Table 1.

Electrocardiographic criteria for myocardial infarction and ischemia by Novacode and Minnesota Code

Category	Novacode	Minnesota Code*
Major Q waves	5.1	C.1
Moderate Q waves with ST-T abnormalities	5.2	C.2
Moderate Q waves without ST-T abnormalities	5.3	C.3
Minor Q waves with ST-T abnormalities	5.4	C.4
Isolated/major ST abnormalities	5.5	C.5
Isolated/major T wave abnormalities	5.6	C.6
Minor Q waves	5.7	C.7
Minor ST-T abnormalities	5.8	C.8
No significant Q waves or ST-T	5.0	C.0
Electrocardiographic myocardial infarction by  Novacode and Minnesota Code	5.1–5.4	C.1–C.4
ECG major Q or major ST-T abnormalities by  Novacode and Minnesota Code	5.1–5.6	C.1–C.6

See Zhang et al^‡ for detailed definition.

^*C standard for combined code of Minnesota Codes 1, 4, and 5 to match hierarchical codes in Novacode 5.