962.0 | E980.1 |
| Gardepanyl | 967.0 | E851 | E937.0 | E950.1 | E962.0 | E980.1 |
| Gas | 987.9 | E869.9 | - | E952.9 | E962.2 | E982.9 |
| acetylene | 987.1 | E868.1 | - | E951.8 | E962.2 | E981.8 |
incomplete combustion of see Carbon, monoxide, fuel, utility |
air contaminants, source or type not specified | 987.9 | E869.9 | - | E952.9 | E962.2 | E982.9 |
| anesthetic (general) NEC | 968.2 | E855.1 | E938.2 | E950.4 | E962.0 | E980.4 |
| blast furnace | 986 | E868.8 | - | E952.1 | E962.2 | E982.1 |
| butanesee Butane |
carbon monoxidesee Carbon, monoxide |
| chlorine | 987.6 | E869.8 | - | E952.8 | E962.2 | E982.8 |
coalsee Carbon,monoxide, coal |
| cyanide | 987.7 | E869.8 | - | E952.8 | E962.2 | E982.8 |
| dicyanogen | 987.8 | E869.8 | - | E952.8 | E962.2 | E982.8 |
| domesticsee Gas, utility |
exhaustsee Carbon, monoxide, exhaust gas |
from wood- or coal-burning stove or fireplace | 986 | E868.3 | - | E952.1 | E962.2 | E982.1 |
fuel (domestic use) see also Carbon, monoxide, fuel |
| industrial use | 986 | E868.8 | - | E952.1 | E962.2 | E982.1 |
| utility | 987.1 | E868.1 | - | E951.8 | E962.2 | E981.8 |
incomplete combustion of see Carbon, monoxide, fuel, utility |
| in mobile container | 987.0 | E868.0 | - | E951.1 | E962.2 | E981.1 |
| piped (natural) | 987.1 | E867 | - | E951.0 | E962.2 | E981.0 |
| garage | 986 | E868.2 | - | E952.0 | E962.2 | E982.0 |
| hydrocarbon NEC | 987.1 | E869.8 | - | E952.8 | E962.2 | E982.8 |
incomplete combustion of see Carbon, monoxide, fuel, utility |
| liquefied (mobile container) | 987.0 | E868.0 | - | E951.1 | E962.2 | E981.1 |
| piped | 987.0 | E867 | - | E951.0 | E962.2 | E981.0 |
| hydrocyanic acid | 987.7 | E869.8 | - | E952.8 | E962.2 | E982.8 |
| illuminatingsee Gas,utility |
incomplete combustion, any see Carbon,monoxide |
| kiln | 986 | E868.8 | - | E952.1 | E962.2 | E982.1 |
| lacrimogenic | 987.5 | E869.3 | - | E952.8 | E962.2 | E982.8 |
| marsh | 987.1 | E869.8 | - | E952.8 | E962.2 | E982.8 |
| motor exhaust, not in transit | 986 | E868.8 | - | E952.1 | E962.2 | E982.1 |
mustardsee Mustard, gas natural | 987.1 | E867 | - | E951.0 | E962.2 | E981.0 |
| nerve (war) | 987.9 | E869.9 | - | E952.9 | E962.2 | E982. |
| oils | 981 | E862.1 | - | E950.9 | E962.1 | E980.9 |
petroleum (liquefied) (distributed in mobile containers) | 987.0 | E868.0 | - | E951.1 | E962.2 | E981.1 |
| piped (pure or mixed with air) | 987.0 | E867 | - | E951.1 | E962.2 | E981.1 |
piped (manufactured) (natural) NEC | 987.1 | E867 | - | E951.0 | E962.2 | E981.0 |
| producer | 986 | E868.8 | - | E952.1 | E962.2 | E982.1 |
| propanesee Propane |
| refrigerant (freon) | 987.4 | E869.2 | - | E952.8 | E962.2 | E982.8 |
| not freon | 987.9 | E869.9 | - | E952.9 | E962.2 | E982.9 |
| sewer | 987.8 | E869.8 | - | E952.8 | E962.2 | E982.8 |
specified source NEC (see also substance specified) | 987.8 | E869.8 | - | E952.8 | E962.2 | E982.8 |
