Index: ccr/branches/ohum/p/C0CRXN.m
===================================================================
--- ccr/branches/ohum/p/C0CRXN.m	(revision 1333)
+++ ccr/branches/ohum/p/C0CRXN.m	(revision 1337)
@@ -1,290 +1,290 @@
-C0CRXN	  ; CCDCCR/GPL - CCR RXN utilities; 12/6/08
-	;;1.0;C0C;;May 19, 2009;Build 1
-	;Copyright 2009 George Lilly.  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,C0CC,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=$$FILEREF^C0CRNF(176.112) ; C0C RXNORM VUID MAPPING EXPANSION FILE
-	W C0CVA,C0CFRXN,C0CF,!
-	S C0CZX=0
-	S (HASRXN,NORXN,NOVUID,RXFOUND,RXMATCH,TXTMATCH)=0 ; INITIALIZE COUNTERS
-	F  S C0CZX=$O(^C0CCODES(176.111,C0CZX)) Q:+C0CZX=0  D  ; FOR EVERY RECORD
-	. K C0CA,C0CB,C0CC ; CLEAR ARRAYS
-	. D FIELDS^C0CRNF("C0CC",176.112) ;GET FIELD NAMES FOR OUTPUT FILE
-	. D GETN1^C0CRNF("C0CA",176.111,C0CZX,"","ALL") ;GET THE FIELDS
-	. I $$ZVALUE("MEDIATION CODE")="" D
-	. . S NORXN=NORXN+1 ;
-	. E  D  ; PROCESS MEDIATION CODE
-	. . S HASRXN=HASRXN+1
-	. . D SETFDA("MEDIATION CODE",$$ZVALUE("MEDIATION CODE")) ;
-	. I $$ZVALUE("VUID")="" D  ; BAD RECORD
-	. . S NOVUID=NOVUID+1
-	. . ;D SETFDA("VUID",$$ZVALUE("VUID"))
-	. E  D SETFDA("VUID TEXT",$$ZVALUE("VUID TEXT"))
-	. . ;ZWR C0CA
-	. D GETN1^C0CRNF("C0CB",176.001,$$ZVALUE("VUID"),"VUID","ALL")
-	. I $$ZVALUE("RXCUI","C0CB")'="" D  ; RXNORM FOUND
-	. . S RXFOUND=RXFOUND+1
-	. . I $$ZVALUE("MEDIATION CODE")="" D  ; THIS IS A NEW CODE
-	. . . D SETFDA("MEDIATION CODE",$$ZVALUE("RXCUI","C0CB"))
-	. . . D SETFDA("NEW","Y") ;FLAG RECORD HAS HAVING NEW RXNORM
-	. . W "RXNORM=",$$ZVALUE("RXCUI","C0CB")," ",$$ZVALUE("STR","C0CB"),!
-	. . W "VUID TEXT: ",$$ZVALUE("VUID TEXT"),!
-	. . I $$ZVALUE("VUID TEXT")=$$ZVALUE("STR","C0CB") S TXTMATCH=TXTMATCH+1
-	. . E  D  ;
-	. . . S ZZ=$$ZVALUE("VUID TEXT")_"^"_$$ZVALUE("STR","C0CB")
-	. . . D PUSH^GPLXPATH("NOMATCH",ZZ)
-	. . . D SETFDA("RXNORM TEXT",$$ZVALUE("STR","C0CB")) ;
-	. . . D SETFDA("DIFFERENT TEXT","Y") ;FLAG RECORD FOR DIFFERENT TEXT
-	. I $$ZVALUE("MEDIATION CODE")=$$ZVALUE("RXCUI","C0CB") D  ;
-	. . S RXMATCH=RXMATCH+1
-	. . W "VUID=",$$ZVALUE("VUID")," MATCH RXNORM=",$$ZVALUE("MEDIATION CODE"),!
-	. D CLEAN^DILF ; MAKE SURE WE ARE CLEANED UP
-	. S C0CFDA(176.112,"+"_C0CZX_",",.01)=$$ZVALUE("VUID") ; NEW VUID RECORD
-	. D UPDATE^DIE("","C0CFDA")
-	. I $D(^TMP("DIERR",$J)) U $P BREAK
-	W "HAS RXN=",HASRXN,!
-	W "NO RXN=",NORXN,!
-	W "NO VUID=",NOVUID,!
-	W "RXNORM FOUND=",RXFOUND,!
-	W "RXNORM MATCHES:",RXMATCH,!
-	W "TEXT MATCHES:",TXTMATCH,!
