C0CRXN   ; CCDCCR/GPL - CCR RXN utilities; 12/6/08
 ;;0.1;CCDCCR;nopatch;noreleasedate
 ;Copyright 2008 WorldVistA.  Licensed under the terms of the GNU
 ;General Public License See attached copy of the License.
 ;
 ;This program is free software; you can redistribute it and/or modify
 ;it under the terms of the GNU General Public License as published by
 ;the Free Software Foundation; either version 2 of the License, or
 ;(at your option) any later version.
 ;
 ;This program is distributed in the hope that it will be useful,
 ;but WITHOUT ANY WARRANTY; without even the implied warranty of
 ;MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 ;GNU General Public License for more details.
 ;
 ;You should have received a copy of the GNU General Public License along
 ;with this program; if not, write to the Free Software Foundation, Inc.,
 ;51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 ;
 W "This is the CCR RXNORM Utility Library ",!
 W !
 Q
 ;
EXPAND ; MAIN ROUTINE TO CREATE THE C0C RXNORM VUID EXPANSION FILE (176.112)
 ; READ EACH RECORD FROM 176.111 AND USE THE VUID TO LOOK UP THE RXNORM
 ; CODE FROM 176.001 (RXNORM CONCEPTS)
 ; POPULATE ALL FIELDS IN 176.112 AND SET "NEW" TO "Y" IF 176.111 DOES NOT 
 ; ALREADY HAVE AN RXNORM CODE.
 ; ADD THE RXNORM TEXT FIELD TO EVERY RECORD (NOT PRESENT IN 176.111)
 ; AND COMPARE THE RXNORM TEXT FIELD WITH THE VUID TEXT FIELD, SETTING THE 
 ; "DIFFERENT TEXT" FIELD TO "Y" IF THERE ARE DIFFERENCES
 ; USES SUPPORT ROUTINES FROM C0CRNF.m
 N C0CFDA,C0CA,C0CB,C0CZX ;FDA WORK ARRAY, RNF ARRAYS, AND IEN ITERATOR
 N C0CFVA,C0CFRXN ; CLOSED ROOTS FOR SOURCE FILES
 N C0CF ; CLOSED ROOT FOR DESTINATION FILE
 S C0CVA=$$FILEREF^C0CRNF(176.111) ; C0C PHARMACY VA RXNORM MAPPING FILE
 S C0CFRXN=$$FILEREF^C0CRNF(176.001) ; CLOSED ROOT FOR RXNORM CONCEPT FILE
 S C0CF=$$FILEREF^C0CRNF(176.112) ; C0C RXNORM VUID MAPPING EXPANSION FILE
 W C0CVA,C0CFRXN,C0CF,!
 S C0CZX=""
 ; F  S C0CZX=
 Q
 ;
SETFDA(C0CSN,C0CSV) ; INTERNAL ROUTINE TO MAKE AN FDA ENTRY FOR FIELD C0CSN
 ; TO SET TO VALUE C0CSV.
 ; C0CFDA,C0CA,C0CZX ARE ASSUMED FROM THE CALLING ROUTINE
 ; C0CSN,C0CSV ARE PASSED BY VALUE
 ;
 N C0CSI,C0CSJ
 S C0CSI=$$ZFILE(C0CSN,"C0CA") ; FILE NUMBER
 S C0CSJ=$$ZFIELD(C0CSN,"C0CA") ; FIELD NUMBER
 S C0CFDA(C0CZX,C0CSI,C0CZX_",",C0CSJ)=C0CSV
 Q
ZFILE(ZFN,ZTAB) ; EXTRINSIC TO RETURN FILE NUMBER FOR FIELD NAME PASSED
 ; BY VALUE IN ZFN. FILE NUMBER IS PIECE 1 OF C0CA(ZFN)
 ; IF ZTAB IS NULL, IT DEFAULTS TO C0CA
 I '$D(ZTAB) S ZTAB="C0CA"
 Q $P(@ZTAB@(ZFN),"^",1)
ZFIELD(ZFN,ZTAB) ;EXTRINSIC TO RETURN FIELD NUMBER FOR FIELD NAME PASSED
 ; BY VALUE IN ZFN. FILE NUMBER IS PIECE 2 OF C0CA(ZFN)
 ; IF ZTAB IS NULL, IT DEFAULTS TO C0CA
 I '$D(ZTAB) S ZTAB="C0CA"
 Q $P(@ZTAB@(ZFN),"^",2)
ZVALUE(ZFN,ZTAB) ;EXTRINSIC TO RETURN VALUE FOR FIELD NAME PASSED
 ; BY VALUE IN ZFN. FILE NUMBER IS PIECE 3 OF C0CA(ZFN)
 ; IF ZTAB IS NULL, IT DEFAULTS TO C0CA
 I '$D(ZTAB) S ZTAB="C0CA"
 Q $P(@ZTAB@(ZFN),"^",3)
 ;
