Monitoring the occurrence of diabetes mellitus and its major complications: the combined use of different administrative databases

Table 1 ICD-9-CM codes for the identification of complications in Hospital Discharge Records

Condition	ICD-9-CM codes	Fields
Ischemic heart disease	410xx, 411xx, 412, 413x, 414xx	Primary diagnosis
Acute myocardial infarction	410x1	All diagnostic fields
Heart failure	428x, 7855x	Primary diagnosis
Cerebrovascular diseases	430, 431, 432x, 433xx, 434xx, 435, 436, 437x, 438	Primary diagnosis
	3811, 3812, 3831, 3832, 3841, 3842	All procedural fields
Stroke	430, 431, 433x1, 434x1, 436	Primary diagnosis
Peripheral vascular disease	2507x, 440xx, 442xx, 443xx, 444xx, 447x, 459xx, 7854	Primary diagnosis
	V434, 3813, 3814, 3815, 3816, 3818, 3925, 3929	All procedural fields
Low limb amputations	895x, 896x, 897x	All diagnostic fields
	8410, 8411, 8412, 8413, 8414, 8415, 8416, 8417, 8418, 8419, 8622	All procedural fields
Kidney diseases	2504x, 403xx, 404xx, 581xx, 584x, 585, 586, 588x	Primary diagnosis
	3895, 3927, 3942, 3995, 5493	All procedural fields

ISSN: 1475-2840