-	Q
-	;
-EXP2	; ROUTINE TO CREATE 176.113 C0C RXNORM VUID MAPPING DISCREPANCIES FILE
-	; CROSS CHECKS THE NATIONAL DRUG FILE AND THE VA MAPPING FILE AGAINST
-	; THE UMLS RXNORM DATABASE
-	; THIS ROUTINE HAS BEEN ENHANCED TO ALSO CHECK THE 50.416 DRUG INGREDIENT
-	; FILE AND TREAT VUIDS FOUND THERE LIKE THE ONES BEING FOUND IN THE NDF
-	; IF THE VUID EXISISTS IN ALL THREE FILES, THE RXNORM CODE MATCHES IN
-	; THE VA MAPPING FILE AND THE TEXT STRINGS ARE THE SAME, THE VUID IS INCLUDED
-	; IN THE FILE BUT NO FLAGS ARE SET
-	; IF THE VUID IS MISSING FROM THE NATIONAL DRUG FILE NDF=N
-	; (IF THE VUID IS MISSING FROM THE NDF, IT IS CHECKED IN THE DRUG INGREDIENT
-	; FILE, AND IF FOUND, THE FLAG IS NOT SET. IN THIS CASE THE TEXT FROM THE
-	; DRUG INGREDIENT FILE IS USED FOR COMPARISONS)
-	; IF THE VUID IS MISSING FROM THE VA MAPPING FILE VAMAP=N
-	; IF THE VUID IS PRESENT IN THE VA MAPPING FILE, BUT THE RXNORM
-	; CODE IS MISSING IN THAT FILE, VARXN=N
-	; IF THE TEXT STRINGS DO NOT MATCH EXACTLY, TXTM=N AND ALL THREE STRINGS
-	; ARE SHOWN; NDF TEXT=NDF TEXT STRING, VA MAP TEXT=VA MAPPING TEXT STRING
-	; RXNORM TEXT=RXNORM TEXT STRING
-	; THE FILE IS KEYED ON VUID AND WOULD USUALLY BE SORTED BY VUID
-	; THE OBJECTIVE IS TO SEE IF NDF (50.68) AND VA MAPPING (176.111) HAVE
-	; ALL THE VUID CODES THAT ARE IN THE UMLS RXNORM DATABASE
-	N C0CFDA,C0CA,C0CB,C0CC,C0CZX ;FDA WORK ARRAY, RNF ARRAYS, AND IEN ITERATOR
-	N C0CFVA,C0CFRXN ; CLOSED ROOTS FOR SOURCE FILES
-	N C0CF ; CLOSED ROOT FOR DESTINATION FILE
-	S C0CVA=$$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(176.113) ; C0C RXNORM VUID MAPPING ADDITIONAL FILE
-	W C0CVA,C0CFRXN,! ;C0CF,!
-	S C0CZX=0
-	S (NDFVCNT,NDFTCNT,NDFNO)=0 ; COUNTERS FOR NDF TESTS
-	S (VAVCNT,VATCNT,VARCNT,VANO)=0 ; COUNTERS FOR VA MAPPING FILE TESTS
-	F  S C0CZX=$O(^C0CRXN(176.001,"VUID",C0CZX)) Q:+C0CZX=0  D  ; FOR EVERY VUID
-	. K C0CA,C0CB,C0CC,C0CD ; CLEAR ARRAYS
-	. D FIELDS^C0CRNF("C0CC",176.113) ;GET FIELD NAMES FOR OUTPUT FILE
-	. D GETN1^C0CRNF("C0CA",176.001,C0CZX,"VUID","ALL") ;GET FROM RXNORM FILE
-	. D GETN1^C0CRNF("C0CB",176.111,C0CZX,"B","ALL") ;GET FROM VA MAPPING FILE
-	. D GETN1^C0CRNF("C0CD",50.68,C0CZX,"AVUID","ALL") ;GET FROM NDF
-	. D GETN1^C0CRNF("C0CE",50.416,C0CZX,"AVUID","ALL") ;GET FROM DRUG INGREDIENTS
-	. ;D SETFDA("VUID",$$ZVALUE("CODE")) ;SET THE VUID CODE
-	. D SETFDA("RXNORM",$$ZVALUE("RXCUI")) ;SET THE RXNORM CODE
-	. D SETFDA("RXNORM TEXT",$$ZVALUE("STR")) ;SET THE RXNORM TEXT
-	. ;VA MAPPING FILE TESTS
-	. I $$ZVALUE("VUID","C0CB")=C0CZX D  ; VUID FOUND
-	. . S VAVCNT=VAVCNT+1 ;INCREMENT COUNT
-	. . I $$ZVALUE("STR")'=$$ZVALUE("VUID TEXT","C0CB") D  ;TEXT MISMATCH
-	. . . S VATCNT=VATCNT+1 ; INCREMENT VA TEXT MISMATCH COUNT
-	. . . D SETFDA("TXTM","N") ;MARK THAT TEXT DOESN'T MATCH
-	. . . D SETFDA("VA MAP TEXT",$$ZVALUE("VUID TEXT","C0CB")) ; SET VA MAP TEXT
-	. E  D  ; VUID NOT FOUND
-	. . S VANO=VANO+1
-	. . D SETFDA("VAMAP","N") ;MARK AS MISSING FROM VA MAPPING FILE
-	. ; NATIONAL DRUG FILE TESTS
-	. I ($$ZVALUE("VUID","C0CD")=C0CZX)!($$ZVALUE("VUID","C0CE")=C0CZX) D  ;
-	. . ;FOUND IN NATIONAL DRUG FILE OR DRUG INGREDIENT FILE
-	. . S NDFVCNT=NDFVCNT+1 ;INCREMENT VUID FOUND COUNT
-	. . I $$ZVALUE("NAME","C0CD")'=$$ZVALUE("STR") D  ;NDF TEXT DOESN'T MATCH
-	. . . I $$ZVALUE("NAME","C0CE")'=$$ZVALUE("STR") D  ;DRUG ING FILE ALSO
-	. . . . S NDFTCNT=NDFTCNT+1 ; INCREMENT MISMATCHED NDF TEXT COUNT
-	. . . . D SETFDA("TXTM","N") ; SET TEXT MATCH FLAG TO N
-	. . . . D SETFDA("NDF TEXT",$$ZVALUE("NAME","C0CD")) ;POST THE TEXT
-	. . . . D SETFDA("NAT DRUG TEXT",$$ZVALUE("NAME","C0CE")) ;POST TEXT
-	. E  D  ;
-	. . D SETFDA("NDF","N") ;MARK AS MISSING
-	. . S NDFNO=NDFNO+1 ;INCREMENT MISSING COUNT
-	. D CLEAN^DILF ; MAKE SURE WE ARE CLEANED UP
-	. S C0CFDA(176.113,"+"_C0CZX_",",.01)=C0CZX ; NEW VUID RECORD
-	. D UPDATE^DIE("","C0CFDA")
-	. I $D(^TMP("DIERR",$J)) U $P BREAK
-	W "VA MAPPING VUID COUNT: ",VAVCNT,!
