HL7 CDA R2 AIS Implementation Guide

HL7 Additional Information Specification Implementation GuideCDAR2AIS0000R030hours behind UTC:For most administrative uses the receiver is concerned to know the date that the event occurred inthe time zone that was operative at the time and place where the event being described happened.The sender should send times in their local time zone.The time part is optional unless required for a specific answer part in an Additional InformationSpecification. Example, transmitting May the 31st, 2003 for an unspecified time zone:3.7.14.1 TS in the Header or EntriesDates in the header and entries that use the TS data type shall be formatted as described above.3.7.14.2 TS in the Body, Human-Decision VariantIn the body, element answer parts that are time stamps shall be included in the PCDATA of thecontent in a format understandable to a person.Examples:24 Oct 200324 Oct 2003 11:47 PM24 Nov 2003 11:47 PM EST3.7.15 Interval of Time (IVL_TS) Data TypesThe IVL_TS is like the TS data type, but has and elements whose @valueattributes indicate two points in time. The range of time between these two points is the intervalthat is represented. Either the or element can be omitted to indicate an unboundedupper or lower range.While the CDA and the Data Types specifications permit other representations for intervals intime, this implementation guide permits only representations that include the and element.An example is shown below:3.7.15.1 IVL_TS in the Header or EntriesDates in the header and entries that use the IVL_TS data type shall be formatted as describedabove.3.7.15.2 IVL_TS in the Body, Human-Decision VariantIn the body, element answer parts that are intervals of time shall be included in the PCDATA ofthe content in a format understandable to a person.April 29, 2007 – May 4, 2007 Copyright © 1998-2007 Health Level Seven, Inc. All rights reserved.Release 3.0 Draft StandardPage 65March 2007