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Definition

A code set representing periods of time.

Representation

Data Type Number
Format N
Maximum character length 1

Values

Value Meaning Start Date End Date
Permissible Values 1 Less than 1 week ago
2 1 week to 1 month ago
3 More than 1 month, to 6 months ago
4 More than 6 months, to 1 year ago
5 More than 1 year, to 5 years ago
6 More than 5 years ago
Supplementary Values 9 Don't know/not sure

References

Related content

Relation Count
Data Elements implementing this Value Domain 1