-	W "VA MAPPING MISSING: ",VANO,!
-	W "VA MAPPING TEXT MISMATCH: ",VATCNT,!
-	W "NDF VUID COUNT: ",NDFVCNT,!
-	W "NDF MISSING: ",NDFNO,!
-	W "NDF TEXT MISMATCH: ",NDFTCNT,!
-	Q
-CHKNDF	; ROUTINE TO CHECK THE NATIONAL DRUG FILE WITH THE UMLS RXNORM DB
-	; USING THE AVUID INDEX, READS ALL VUID CODES IN ^PSNDF(50.68),
-	; CHECKS TO SEE IF THE CODE IS IN 176.001, AND CREATES A RECORD
-	; IN 176.114
-	; THE OBJECTIVE IS TO SEE IF ^PSNDF(50.68) HAS ALL THE VUID CODES IN THE
-	; UMLS RXNORM DATABASE AND IF THE TEXT FIELDS MATCH
-	; ALSO CAPTURES THE RXNORM CODE MAPPING
-	; CHKNDF2 WILL CHECK THE OTHER DIRECTION, STARTING WITH THE 176.001 VUID INDEX
-	; THIS ROUTINE ALSO CHECKS IF THE VUID CODE IS IN 176.111 AND IF NOT
-	; SETS NOTMAPPED=Y
-	N C0CFDA,C0CA,C0CB,C0CC,C0CZX ;FDA WORK ARRAY, RNF ARRAYS, AND IEN ITERATOR
-	N C0CFVA,C0CFRXN,C0CPSNDF ; CLOSED ROOTS FOR SOURCE FILES
-	N C0CF ; CLOSED ROOT FOR DESTINATION FILE
-	S C0CPSNDF=$$FILEREF^C0CRNF(50.68) ; NDF CLOSED ROOT REFERENCE
-	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=$$FILEREF^C0CRNF(176.113) ; C0C RXNORM VUID MAPPING ADDITIONAL FILE
-	W C0CVA,C0CFRXN,! ;C0CF,!
-	S C0CZX=0
-	S (FOUND,MISSING)=0
-	S (NOVUID,VMATCH,NOMATCH,MISSING,FOUND,TXTMATCH,NOTM,NVAM)=0 ; COUNTERS
-	F  S C0CZX=$O(^PSNDF(50.68,"AVUID",C0CZX)) Q:+C0CZX=0  D  ; FOR EVERY VUID
-	. K C0CA,C0CB,C0CC,C0CD ; CLEAR ARRAYS
-	. ;D FIELDS^C0CRNF("C0CC",176.113) ;GET FIELD NAMES FOR OUTPUT FILE
-	. D GETN1^C0CRNF("C0CA",50.68,C0CZX,"AVUID","ALL") ;GET THE FIELDS
-	. I $$ZVALUE("VUID")="" D  ; ERROR, SHOULD NOT HAPPEN
-	. . S NOVUID=NOVUID+1 ; FLAG THE ERROR
-	. . D PUSH^GPLXPATH("NOVUID",C0CZX) ; RECORD THE VUID
-	. D GETN1^C0CRNF("C0CD",176.001,C0CZX,"VUID","ALL") ;TRY RXNORM DB
-	. I $$ZVALUE("CODE","C0CD")=C0CZX D  ; FOUND IN RXNORM
-	. . S VMATCH=VMATCH+1 ; COUNT OF PSNDF VUIDS FOUND IN RXNORM
-	. . I $$ZVALUE("NAME")=$$ZVALUE("STR","C0CD") D  ;TEXT MATCHES
-	. . . S TXTMATCH=TXTMATCH+1 ; COUNT IT
-	. . E  D  ; TEXT DOESN'T MATCH
-	. . . S NOTM=NOTM+1 ;NO TEXT MATCH COUNTER
-	. . . S ZV=$$ZVALUE("NAME")_"^"_$$ZVALUE("STR","C0CD")
-	. . . W ZV,!
-	. . . D PUSH^GPLXPATH("TXTNM",ZV) ; RECORD THE TXT MISMATCH
-	. E  S NOMATCH=NOMATCH+1 ; NOT FOUND IN RXNORM
-	. D GETN1^C0CRNF("C0CB",176.111,C0CZX,"B","ALL") ;TRY TO GET FROM 176.111
-	. I $$ZVALUE("VUID","C0CB")="" D  ; VUID NOT FOUND
-	. . ;W "NOT FOUND: ",C0CZX," ",$$ZVALUE("STR")," ",$$ZVALUE("RXCUI"),!
