How to parse the HL7 DateTime with nHapi | Division by Zero

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How to parse the HL7 DateTime with nHapi

How to parse the HL7 DateTime with nHapi

Written by Division by Zero

Tuesday, 30 August 2011 08:41

Recently someone asked me how to parse the DateTime form a HL7 message to a .Net DateTime. In may I wrote a post on how to read SIU messages. The last part was some code on how to parse this DateTime. Since it was quite a big post, this bit was quite hidden. So here's how to parse the HL7 DateTime.

I have copied the code from the earlier post (yes.. that's how lazy I am!).

TQ tq = message.SCH.GetAppointmentTimingQuantity().First();
TS startTime = tq.StartDateTime;
DateTime result = new DateTime(startTime.TimeOfAnEvent.Year, startTime.TimeOfAnEvent.Month, startTime.TimeOfAnEvent.Day, startTime.TimeOfAnEvent.Hour, startTime.TimeOfAnEvent.Minute, startTime.TimeOfAnEvent.Second);

In this code I interpret the TS data type within the TQ data type. There are a few data types concerning time.

Data Type	Name	Description
DR	Date/time range	Scheduling Only: <range start date/time (TS)> ^ <range end date/time (TS)>
RI	Repeat interval	Scheduling Only: <repeat pattern (IS)> ^ <explicit time interval (ST)>
SCV	Scheduling class value pair	Scheduling Only: <parameter class (IS)> ^ <parameter value (IS)>
TQ	Timing/quantity	<quantity (CQ)> ^ <interval ()> ^ <duration ()> ^ <start date/time (TS)> ^ <end date/time (TS)> ^ <priority (ID)> ^ <condition (ST)> ^ <text (TX)> ^ <conjunction (ID)> ^ <order sequencing (*)>

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