Segments

Segment identifier numbers and descriptions are:

  • REQ: Request Transaction Header
  • RES: Response Header
  • TRN: Transaction Start
  • 01: Patient
  • 02: Pharmacy Provider
  • 03: Prescriber
  • 04: Insurance
  • 05: Coordination of Benefits/Other Payments
  • 06: Worker’s Compensation
  • 07: Claim
  • 08: DUR/PPS
  • 09: Coupon
  • 10: Compound
  • 11: Pricing
  • 12: Prior Authorization
  • 13: Clinical
  • 20: Response Message
  • 21: Response Status
  • 22: Response Claim
  • 23: Response Pricing
  • 24: Response DUR/PPS
  • 25: Response Insurance
  • 26: Response Prior Authorization

Header segments do not have any identifiers defined under NCPDP Telecom. These are identified by being the first segment in a transmission.

TRN is not an NCPDP Telecom segment. This is used to start a transaction.

All other segments are designated by the standard NCPDP Telecom identifier preceded by S. For example, the segment 01 is designated S01. Segment names must contain at least one letter.