-	. . S MISSING=MISSING+1
-	. . D PUSH^GPLXPATH("MISSING",C0CZX) ;MISSING FROM MAPPING FILE
-	. E  D  ; FOUND IN VA MAPPING FILE
-	. . S FOUND=FOUND+1
-	. . I $$ZVALUE("VUID TEXT","C0CB")'=$$ZVALUE("NAME") D  ; TEXT DOESN'T MATCH
-	. . . S NVAM=NVAM+1 ; MAPPING FILE TEXT IS DIFFERENT THAN NDF
-	. . . S ZY=$$ZVALUE("VUID TEXT","C0CB")_"^"_$$ZVALUE("NAME") ;BOTH STRINGS
-	. . . W "VA: ",ZY,!
-	. . . D PUSH^GPLXPATH("NVAM",ZY) ;SAVE IT
-	W "MISSING IN MAPPING FILE: ",MISSING,!
-	W "FOUND IN MAPPING FILE: ",FOUND,!
-	W "FOUND IN RXNORM: ",VMATCH,!
-	W "NOT FOUND IN RXNORM: ",NOMATCH,!
-	W "ERRORS: ",NOVUID,!
-	Q
-	;
-	. I $$ZVALUE("MEDIATION CODE")="" D
-	. . S NORXN=NORXN+1 ;
-	. E  D  ; PROCESS MEDIATION CODE
-	. . S HASRXN=HASRXN+1
-	. . D SETFDA("MEDIATION CODE",$$ZVALUE("MEDIATION CODE")) ;
-	. I $$ZVALUE("VUID")="" D  ; BAD RECORD
-	. . S NOVUID=NOVUID+1
-	. . ;D SETFDA("VUID",$$ZVALUE("VUID"))
-	. E  D SETFDA("VUID TEXT",$$ZVALUE("VUID TEXT"))
-	. . ;ZWR C0CA
-	. D GETN1^C0CRNF("C0CB",176.001,$$ZVALUE("VUID"),"VUID","ALL")
-	. I $$ZVALUE("RXCUI","C0CB")'="" D  ; RXNORM FOUND
-	. . S RXFOUND=RXFOUND+1
-	. . I $$ZVALUE("MEDIATION CODE")="" D  ; THIS IS A NEW CODE
-	. . . D SETFDA("MEDIATION CODE",$$ZVALUE("RXCUI","C0CB"))
-	. . . D SETFDA("NEW","Y") ;FLAG RECORD HAS HAVING NEW RXNORM
-	. . W "RXNORM=",$$ZVALUE("RXCUI","C0CB")," ",$$ZVALUE("STR","C0CB"),!
-	. . W "VUID TEXT: ",$$ZVALUE("VUID TEXT"),!
-	. . I $$ZVALUE("VUID TEXT")=$$ZVALUE("STR","C0CB") S TXTMATCH=TXTMATCH+1
-	. . E  D  ;
-	. . . D PUSH^GPLXPATH("NOMATCH",$$ZVALUE("VUID TEXT")_"^"_$$ZVALUE("STR","C0CB"))
-	. . . D SETFDA("RXNORM TEXT",$$ZVALUE("STR","C0CB")) ;
-	. . . D SETFDA("DIFFERENT TEXT","Y") ;FLAG RECORD FOR DIFFERENT TEXT
-	. I $$ZVALUE("MEDIATION CODE")=$$ZVALUE("RXCUI","C0CB") D  ;
-	. . S RXMATCH=RXMATCH+1
-	. . W "VUID=",$$ZVALUE("VUID")," MATCH RXNORM=",$$ZVALUE("MEDIATION CODE"),!
-	. D CLEAN^DILF ; MAKE SURE WE ARE CLEANED UP
-	. S C0CFDA(176.112,"+"_C0CZX_",",.01)=$$ZVALUE("VUID") ; NEW VUID RECORD
-	. D UPDATE^DIE("","C0CFDA")
-	. I $D(^TMP("DIERR",$J)) U $P BREAK
-	W "HAS RXN=",HASRXN,!
-	W "NO RXN=",NORXN,!
-	W "NO VUID=",NOVUID,!
-	W "RXNORM FOUND=",RXFOUND,!
-	W "RXNORM MATCHES:",RXMATCH,!
-	W "TEXT MATCHES:",TXTMATCH,!
-	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=$$ZFILE(C0CSN,"C0CC") ; FILE NUMBER
-	S C0CSJ=$$ZFIELD(C0CSN,"C0CC") ; FIELD NUMBER
-	S C0CFDA(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"
-	N ZR
-	I $D(@ZTAB@(ZFN)) S ZR=$P(@ZTAB@(ZFN),"^",1)
-	E  S ZR=""
-	Q ZR
-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"
-	N ZR
-	I $D(@ZTAB@(ZFN)) S ZR=$P(@ZTAB@(ZFN),"^",2)
-	E  S ZR=""
-	Q ZR
-	;
-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"
-	N ZR
-	I $D(@ZTAB@(ZFN)) S ZR=$P(@ZTAB@(ZFN),"^",3)
-	E  S ZR=""
-	Q ZR
-	;
+C0CRXN   ; CCDCCR/GPL - CCR RXN utilities; 12/6/08
+ ;;1.0;C0C;;May 19, 2009;Build 38
+ ;Copyright 2009 George Lilly.  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,C0CC,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=$$FILEREF^C0CRNF(176.112) ; C0C RXNORM VUID MAPPING EXPANSION FILE
+ W C0CVA,C0CFRXN,C0CF,!
