| 1 | MPIFSPC ;SLC/ARS-MASTER PATIENT INDEX SYSTEM CHECK SUM RTN ;SEP 4, 1996 | 
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| 2 | ;;1.0; MASTER PATIENT INDEX VISTA ;**48**;30 Apr 99;Build 6 | 
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| 3 | ;MPICHECK | 
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| 4 | CHECKDG(NUM) ;Check Digit Calculation | 
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| 5 | ;change to local array of MPI global. | 
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| 6 | ;D EXIN **48 CHANGE TO FUNCTION CALL | 
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| 7 | ;K I,J,LTH,MPID,MPIMAP,MPIT,TAB,VAL | 
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| 8 | N TMP | 
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| 9 | S TMP=$$EXIN(NUM) | 
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| 10 | Q TMP | 
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| 11 | READ ; | 
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| 12 | ; | 
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| 13 | EXIN(NUM) ;**48 MADE THIS A FUNCTION CALL | 
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| 14 | N SUM,I,J,LTH,MPID,MPIMAP,MPIT,TAB,VAL | 
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| 15 | I $L(NUM)'=16 D | 
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| 16 | .; W !,"I WILL PAD TO 16!" | 
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| 17 | .S LTH=($L(NUM)+1) F I=LTH:1:16 S NUM="0"_NUM | 
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| 18 | F MPIT=1:1:6  D | 
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| 19 | .; For each check digit, compute a value | 
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| 20 | .F MPID=1:1:16  D | 
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| 21 | ..S MPIMAP(MPIT,0,"MAP")=0 | 
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| 22 | ..S MPIMAP(MPIT,MPID)=$E(NUM,MPID),VAL=MPIMAP(MPIT,MPID) | 
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| 23 | ..S SUM=(MPIMAP(MPIT,MPID)+(MPIMAP(MPIT,MPID-1,"MAP")))#10 | 
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| 24 | ..S MPIMAP(MPIT,MPID,"MAP")=$P($P(^MPIF(984.5,MPIT,SUM),"^",2),";",MPID) | 
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| 25 | .S TAB(MPIT)=MPIMAP(MPIT,16,"MAP") | 
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| 26 | .;Q | 
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| 27 | S SUM="" | 
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| 28 | F J=1:1:6  D | 
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| 29 | .S SUM=SUM_TAB(J) | 
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| 30 | Q SUM | 
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| 31 | ; | 
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| 32 | ;Before calculation of check digits the number must be | 
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| 33 | ;expanded to sixteen digits by padding zeros to the | 
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| 34 | ;left of the number. | 
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