| stovesee Gas, utility |
| tear | 987.5 | E869.3 | - | E952.8 | E962.2 | E982.8 |
utility (for cooking, heating, or lighting) (piped) NEC | 987.1 | E868.1 | - | E951.8 | E962.2 | E981.8 |
incomplete combustion of see Carbon, monoxide, fuel, utilty |
| in mobile container | 987.0 | E868.0 | - | E951.1 | E962.2 | E981.1 |
| piped (natural) | 987.1 | E867 | - | E951.0 | E962.2 | E981.0 |
| water | 987.1 | E868.1 | - | E951.8 | E962.2 | E981.8 |
incomplete combustion of see Carbon, monoxide, fuel, utility |
| Gaseous substance see Gas |
| Gasoline, gasolene | 981 | E862.1 | - | E950.9 | E962.1 | E980.9 |
| vapor | 987.1 | E869.8 | - | E952.8 | E962.2 | E982.8 |
| Gastric enzymes | 973.4 | E858.4 | E943.4 | E950.4 | E962.0 | E980.4 |
| Gastrografin | 977.8 | E858.8 | E947.8 | E950.4 | E962.0 | E980.4 |
| Gastrointestinal agents | 973.9 | E858.4 | E943.9 | E950.4 | E962.0 | E980.4 |
| specified NEC | 973.8 | E858.4 | E943.8 | E950.4 | E962.0 | E980.4 |
| Gaultheria procumbens | 988.2 | E865.4 | - | E950.9 | E962.1 | E980.9 |
| Gelatin (intravenous) | 964.8 | E858.2 | E934.8 | E950.4 | E962.0 | E980.4 |
| absorbable (sponge) | 964.5 | E858.2 | E934.5 | E950.4 | E962.0 | E980.4 |
| Gelfilm | 976.8 | E858.7 | E946.8 | E950.4 | E962.0 | E980.4 |
| Gelfoam | 964.5 | E858.2 | E934.5 | E950.4 | E962.0 | E980.4 |
| Gelsemine | 970.8 | E854.3 | E940.8 | E950.4 | E962.0 | E980.4 |
| Gelsemium (sempervirens) | 988.2 | E865.4 | - | E950.9 | E962.1 | E980.9 |
| Gemonil | 967.0 | E851 | E937.0 | E950.1 | E962.0 | E980.1 |
| Gentamicin | 960.8 | E856 | E930.8 | E950.4 | E962.0 | E980.4 |
| ophthalmic preparation | 976.5 | E858.7 | E946.5 | E950.4 | E962.0 | E980.4 |
| topical NEC | 976.0 | E858.7 | E946.0 | E950.4 | E962.0 | E980.4 |
| Gentian violet | 976.0 | E858.7 | E946.0 | E950.4 | E962.0 | E980.4 |
| Gexane | 976.0 | E858.7 | E946.0 | E950.4 | E962.0 | E980.4 |
| Gila monster (venom) | 989.5 | E905.0 | - | E950.9 | E962.1 | E980.9 |
| Ginger, Jamaica | 989.89 | E866.8 | - | E950.9 | E962.1 | E980.9 |
| Gitalin | 972.1 | E858.3 | E942.1 | E950.4 | E962.0 | E980.4 |
| Gitoxin | 972.1 | E858.3 | E942.1 | E950.4 | E962.0 | E980.4 |
| Glandular extract (medicinal) NEC | 977.9 | E858.9 | E947.9 | E950.5 | E962.0 | E980.5 |
| Glaucarubin | 961.5 | E857 | E931.5 | E950.4 | E962.0 | E980.4 |
| Globin zinc insulin | 962.3 | E858.0 | E932.3 | E950.4 | E962.0 | E980.4 |
| Glucagon | 962.3 | E858.0 | E932.3 | E950.4 | E962.0 | E980.4 |
| Glucochloral | 967.1 | E852.0 | E937.1 | E950.2 | E962.0 | E980.2 |
| Glucocorticoids | 962.0 | E858.0 | E932.0 | E950.4 | E962.0 | E980.4 |
| Glucose | 974.5 | E858.5 | E944.5 | E950.4 | E962.0 | E980.4 |
| oxidase reagent | 977.8 | E858.8 | E947.8 | E950.4 | E962.0 | E980.4 |
| Glucosulfone sodium | 961.8 | E857 | E931.8 | E950.4 | E962.0 | E980.4 |
| Glue(s) | 989.89 | E866.6 | - | E950.9 | E962.1 | E980.9 |