+ S C0CZX=0
+ S (HASRXN,NORXN,NOVUID,RXFOUND,RXMATCH,TXTMATCH)=0 ; INITIALIZE COUNTERS
+ F  S C0CZX=$O(^C0CCODES(176.111,C0CZX)) Q:+C0CZX=0  D  ; FOR EVERY RECORD
+ . K C0CA,C0CB,C0CC ; CLEAR ARRAYS
+ . D FIELDS^C0CRNF("C0CC",176.112) ;GET FIELD NAMES FOR OUTPUT FILE
+ . D GETN1^C0CRNF("C0CA",176.111,C0CZX,"","ALL") ;GET THE FIELDS
+ . I $$ZVALUE("MEDIATION CODE")="" D
+ . . S NORXN=NORXN+1 ;
+ . E  D  ; PROCESS MEDIATION CODE
+ . . S HASRXN=HASRXN+1
+ . . D SETFDA("MEDIATION CODE",$$ZVALUE("MEDIATION CODE")) ;
+ . I $$ZVALUE("VUID")="" D  ; BAD RECORD
+ . . S NOVUID=NOVUID+1
+ . . ;D SETFDA("VUID",$$ZVALUE("VUID"))
+ . E  D SETFDA("VUID TEXT",$$ZVALUE("VUID TEXT"))
+ . . ;ZWR C0CA
+ . D GETN1^C0CRNF("C0CB",176.001,$$ZVALUE("VUID"),"VUID","ALL")
+ . I $$ZVALUE("RXCUI","C0CB")'="" D  ; RXNORM FOUND
+ . . S RXFOUND=RXFOUND+1
+ . . I $$ZVALUE("MEDIATION CODE")="" D  ; THIS IS A NEW CODE
+ . . . D SETFDA("MEDIATION CODE",$$ZVALUE("RXCUI","C0CB"))
+ . . . D SETFDA("NEW","Y") ;FLAG RECORD HAS HAVING NEW RXNORM
+ . . W "RXNORM=",$$ZVALUE("RXCUI","C0CB")," ",$$ZVALUE("STR","C0CB"),!
+ . . W "VUID TEXT: ",$$ZVALUE("VUID TEXT"),!
+ . . I $$ZVALUE("VUID TEXT")=$$ZVALUE("STR","C0CB") S TXTMATCH=TXTMATCH+1
+ . . E  D  ;
+ . . . S ZZ=$$ZVALUE("VUID TEXT")_"^"_$$ZVALUE("STR","C0CB")
+ . . . D PUSH^GPLXPATH("NOMATCH",ZZ)
+ . . . D SETFDA("RXNORM TEXT",$$ZVALUE("STR","C0CB")) ;
+ . . . D SETFDA("DIFFERENT TEXT","Y") ;FLAG RECORD FOR DIFFERENT TEXT
+ . I $$ZVALUE("MEDIATION CODE")=$$ZVALUE("RXCUI","C0CB") D  ;
+ . . S RXMATCH=RXMATCH+1
+ . . W "VUID=",$$ZVALUE("VUID")," MATCH RXNORM=",$$ZVALUE("MEDIATION CODE"),!
+ . D CLEAN^DILF ; MAKE SURE WE ARE CLEANED UP
+ . S C0CFDA(176.112,"+"_C0CZX_",",.01)=$$ZVALUE("VUID") ; NEW VUID RECORD
+ . D UPDATE^DIE("","C0CFDA")
+ . I $D(^TMP("DIERR",$J)) U $P BREAK
+ W "HAS RXN=",HASRXN,!
+ W "NO RXN=",NORXN,!
+ W "NO VUID=",NOVUID,!
+ W "RXNORM FOUND=",RXFOUND,!
+ W "RXNORM MATCHES:",RXMATCH,!
+ W "TEXT MATCHES:",TXTMATCH,!
