BAR_P12 - Update diagnose/procedure

Segment structure for the BAR_P12 message in HL7 v2.5.1. Cardinality is shown as [min..max]; groups are in bold.

• MSH Message header [1..1]
• SFT Software segment [0..*]
• EVN Event type [1..1]
• PID Patient identification [1..1]
• PV1 Patient visit [1..1]
• DG1 Diagnosis [0..*]
• DRG Diagnosis related group [0..1]
• PROCEDURE Procedure [0..*]
  • PR1 Procedures [1..1]
  • ROL Role [0..*]