| Glutamic acid (hydrochloride) | 973.4 | E858.4 | E943.4 | E950.4 | E962.0 | E980.4 |
| Glutalhione | 963.8 | E858.1 | E933.8 | E950.4 | E962.0 | E980.4 |
| Glutaraldehyde | 989.89 | E861.4 | - | E950.9 | E962.1 | E980.9 |
| Glutethimide (group) | 967.5 | E852.4 | E937.5 | E950.2 | E962.0 | E980.2 |
| Glycerin (lotion) | 976.3 | E858.7 | E946.3 | E950.4 | E962.0 | E980.4 |
| Glycerol (topical) | 976.3 | E858.7 | E946.3 | E950.4 | E962.0 | E980.4 |
| Glyceryl |
| gualacolate | 975.5 | E858.6 | E945.5 | E950.4 | E962.0 | E980.4 |
| triacetate (topical) | 976.0 | E858.7 | E946.0 | E950.4 | E962.0 | E980.4 |
| trinitrate | 972.4 | E858.3 | E942.4 | E950.4 | E962.0 | E980.4 |
| Glycine | 974.5 | E858.5 | E944.5 | E950.4 | E962.0 | E980.4 |
| Glycobiarsol | 961.1 | E857 | E931.1 | E950.4 | E962.0 | E980.4 |
| Glycols (ether) | 982.8 | E862.4 | - | E950.9 | E962.1 | E980.9 |
| Glycopyrrolate | 971.1 | E855.4 | E941.1 | E950.4 | E962.0 | E980.4 |
| Glymidine | 962.3 | E858.0 | E932.3 | E950.4 | E962.0 | E980.4 |
| Gold (compounds) (salts) | 965.69 | E850.6 | E935.6 | E950.0 | E962.0 | E980.0 |
| Golden sulfide of antimony | 985.4 | E866.2 | - | E950.9 | E962.1 | E980.9 |
| Goldylocks | 988.2 | E865.4 | - | E950.9 | E962.1 | E980.9 |
| Gonadal tissue extract | 962.9 | E858.0 | E932.9 | E950.4 | E962.0 | E980.4 |
| female | 962.2 | E858.0 | E932.2 | E950.4 | E962.0 | E980.4 |
| male | 962.1 | E858.0 | E932.1 | E950.4 | E962.0 | E980.4 |
| Gonadotropin | 962.4 | E858.0 | E932.4 | E950.4 | E962.0 | E980.4 |
| Grain alcohol | 980.0 | E860.1 | - | E950.9 | E962.1 | E980.9 |
| beverage | 980.0 | E860.0 | - | E950.9 | E962.1 | E980.9 |
| Gramicidin | 960.8 | E856 | E930.8 | E950.4 | E962.0 | E980.4 |
| Gratiola officinalis | 988.2 | E865.4 | - | E950.9 | E962.1 | E980.9 |
| Grease | 989.89 | E866.8 | - | E950.9 | E962.1 | E980.9 |
| Green hellebore | 988.2 | E865.4 | - | E950.9 | E962.1 | E980.9 |
| Green soap | 976.2 | E858.7 | E946.2 | E950.4 | E962.0 | E980.4 |
| Grifulvin | 960.1 | E856 | E930.1 | E950.4 | E962.0 | E980.4 |
| Griseofulvin | 960.1 | E856 | E930.1 | E950.4 | E962.0 | E980.4 |
| Growth hormone | 962.4 | E858.0 | E932.4 | E950.4 | E962.0 | E980.4 |
| Guaiacol | 975.5 | E858.6 | E945.5 | E950.4 | E962.0 | E980.4 |
| Giuaiac reagent | 977.8 | E858.8 | E947.8 | E950.4 | E962.0 | E980.4 |
| Guaifenesin | 975.5 | E858.6 | E945.5 | E950.4 | E962.0 | E980.4 |
| Guaiphenesin | 975.5 | E858.6 | E945.5 | E950.4 | E962.0 | E980.4 |
| Guanatol | 961.4 | E857 | E931.4 | E950.4 | E962.0 | E980.4 |
| Guanethidine | 972.6 | E858.3 | E942.6 | E950.4 | E962.0 | E980.4 |
| Guano | 989.89 | E866.5 | - | E950.9 | E962.1 | E980.9 |
| Guanochlor | 972.6 | E858.3 | E942.6 | E950.4 | E962.0 | E980.4 |
| Guanoctine | 972.6 | E858.3 | E942.6 | E950.4 | E962.0 | E980.4 |
| Guanoxan | 972.6 | E858.3 | E942.6 | E950.4 | E962.0 | E980.4 |