Definition
Whether the Q waves identified on a person's follow-up electrocardiogram (ECG) is new, as represented by a code.
Components
Data Element (this item)
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Data Element ConceptElectrocardiogram—new Q waves indicator
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Object ClassElectrocardiogram
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PropertyElectrocardiogram Q waves
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Value DomainYes/no/not stated/inadequately described code N
Representation
This representation is based on the value domain for this data element, more information is available at " Yes/no/not stated/inadequately described code N ".Data Type | Number |
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Format | N |
Maximum character length | 1 |
Value | Meaning | Start Date | End Date | |
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Permissible Values | 1 | Yes | ||
2 | No | |||
Supplementary Values | 9 | Not stated/inadequately described |
Comments
Guide for use:
CODE 1 Yes (New Q waves)
Use this code where the follow-up ECG identifies Q waves >=0.03 seconds in width and >=1mm (0.1mV) in depth in at least 2 contiguous leads that were not seen on the initial ECG
CODE 2 No (Pre-existing Q waves)
Use this code where the follow-up ECG identifies Q waves >=0.03 seconds in width and >=1mm (0.1mV) in depth in at least 2 contiguous leads that were already seen on the initial ECG
CODE 9 Not stated/inadequately described
Includes unknown
Comments:
This data element identifies if new Q waves are present on the follow-up ECG. This information is valuable in coding transmural myocardial infarction.