9.8.11.4 entry/procedure/effectiveTime
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#### 9.8.11.4 entry/procedure/effectiveTime

The HL7v3 IVL <TS> Data Type used for effectiveTime requires the specification of absolute dates, rather than a date relative to the date of the report.

### Note

Thus the concept "follow-up within one year" needs to be encoded as a IVL <TS> with an effectiveTime/high element value one year after the date of the report.

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