The type of change to the heart rhythm seen on the person's electrocardiogram (ECG), as represented by a code.
CODE 1 ST-segment elevation >= 1 mm (0.1 mV) in >= 2 contiguous limb leads
ST-segment elevation indicates greater than or equal to 1 mm (0.1 mV) elevation in 2 or more contiguous limb leads.
CODE 2 ST-segment elevation >= 2 mm (0.2 mV) in >= 2 contiguous chest leads
ST-segment elevation indicates greater than or equal to 2 mm (0.2 mV) elevation in 2 or more contiguous chest leads.
CODE 3 ST-segment depression >= 0.5 mm (0.05 mV) in >= 2 contiguous leads (includes reciprocal changes)
ST-segment depression of at least 0.5 mm (0.05 mV) in 2 or more contiguous leads (includes reciprocal changes).
CODE 4 T-wave inversion >= 1 mm (0.1 mV)
T-wave inversion of at least 1 mm (0.1 mV) including inverted T waves that are not indicative of acute MI.
CODE 5 Significant Q waves
Q waves refer to the presence of Q waves that are greater than or equal to 0.03 seconds in width and greater than or equal to 1 mm (0.1 mV) in depth in at least 2 contiguous leads.
CODE 6 Bundle branch block (BBB)
Bundle branch block pattern
CODE 7 Non-specific
Changes not meeting the above criteria.
CODE 8 No changes
No ECG changes.
CODE 9 Not stated/inadequately described
More than one code may be recorded.
Record all that apply (codes 7, 8 and 9 are excluded from multiple coding).
Supersedes Electrocardiogram (ECG) change - type, version 1, DE, NHDD, NHIMG, Superseded 01/03/2005.pdf (16.3 KB)
Has been superseded by Electrocardiogram—change type, code N Health, Standard 01/10/2008
See also Person—electrocardiogram change location, code N Health, Superseded 01/10/2008
Acute coronary syndrome (clinical) DSS Health, Superseded 01/10/2008
DSS specific information:
For Acute coronary syndrome (ACS) reporting, used to determine diagnostic strata.
Acute coronary syndrome (clinical) DSS Health, Superseded 07/12/2005