STANDARD DATA DICTIONARY #757 -- MAJOR CONCEPT MAP FILE                                                           6/27/25    PAGE 1
STORED IN ^LEX(757,  (896548 ENTRIES)   SITE: WWW.BMIRWIN.COM   UCI: VISTA,VISTA                                   (VERSION 2.0)   

DATA          NAME                  GLOBAL        DATA
ELEMENT       TITLE                 LOCATION      TYPE
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This file is a map of Major Concepts within the Lexicon Utility and contained in the expression file (#757.01).  While the primary
purpose of this file is for file maintenance, it also supports various other functions such as the display of classification codes
by linking concepts to codes and the ability to filter out unwanted search responses by linking concepts to semantic classes and
types.  


              DD ACCESS: @
              RD ACCESS: @
              WR ACCESS: @
             DEL ACCESS: @
           LAYGO ACCESS: @
           AUDIT ACCESS: @

POINTED TO BY: MAJOR CONCEPT field (#.01) of the CONCEPT USAGE File (#757.001) 
               MAJOR CONCEPT field (#1) of the EXPRESSIONS File (#757.01) 
               MAJOR CONCEPT field (#3) of the CODES File (#757.02) 
               MAJOR CONCEPT field (#.01) of the SEMANTIC MAP File (#757.1) 
               

CROSS
REFERENCED BY: EXPRESSION(B)



757,.01       EXPRESSION             0;1 POINTER TO EXPRESSIONS FILE (#757.01) (Required)

              OUTPUT TRANSFORM: S Y=$P(^LEX(757.01,Y,1),U,1)
              LAST EDITED:      APR 19, 1993 
              DESCRIPTION:      Pointer to the clinical expression in the Expression file (#757.01) which represents the preferred
                                term for the Major Concept.  

                                UNEDITABLE
              CROSS-REFERENCE:  757^B 
                                1)= S ^LEX(757,"B",$E(X,1,30),DA)=""
                                2)= K ^LEX(757,"B",$E(X,1,30),DA)
                                ^LEX(757,"B",MCE,IEN) - where MCE is a pointer to the expression in the Expression file #757.01
                                which represents a clinical Major Concept Expression, and IEN is the Internal Entry Number in the
                                Major Concept Map file #757 where this pointer is located.  



757,1         GROUP                  0;2 POINTER TO EXPRESSIONS FILE (#757.01)

              LAST EDITED:      JUL 26, 1995 
              DESCRIPTION:      This field is intended to provide applications the ability to group terms by categories, such as
                                Cardiovascular, Pulmonary, etc.  



      FILES POINTED TO                      FIELDS

EXPRESSIONS (#757.01)             EXPRESSION (#.01)
                                  GROUP (#1)



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