+ Q
+ ;
+EXP2 ; ROUTINE TO CREATE 176.113 C0C RXNORM VUID MAPPING DISCREPANCIES FILE
+ ; CROSS CHECKS THE NATIONAL DRUG FILE AND THE VA MAPPING FILE AGAINST
+ ; THE UMLS RXNORM DATABASE
+ ; THIS ROUTINE HAS BEEN ENHANCED TO ALSO CHECK THE 50.416 DRUG INGREDIENT
+ ; FILE AND TREAT VUIDS FOUND THERE LIKE THE ONES BEING FOUND IN THE NDF
+ ; IF THE VUID EXISISTS IN ALL THREE FILES, THE RXNORM CODE MATCHES IN
+ ; THE VA MAPPING FILE AND THE TEXT STRINGS ARE THE SAME, THE VUID IS INCLUDED
+ ; IN THE FILE BUT NO FLAGS ARE SET
+ ; IF THE VUID IS MISSING FROM THE NATIONAL DRUG FILE NDF=N
+ ; (IF THE VUID IS MISSING FROM THE NDF, IT IS CHECKED IN THE DRUG INGREDIENT
+ ; FILE, AND IF FOUND, THE FLAG IS NOT SET. IN THIS CASE THE TEXT FROM THE
+ ; DRUG INGREDIENT FILE IS USED FOR COMPARISONS)
+ ; IF THE VUID IS MISSING FROM THE VA MAPPING FILE VAMAP=N
+ ; IF THE VUID IS PRESENT IN THE VA MAPPING FILE, BUT THE RXNORM
+ ; CODE IS MISSING IN THAT FILE, VARXN=N
+ ; IF THE TEXT STRINGS DO NOT MATCH EXACTLY, TXTM=N AND ALL THREE STRINGS
+ ; ARE SHOWN; NDF TEXT=NDF TEXT STRING, VA MAP TEXT=VA MAPPING TEXT STRING
+ ; RXNORM TEXT=RXNORM TEXT STRING
+ ; THE FILE IS KEYED ON VUID AND WOULD USUALLY BE SORTED BY VUID
+ ; THE OBJECTIVE IS TO SEE IF NDF (50.68) AND VA MAPPING (176.111) HAVE
+ ; ALL THE VUID CODES THAT ARE IN THE UMLS RXNORM DATABASE
+ N C0CFDA,C0CA,C0CB,C0CC,C0CZX ;FDA WORK ARRAY, RNF ARRAYS, AND IEN ITERATOR
+ N C0CFVA,C0CFRXN ; CLOSED ROOTS FOR SOURCE FILES
+ N C0CF ; CLOSED ROOT FOR DESTINATION FILE
+ S C0CVA=$$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(176.113) ; C0C RXNORM VUID MAPPING ADDITIONAL FILE
+ W C0CVA,C0CFRXN,! ;C0CF,!
+ S C0CZX=0
+ S (NDFVCNT,NDFTCNT,NDFNO)=0 ; COUNTERS FOR NDF TESTS
+ S (VAVCNT,VATCNT,VARCNT,VANO)=0 ; COUNTERS FOR VA MAPPING FILE TESTS
+ F  S C0CZX=$O(^C0CRXN(176.001,"VUID",C0CZX)) Q:+C0CZX=0  D  ; FOR EVERY VUID
+ . K C0CA,C0CB,C0CC,C0CD ; CLEAR ARRAYS
+ . D FIELDS^C0CRNF("C0CC",176.113) ;GET FIELD NAMES FOR OUTPUT FILE
+ . D GETN1^C0CRNF("C0CA",176.001,C0CZX,"VUID","ALL") ;GET FROM RXNORM FILE
+ . D GETN1^C0CRNF("C0CB",176.111,C0CZX,"B","ALL") ;GET FROM VA MAPPING FILE
+ . D GETN1^C0CRNF("C0CD",50.68,C0CZX,"AVUID","ALL") ;GET FROM NDF
+ . D GETN1^C0CRNF("C0CE",50.416,C0CZX,"AVUID","ALL") ;GET FROM DRUG INGREDIENTS
+ . ;D SETFDA("VUID",$$ZVALUE("CODE")) ;SET THE VUID CODE
+ . D SETFDA("RXNORM",$$ZVALUE("RXCUI")) ;SET THE RXNORM CODE
+ . D SETFDA("RXNORM TEXT",$$ZVALUE("STR")) ;SET THE RXNORM TEXT
+ . ;VA MAPPING FILE TESTS
+ . I $$ZVALUE("VUID","C0CB")=C0CZX D  ; VUID FOUND
+ . . S VAVCNT=VAVCNT+1 ;INCREMENT COUNT
+ . . I $$ZVALUE("STR")'=$$ZVALUE("VUID TEXT","C0CB") D  ;TEXT MISMATCH
+ . . . S VATCNT=VATCNT+1 ; INCREMENT VA TEXT MISMATCH COUNT
+ . . . D SETFDA("TXTM","N") ;MARK THAT TEXT DOESN'T MATCH
+ . . . D SETFDA("VA MAP TEXT",$$ZVALUE("VUID TEXT","C0CB")) ; SET VA MAP TEXT
+ . E  D  ; VUID NOT FOUND
+ . . S VANO=VANO+1
+ . . D SETFDA("VAMAP","N") ;MARK AS MISSING FROM VA MAPPING FILE
+ . ; NATIONAL DRUG FILE TESTS
+ . I ($$ZVALUE("VUID","C0CD")=C0CZX)!($$ZVALUE("VUID","C0CE")=C0CZX) D  ;
+ . . ;FOUND IN NATIONAL DRUG FILE OR DRUG INGREDIENT FILE
+ . . S NDFVCNT=NDFVCNT+1 ;INCREMENT VUID FOUND COUNT
+ . . I $$ZVALUE("NAME","C0CD")'=$$ZVALUE("STR") D  ;NDF TEXT DOESN'T MATCH
+ . . . I $$ZVALUE("NAME","C0CE")'=$$ZVALUE("STR") D  ;DRUG ING FILE ALSO
+ . . . . S NDFTCNT=NDFTCNT+1 ; INCREMENT MISMATCHED NDF TEXT COUNT
+ . . . . D SETFDA("TXTM","N") ; SET TEXT MATCH FLAG TO N
+ . . . . D SETFDA("NDF TEXT",$$ZVALUE("NAME","C0CD")) ;POST THE TEXT
+ . . . . D SETFDA("NAT DRUG TEXT",$$ZVALUE("NAME","C0CE")) ;POST TEXT
+ . E  D  ;
+ . . D SETFDA("NDF","N") ;MARK AS MISSING
+ . . S NDFNO=NDFNO+1 ;INCREMENT MISSING COUNT
+ . D CLEAN^DILF ; MAKE SURE WE ARE CLEANED UP
+ . S C0CFDA(176.113,"+"_C0CZX_",",.01)=C0CZX ; NEW VUID RECORD
+ . D UPDATE^DIE("","C0CFDA")
+ . I $D(^TMP("DIERR",$J)) U $P BREAK
+ W "VA MAPPING VUID COUNT: ",VAVCNT,!
