======= MSH =======
3 – Sending Application
4 – Sending facility
5 – Receiving App
6 – Receiving Facility
7 – Date time of msg
9.1 – Msg Type
92. – Msg Event
10 – Msg Control Id
11 – Msg Processing Id
12- HL7 Version

======= PID =======
3.1 – InternalId
5.1 – Patient Last Name
5.2 – First Name
8.1 – M/F
11.1 – 11.5 – Pat Address
18.1 – Pat Acc Number
19.1 – Pat SSN

======= GT1=======
3.1 – Insured Last Name
3.2 – First Name
81. – DOB

======= DG1 =======
3.1 – ICD Code

======= OBR =======
2.1 – Placer Order No. (Accession Id)
3.1 – Filler Order No. (Accession Id)
4.1 – Claim Order Code
4.2 – Claim Or Cod desc
7.1 – Requested Dt
10.1 – Run By
14.1 – Sampel received dt
16.1 – Extrnl Phy Id (NPI)
22.1 – Result date time
25.1 – Status

======= OBX =======
3.1 Result Code
3.2 Result description
5.1 Result Value
6.1 Res Unit
11.1 – Res Status
14.1 – Rest date time

======= IN1 =======
3.2 – Payer id
4.1 – Payer Name
5.1 – 5.5 – Payer Add
8.1 – Grp No.
15.1 – Payer Type
16.1 – Insured Last Name
17.1 – Relation
36.1 – Policy No.