SUPPLEMENTARY CLASSIFICATION OF EXTERNAL CAUSES OF INJURY AND POISONING (E000-E999)
This section is provided to permit the classification of environmental events, circumstances, and conditions as the cause of injury, poisoning, and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used in addition to a code from one of the main chapters of ICD-9-CM, indicating the nature of the condition. Certain other conditions which may be stated to be due to external causes are classified in Chapters 1 to 16 of ICD-9-CM. For these, the "E" code classification should be used as an additional code for more detailed analysis.
Machinery accidents [other than those connected with transport] are classifiable to category E919, in which the fourth digit allows a broad classification of the type of machinery involved.
Categories for "late effects" of accidents and other external causes are to be found at E929, E959, E969, E977, E989, and E999.
DRUGS, MEDICINAL AND BIOLOGICAL SUBSTANCES CAUSING ADVERSE EFFECTS IN THERAPEUTIC USE (E930-E949)
Includes:
correct drug properly administered in therapeutic or prophylactic dosage, as the cause of any adverse effect including allergic or hypersensitivity reactions
Excludes:
accidental overdose of drug and wrong drug given or taken in error (E850.0-E858.9)
accidents in the technique of administration of drug or biological substance such as accidental puncture during injection, or contamination of drug (E870.0-E876.9)
administration with suicidal or homicidal intent or intent to harm, or in circumstances classifiable to E950.0-E950.5, E962.0, E980.0-E980.5
see Alphabetic Index for more complete list of specific drugs to be classified under the fourth-digit subdivisions. The American Hospital Formulary numbers can be used to classify new drugs listed by the American Hospital Formulary Service (AHFS). see appendix C.
E930: Antibiotics
Excludes:
that used as eye, ear, nose, and throat [ENT], and local anti-infectives (E946.0-E946.9)
E931: Other anti-infectives
Excludes:
ENT, and local anti-infectives (E946.0-E946.9)
E932: Hormones and synthetic substitutes
E933: Primarily systemic agents
E934: Agents primarily affecting blood constituents
E935: Analgesics, antipyretics, and antirheumatics
E936: Anticonvulsants and anti-Parkinsonism drugs
E937: Sedatives and hypnotics
E938: Other central nervous system depressants and anesthetics
E939: Psychotropic agents
E940: Central nervous system stimulants
E941: Drugs primarily affecting the autonomic nervous system
E942: Agents primarily affecting the cardiovascular system
E943: Agents primarily affecting gastrointestinal system
E944: Water, mineral, and uric acid metabolism drugs
E945: Agents primarily acting on the smooth and skeletal muscles and respiratory system
E946: Agents primarily affecting skin and mucous membrane, ophthalmological, otorhinolaryngological, and dental drugs
E947: Other and unspecified drugs and medicinal substances
E948: Bacterial vaccines
E949: Other vaccines and biological substances
Excludes:
gamma globulin (E934.6)

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