+ W "VA MAPPING MISSING: ",VANO,!
+ W "VA MAPPING TEXT MISMATCH: ",VATCNT,!
+ W "NDF VUID COUNT: ",NDFVCNT,!
+ W "NDF MISSING: ",NDFNO,!
+ W "NDF TEXT MISMATCH: ",NDFTCNT,!
+ Q
+CHKNDF ; ROUTINE TO CHECK THE NATIONAL DRUG FILE WITH THE UMLS RXNORM DB
+ ; USING THE AVUID INDEX, READS ALL VUID CODES IN ^PSNDF(50.68),
+ ; CHECKS TO SEE IF THE CODE IS IN 176.001, AND CREATES A RECORD
+ ; IN 176.114
+ ; THE OBJECTIVE IS TO SEE IF ^PSNDF(50.68) HAS ALL THE VUID CODES IN THE
+ ; UMLS RXNORM DATABASE AND IF THE TEXT FIELDS MATCH
+ ; ALSO CAPTURES THE RXNORM CODE MAPPING
+ ; CHKNDF2 WILL CHECK THE OTHER DIRECTION, STARTING WITH THE 176.001 VUID INDEX
+ ; THIS ROUTINE ALSO CHECKS IF THE VUID CODE IS IN 176.111 AND IF NOT
+ ; SETS NOTMAPPED=Y
+ N C0CFDA,C0CA,C0CB,C0CC,C0CZX ;FDA WORK ARRAY, RNF ARRAYS, AND IEN ITERATOR
+ N C0CFVA,C0CFRXN,C0CPSNDF ; CLOSED ROOTS FOR SOURCE FILES
+ N C0CF ; CLOSED ROOT FOR DESTINATION FILE
+ S C0CPSNDF=$$FILEREF^C0CRNF(50.68) ; NDF CLOSED ROOT REFERENCE
+ 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=$$FILEREF^C0CRNF(176.113) ; C0C RXNORM VUID MAPPING ADDITIONAL FILE
+ W C0CVA,C0CFRXN,! ;C0CF,!
+ S C0CZX=0
+ S (FOUND,MISSING)=0
+ S (NOVUID,VMATCH,NOMATCH,MISSING,FOUND,TXTMATCH,NOTM,NVAM)=0 ; COUNTERS
+ F  S C0CZX=$O(^PSNDF(50.68,"AVUID",C0CZX)) Q:+C0CZX=0  D  ; FOR EVERY VUID
+ . K C0CA,C0CB,C0CC,C0CD ; CLEAR ARRAYS
+ . ;D FIELDS^C0CRNF("C0CC",176.113) ;GET FIELD NAMES FOR OUTPUT FILE
+ . D GETN1^C0CRNF("C0CA",50.68,C0CZX,"AVUID","ALL") ;GET THE FIELDS
+ . I $$ZVALUE("VUID")="" D  ; ERROR, SHOULD NOT HAPPEN
+ . . S NOVUID=NOVUID+1 ; FLAG THE ERROR
+ . . D PUSH^GPLXPATH("NOVUID",C0CZX) ; RECORD THE VUID
+ . D GETN1^C0CRNF("C0CD",176.001,C0CZX,"VUID","ALL") ;TRY RXNORM DB
+ . I $$ZVALUE("CODE","C0CD")=C0CZX D  ; FOUND IN RXNORM
+ . . S VMATCH=VMATCH+1 ; COUNT OF PSNDF VUIDS FOUND IN RXNORM
+ . . I $$ZVALUE("NAME")=$$ZVALUE("STR","C0CD") D  ;TEXT MATCHES
+ . . . S TXTMATCH=TXTMATCH+1 ; COUNT IT
+ . . E  D  ; TEXT DOESN'T MATCH
+ . . . S NOTM=NOTM+1 ;NO TEXT MATCH COUNTER
+ . . . S ZV=$$ZVALUE("NAME")_"^"_$$ZVALUE("STR","C0CD")
+ . . . W ZV,!
+ . . . D PUSH^GPLXPATH("TXTNM",ZV) ; RECORD THE TXT MISMATCH
+ . E  S NOMATCH=NOMATCH+1 ; NOT FOUND IN RXNORM
+ . D GETN1^C0CRNF("C0CB",176.111,C0CZX,"B","ALL") ;TRY TO GET FROM 176.111
+ . I $$ZVALUE("VUID","C0CB")="" D  ; VUID NOT FOUND
+ . . ;W "NOT FOUND: ",C0CZX," ",$$ZVALUE("STR")," ",$$ZVALUE("RXCUI"),!
