Table 1.

ICD-10 drowning codes and other relevant codes (n=1375)

As referred to within this study	ICD-10 code	Definition	Number of cases as the UCoD (n)
Primary drowning codes (W65-74 Accidental drowning and submersion)	W65	Drowning and submersion while in bathtub	40
	W66	Drowning and submersion following fall into bathtub	9
	W67	Drowning and submersion while in swimming pool	94
	W68	Drowning and submersion following fall into swimming pool	62
	W69	Drowning and submersion while in natural water	384
	W70	Drowning and submersion following fall into natural water	156
	W73	Other specified drowning and submersion	45
	W74	Unspecified drowning and submersion	76
Drowning-related codes	T75.1	Drowning and non-fatal submersion	3
	V90	Drowning and submersion due to accident to watercraft	78
	V92	Drowning and submersion due to accident on board watercraft, without accident to watercraft	50
	X38	Victim of flood	34
	Y21	Drowning and submersion, undetermined intent	84
Intentional drowning code	X71	Intentional self-harm by drowning and submersion	19
	X92	Assault by drowning and submersion	0
Examples of non-drowning codes	G40	Epilepsy	40
	I25	Chronic ischaemic heart disease	23
	R99	Ill-defined and unknown cause of mortality	15
Total			1212

ICD, International Classification of Diseases; UCoD, underlying cause of death.