Table 1.

ICD codes used for methods of suicide in Japan

	ICD-6	ICD-7	ICD-8
	1950–1957	1958–1967	1968–1975
Suicide	E970–E979	E970–E979	E950–E959
Poisoning other than gases	E970–E971	E970–E971	E950
Hanging	E974	E974	E953
Drowning	E975	E975	E954
Others and unspecified (including “gases,” “jumping,” “cutting,” “firearms,” etc.)	E972–E973, E976–E979	E972–E973, E976–E979	E951–E952, E955–E959