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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)

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
Format N
Maximum character length 1
Values
Value Meaning Start Date End Date
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.

References

Related content

Relation Count
Input in Derivations 0
Output in Derivations 0
Inclusion in Data Set Specifications 1
Inclusion in Data Distributions 0
As a numerator in an Indicator 0
As a denominator in an Indicator 0
As a disaggregation in an Indicator 0