+ . . S MISSING=MISSING+1
+ . . D PUSH^GPLXPATH("MISSING",C0CZX) ;MISSING FROM MAPPING FILE
+ . E  D  ; FOUND IN VA MAPPING FILE
+ . . S FOUND=FOUND+1
+ . . I $$ZVALUE("VUID TEXT","C0CB")'=$$ZVALUE("NAME") D  ; TEXT DOESN'T MATCH
+ . . . S NVAM=NVAM+1 ; MAPPING FILE TEXT IS DIFFERENT THAN NDF
+ . . . S ZY=$$ZVALUE("VUID TEXT","C0CB")_"^"_$$ZVALUE("NAME") ;BOTH STRINGS
+ . . . W "VA: ",ZY,!
+ . . . D PUSH^GPLXPATH("NVAM",ZY) ;SAVE IT
+ W "MISSING IN MAPPING FILE: ",MISSING,!
+ W "FOUND IN MAPPING FILE: ",FOUND,!
+ W "FOUND IN RXNORM: ",VMATCH,!
+ W "NOT FOUND IN RXNORM: ",NOMATCH,!
+ W "ERRORS: ",NOVUID,!
+ Q
+ ;
+ . I $$ZVALUE("MEDIATION CODE")="" D
+ . . S NORXN=NORXN+1 ;
+ . E  D  ; PROCESS MEDIATION CODE
+ . . S HASRXN=HASRXN+1
+ . . D SETFDA("MEDIATION CODE",$$ZVALUE("MEDIATION CODE")) ;
+ . I $$ZVALUE("VUID")="" D  ; BAD RECORD
+ . . S NOVUID=NOVUID+1
+ . . ;D SETFDA("VUID",$$ZVALUE("VUID"))
+ . E  D SETFDA("VUID TEXT",$$ZVALUE("VUID TEXT"))
+ . . ;ZWR C0CA
+ . D GETN1^C0CRNF("C0CB",176.001,$$ZVALUE("VUID"),"VUID","ALL")
+ . I $$ZVALUE("RXCUI","C0CB")'="" D  ; RXNORM FOUND
+ . . S RXFOUND=RXFOUND+1
+ . . I $$ZVALUE("MEDIATION CODE")="" D  ; THIS IS A NEW CODE
+ . . . D SETFDA("MEDIATION CODE",$$ZVALUE("RXCUI","C0CB"))
+ . . . D SETFDA("NEW","Y") ;FLAG RECORD HAS HAVING NEW RXNORM
+ . . W "RXNORM=",$$ZVALUE("RXCUI","C0CB")," ",$$ZVALUE("STR","C0CB"),!
+ . . W "VUID TEXT: ",$$ZVALUE("VUID TEXT"),!
+ . . I $$ZVALUE("VUID TEXT")=$$ZVALUE("STR","C0CB") S TXTMATCH=TXTMATCH+1
+ . . E  D  ;
+ . . . D PUSH^GPLXPATH("NOMATCH",$$ZVALUE("VUID TEXT")_"^"_$$ZVALUE("STR","C0CB"))
+ . . . D SETFDA("RXNORM TEXT",$$ZVALUE("STR","C0CB")) ;
+ . . . D SETFDA("DIFFERENT TEXT","Y") ;FLAG RECORD FOR DIFFERENT TEXT
+ . I $$ZVALUE("MEDIATION CODE")=$$ZVALUE("RXCUI","C0CB") D  ;
+ . . S RXMATCH=RXMATCH+1
+ . . W "VUID=",$$ZVALUE("VUID")," MATCH RXNORM=",$$ZVALUE("MEDIATION CODE"),!
+ . D CLEAN^DILF ; MAKE SURE WE ARE CLEANED UP
+ . S C0CFDA(176.112,"+"_C0CZX_",",.01)=$$ZVALUE("VUID") ; NEW VUID RECORD
+ . D UPDATE^DIE("","C0CFDA")
+ . I $D(^TMP("DIERR",$J)) U $P BREAK
+ W "HAS RXN=",HASRXN,!
+ W "NO RXN=",NORXN,!
+ W "NO VUID=",NOVUID,!
+ W "RXNORM FOUND=",RXFOUND,!
+ W "RXNORM MATCHES:",RXMATCH,!
+ W "TEXT MATCHES:",TXTMATCH,!
+ 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=$$ZFILE(C0CSN,"C0CC") ; FILE NUMBER
+ S C0CSJ=$$ZFIELD(C0CSN,"C0CC") ; FIELD NUMBER
+ S C0CFDA(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"
+ N ZR
+ I $D(@ZTAB@(ZFN)) S ZR=$P(@ZTAB@(ZFN),"^",1)
+ E  S ZR=""
+ Q ZR
+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"
+ N ZR
+ I $D(@ZTAB@(ZFN)) S ZR=$P(@ZTAB@(ZFN),"^",2)
+ E  S ZR=""
+ Q ZR
+ ;
+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"
+ N ZR
+ I $D(@ZTAB@(ZFN)) S ZR=$P(@ZTAB@(ZFN),"^",3)
+ E  S ZR=""
+ Q ZR
+ ;
