Message definition files

The message definition files are similar to those used for UN/EDIFACT. The NCPDP Formulary and Benefit files are stored in an ncpdpfab directory tree under formats.

These files are used to define the format:

  • datatypes: Primitive data types for fields.
  • fields: One line defining each field.
  • segments.idx: One line summarizing each segment.
  • segments/*: One file defining each segment. The file name is the segment identifier.
  • messages.idx: One line summarizing each message.
  • messages/*: One file defining each message. The file name is the same as the message name.
Note:  The datatypes file is in the root\formats\ncpdpfab folder. All others are in the site\formats\ncpdpfab folder.