Re: [HAPI-devel] DG1 segments repetition.

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I thought I would give your example a try, because you had mentioned ‘phantom’ DG1s, something I hadn’t seen. Well, I hadn’t used getNames before, so I was curious.

So, yes, I did see getnames listing DG1 even when the example didn’t contain one.

I also noticed that your example message provided earlier with have zero entries in the List of DG1s because none of them have content in the identifier field.

My complete code is as follows, so you can check if I made an invalid assumption.  Not I did change it somewhat.

Thanks for the opportunity to learn some more about getNames.

Printstructure is your friend. ☺

Ian

package hapiexamples;

import ca.uhn.hl7v2.DefaultHapiContext;
import ca.uhn.hl7v2.HL7Exception;
import ca.uhn.hl7v2.HapiContext;
import ca.uhn.hl7v2.model.Message;
import ca.uhn.hl7v2.model.v24.segment.DG1;
import ca.uhn.hl7v2.parser.CanonicalModelClassFactory;
import ca.uhn.hl7v2.parser.PipeParser;
import ca.uhn.hl7v2.validation.builder.support.NoValidationBuilder;
import java.util.List;
import java.util.ArrayList;

/**
*
* @author VowlesI
*/
public class Dg1ZdgExample {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws HL7Exception {

        String msg = "MSH|^~\\&|SCM|SCM|HL7ADT||20130114001147||ADT^A08|8456356603013|P|2.3\r"
                + "PID||5012223067^^^Corporate Num|50730137^^^EAST MRN|300000003^^^EID|Moose^Bullwinkle^J||19091011|F||1|1 Roanoke St^^New York^NY^11111^USA^Home||(888)111-1111^^^^^888^111-1111^^Home|^^^^^^^^Cellular|ENG|W|CA|3000000039^^^EAST MRN|111165812|11119791||Hispanic Origin  \r"
                + "NK1|1|Bugs^Bee|19||(888)111-1111^^^^^888^111-1111^^Home||Emergency  \r"
                + "PV1||E|ERM^^^EAST MRN|Emergency|||N20714^Chris^Bob^Bruce~1907828742^^^^^^^^^^^^NPI|||REH||||Non-Health Care||0||Emergency|3000000039^^^EAST MRN|||||||||||||||||||||Clean||||20130115001000 \r"
                + "PV2||^N|ABDOMINAL PAIN NAUSEA COLD SYM  OBX|1|ST|Intolerances||None Entered||||||X \r"
                + "DG1|1||^CHEST PAIN  DEHYDRATION  NAUSE|CHEST PAIN  DEHYDRATION  NAUSE||Visit Reason\r"
                + "ZDG|1||^CHEST PAIN  DEHYDRATION  NAUSE|CHEST PAIN  DEHYDRATION  NAUSE||Visit Reason\r"
                + "DG1|2||^CHEST PAIN  DEHYDRATION  NAUSE|CHEST PAIN  DEHYDRATION  NAUSE||Visit Reason\r"
                + "ZDG|2||^CHEST PAIN  DEHYDRATION  NAUSE|CHEST PAIN  DEHYDRATION  NAUSE||Visit Reason\r"
                + "DG1|3||^CHEST PAIN  DEHYDRATION  NAUSE|CHEST PAIN  DEHYDRATION  NAUSE||Visit Reason\r"
                + "ZDG|3||^CHEST PAIN  DEHYDRATION  NAUSE|CHEST PAIN  DEHYDRATION  NAUSE||Visit Reason\r"
                + "OBX|2|ST|Allergies||See Allergy Icon/Pt Info Tab||||||X  \r"
                + "AL1|1|Drug|quinolone antibiotics^^^^23^Multum|Swelling|facial swelling ZAL||||AL|Swelling  \r"
                + "AL1|2|Drug|quinolone topicals^^^^70^Multum|Swelling|facial swelling ZAL||||AL|Swelling  \r"
                + "IN1|1||BLUE|BLUE CROSS^MEDICARE|PO BOX 880031^^Boston^MA^02201||(888)111-1111^^^^^888^111-1111||||||||Medicare|Bugs^Bunny^M|18|19000928|1 Roanoke St^^New York^NY^11111^USA||||||||||||||||||||||||Male||||||1112223067 \r"
                + "IN2||475846521|DISABLED||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||(888)111-1111^^Phone^^^888^111-1111|||||||DISABLED\r";

        HapiContext hapiContext = new DefaultHapiContext();
        hapiContext.setValidationRuleBuilder(new NoValidationBuilder());

        final PipeParser pipeParser = hapiContext.getPipeParser();
        final Message hapiMessage = pipeParser.parse(msg);

        System.out.println("hapiMsg.printStructure() = " + hapiMessage.printStructure());
        String names[] = hapiMessage.getNames();
        List<DG1> dg1List = new ArrayList<DG1>();
        for (String name : names) {
            System.out.println("Segment Name = " + name);
            if (name.startsWith("DG1")) {
                DG1 dg = (DG1) hapiMessage.get(name);
                if (dg != null && dg.getDg13_DiagnosisCodeDG1().getCe1_Identifier().getValue() != null) {
                    dg1List.add(dg);
                }
            }
        }
        System.out.println(dg1List.size());
    }
}

From: Singh, Brijesh [mailto:Si...@ad...]
Sent: Wednesday, 12 November 2014 1:46 PM
To: James Agnew
Cc: hl7...@li...
Subject: Re: [HAPI-devel] DG1 segments repetition.

