Segment: REF Reference Identification
Position: 050
Level: Heading
Usage: Optional
Max Use: >1
Purpose: To specify identifying information
Syntax Notes:
Semantic Notes: 1 REF04 contains data relating to the value cited in REF02.
Notes:   Example: REF*L1*3920394930203*GENERAL PURPOSE!  
Data Element Summary 
  Ref. Data
  Des. Element Name Attributes
M REF01 128 Reference Identification Qualifier M ID 2/3
  Code qualifying the Reference Identification
  L1    Letters or Notes
M REF02 127 Reference Identification M AN 1/30
  Reference information as defined for a particular Transaction Set or as specified by the Reference Identification Qualifier
    "PUR" Purchasing Information  
  REF03 352 Description O AN 1/60
  A free-form description to clarify the related data elements and their content
855I4010 (004010) November 3, 1999