ICD 9 CM Codes

Excludes
localized cerebral lipidoses (330.1)
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.
Includes
correct drug properly administered in therapeutic or prophylactic dosage, as the cause of any adverse effect including allergic or hypersensitivity reactions
E930 Antibiotics causing adverse effects in therapy
E931 Other anti-infectives causing adverse effects in therapy
E932 Hormones and synthetic substitutes causing adverse effects in therapy
E933 Primarily systemic agents causing adverse effects in therapy
E934 Agents primarily affecting blood constituents causing adverse effects in therapy
E935 Analgesics, antipyretics, and antirheumatics causing adverse effects in therapy
E936 Anticonvulsants and anti-Parkinsonism drugs causing adverse effects in therapy
E937 Sedatives and hypnotics causing adverse effects in therapy
E938 Other central nervous system depressants and anesthetics causing adverse effects in therapy
E939 Psychotropic agents causing adverse effects in therapy
E940 Central nervous system stimulants causing adverse effects in therapy
E941 Drugs primarily affecting the autonomic nervous system causing adverse effects in therapy
E942 Agents primarily affecting the cardiovascular system causing adverse effects in therapy
E943 Agents primarily affecting gastrointestinal system causing adverse effects in therapy
E944 Water, mineral, and uric acid metabolism drugs causing adverse effects in therapy
E945 Agents primarily acting on the smooth and skeletal muscles and respiratory system causing adverse effects in therapy
E946 Agents primarily affecting skin and mucous membrane, ophthalmological, otorhinolaryngological, and dental drugs causing adverse effects in therapy
E947 Other and unspecified drugs and medicinal substances causing adverse effects in therapy
E948 Bacterial vaccines causing adverse effects in therapy
E949 Other vaccines and biological substances causing adverse effects in therapy