James – Thanks so much for a quick response. I followed your suggestion and added the code by calling getNames() as described below. I found that HAPI is creating a phantom DG1 segment even when the Hl7 message does not have any DG1, for that reason I’m doing an extra logic in the highlighted text below. Is it intended behavior? If yes, what is the best way of handling it?

                String Names[] = Msg.getNames();
                List<DG1> LDGs = new ArrayList<DG1>();
                for(String Name: Names){
                   if(Name == null || Name.startsWith("DG1") == false)
                     continue;
                   DG1 DG = (DG1)Msg.get(Name);
                   if(DG !=null && dg.getDiagnosisCodeDG1().getIdentifier().getValue()) !=null )
                     LDGs.add(DG);
                }

Regards,
Brijesh

From: James Agnew [mailto:jam...@gm...]
Sent: Tuesday, November 11, 2014 6:15 PM
To: Singh, Brijesh
Cc: hl7...@li...<mailto:hl7...@li...>
Subject: Re: [HAPI-devel] DG1 segments repetition.

Hi Brijesh,
You're right, the custom segments are causing an issue since the parser csn't see subsequent DG1 repetitions as actual repetitions.
The easiest way to do this would be to call
MessageInstance.getAll("DG1")
followed by
MessageInstance.getAll("DG12")
followed by
MessageInstance.getAll("DG13")
etc.. Basically HAPI creates nonstandard segments for each of the following DG1s by adding a sequential number to the end.
If you wanted to be more fancy, you could create a custom structure that has a group containing the custom segment as well, or you could override the parser and use string maniulation to remove the Z-segments before parsing.. But the method above is definitely the least work.
Incidentally MessageInstance.getNames() will give you the names of all the segments (including the "DG1[number]" ones) so you will know how many there are.
Cheers,
James

On Tue, Nov 11, 2014 at 2:06 PM, Singh, Brijesh <Si...@ad...<mailto:Si...@ad...>> wrote:
Hi – I’m using HAPI library(2.2) to parse the below message and calling the method getAll(“DG1”) ( Structure[] Structs = MessageInstance.getAll(“DG1”) ) to retrieve the DG1 segments. I’m having issues getting all DG1 segments. From the below message, able to retrieve only one DG1 segment. Looks like the custom segment (ZDG) is in the middle of repeating DG1 segments and breaking the repetition.

Can you please suggest if I can use other API methods to retrieve all DG1 ( 3 in the below case) ignoring ZDG segments?

Thanks for your help.

MSH|^~\&|SCM|SCM|HL7ADT||20130114001147||ADT^A08|8456356603013|P|2.3
PID||5012223067<tel:5012223067>^^^Corporate Num|50730137^^^EAST MRN|300000003^^^EID|Moose^Bullwinkle^J||19091011|F||1|1 Roanoke St^^New York^NY^11111^USA^Home||(888)111-1111^^^^^888^111-1111^^Home|^^^^^^^^Cellular|ENG|W|CA|3000000039^^^EAST MRN|111165812|11119791||Hispanic Origin
NK1|1|Bugs^Bee|19||(888)111-1111^^^^^888^111-1111^^Home||Emergency
PV1||E|ERM^^^EAST MRN|Emergency|||N20714^Chris^Bob^Bruce~1907828742^^^^^^^^^^^^NPI|||REH||||Non-Health Care||0||Emergency|3000000039^^^EAST MRN|||||||||||||||||||||Clean||||20130115001000
PV2||^N|ABDOMINAL PAIN NAUSEA COLD SYM  OBX|1|ST|Intolerances||None Entered||||||X
DG1|1||^CHEST PAIN  DEHYDRATION  NAUSE|CHEST PAIN  DEHYDRATION  NAUSE||Visit Reason
ZDG|1||^CHEST PAIN  DEHYDRATION  NAUSE|CHEST PAIN  DEHYDRATION  NAUSE||Visit Reason
DG1|2||^CHEST PAIN  DEHYDRATION  NAUSE|CHEST PAIN  DEHYDRATION  NAUSE||Visit Reason
ZDG|2||^CHEST PAIN  DEHYDRATION  NAUSE|CHEST PAIN  DEHYDRATION  NAUSE||Visit Reason
DG1|3||^CHEST PAIN  DEHYDRATION  NAUSE|CHEST PAIN  DEHYDRATION  NAUSE||Visit Reason
ZDG|3||^CHEST PAIN  DEHYDRATION  NAUSE|CHEST PAIN  DEHYDRATION  NAUSE||Visit Reason
OBX|2|ST|Allergies||See Allergy Icon/Pt Info Tab||||||X
AL1|1|Drug|quinolone antibiotics^^^^23^Multum|Swelling|facial swelling ZAL||||AL|Swelling
AL1|2|Drug|quinolone topicals^^^^70^Multum|Swelling|facial swelling ZAL||||AL|Swelling
IN1|1||BLUE|BLUE CROSS^MEDICARE|PO BOX 880031^^Boston^MA^02201||(888)111-1111^^^^^888^111-1111||||||||Medicare|Bugs^Bunny^M|18|19000928|1 Roanoke St^^New York^NY^11111^USA||||||||||||||||||||||||Male||||||1112223067
IN2||475846521|DISABLED||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||(888)111-1111^^Phone^^^888^111-1111|||||||DISABLED

Regards,
Brijesh Singh

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