Comparing HL7 Repeatable Segment/Field to Lookup table

Awhile back the Developer community helped me with a situation I was having... How to loop through a Repeating Segment and Single Filed, example OBX().5, within a Business Process Rule and compare it against a Data Lookup table.

Well now I need to take it a step further. I need a way to loop through OBR() segment, and loop through OBR().4() and the subfield 4.1 and compare it to a Data Lookup table.

So I thought I could copy my existing function code and add another level to it, but its not returning what I would expect.

ClassMethod DoesValueExistRepeatingSegmentFields(pHL7Msg As EnsLib.HL7.Message, pSegment As %String, pField As %String, pSubField As %String, pLookupTable As %String) As %Boolean

{

            #dim tSeg as EnsLib.HL7.Segment

            set tSegCount = pHL7Msg.SegCountGet()

            set i = 1

            Set tFound = 0

            //get new values

            set tval=""

            while ((i <= tSegCount) && (tval="")) {

                        set tSeg = pHL7Msg.GetSegmentAt(i)

                        if (tSeg.Name = pSegment) {

                                    set pField2 = pField_"(*)"

                                    $$$LOGINFO(pField2)

                                    set tRepCount = pHL7Msg.GetValueAt(pField2)

                                    $$$LOGINFO(tRepCount)

                                    For tRep =1:1:tRepCount{

                                        set tID = tSeg.GetValueAt(pField_"("_tRepCount_")"_"."_pSubField)

                                         set tval= ..Lookup(pLookupTable, tID)

                                    }                        

                        }

                        set i = i + 1 

            }

            if (tval '= "")

            {

                        Q 1 

            }

            quit 0

}

 

So in a Business Routing Rule I am calling the following...

 

Can someone look over my ClassMethod above and double check my code to see why it is not capturing "tRepCount = pHL7Msg.GetValueAt(pField2)"
tRepCount is returning a 0 when it should be at least 1.

 

Thanks

Scott