VistA-FOIAVistA/r/FEE_BASIS-FB/FBAAFSR.m

230 lines
7.8 KiB
Mathematica

FBAAFSR ;WCIOFO/TCK,SS,DMK,SAB-RBRVS FEE SCHEDULE ; 8/26/1999
;;3.5;FEE BASIS;**4,53,71,84,92,93,99,102,105**;JAN 30, 1995;Build 1
;
Q
;
RBRVS(CPT,MODL,DOS,ZIP,FAC,TIME) ; calculate RBRVS Fee Schedule amount
; Input
; CPT = CPT/HCPCS code (external value)
; MODL = list of CPT/HCPCS modifiers (external values)
; delimited by commas (e.g. "26,51")
; DOS = date of service (fileman format e.g. 2980101)
; ZIP = ZIP code of service (external 5 digit value)
; FAC = facility flag =1 if site of service is facility setting
; TIME = time in minutes, only passed on anesthesia CPT codes
; Returns string
; dollar amount^sched year OR null value if not on RBRVS schedule
; Output
; FBERR( array of error messages OR undefined if none
;
N FBAMT,FBCF,FBCPT0,FBCPTY0,FBCY,FBERR,FBGPCIY0
;
; initialization
S FBAMT=""
K FBERR
;
; check for required input parameters
I $G(CPT)="" D ERR^FBAAFS("CPT missing")
I $G(DOS)'?7N D ERR^FBAAFS("Date of Service missing")
I $D(FBERR) Q FBAMT
;
;if date of service prior to VA implementation, don't use RBRVS
I DOS<2990901 Q FBAMT
;
;if modifier SG present, don't use RBRVS, patch FB*3.5*84
I MODL["SG" Q FBAMT
;
; determine schedule calendar year based on date of service
S FBCY=$E(DOS,1,3)+1700
;
;If date of service in 2003 but prior to Mar 1, 2003 treat as 2002
I $E(DOS,1,3)=303,DOS<3030301 S FBCY=FBCY-1
;
; if year after most recent RBRVS schedule then use prior year schedule
I FBCY>$$LASTCY() S FBCY=FBCY-1
;
; get procedure data from schedule for year
D PROC(CPT,MODL,FBCY)
;
; if procedure:
; - covered
; - payable
; - not for anesthesia
; then calculate amount
I FBCPTY0]"",'$$ANES^FBAAFS(CPT) D
. ;
. ;validate parameters
. I $G(ZIP)="" D ERR^FBAAFS("Missing ZIP Code")
. I $G(FAC)="" D ERR^FBAAFS("Missing Facility Flag")
. I $D(FBERR) Q
. ;
. ; get GPCIs for calendar year
. D ZIP(FBCY,ZIP)
. I FBGPCIY0="" D ERR^FBAAFS("Could not determine GPCIs") Q
. ;
. ; get conversion factor
. S FBCF=$$CF(FBCY,$P(FBCPT0,U,2))
. I FBCF="" D ERR^FBAAFS("Could not determine the conversion factor") Q
. ;
. ; calculate full schedule amount
. D CALC(FBCY,FAC,FBCPTY0,FBGPCIY0,FBCF)
. ;
. ; apply multiplier based on modifier
. I MODL]"" S FBAMT=FBAMT*$$MULT(FBCY,MODL,FBCPT0,FBCPTY0)
;
; return result
Q $S(FBAMT>0:$J(FBAMT,0,2)_U_FBCY,1:"")
;
PROC(CPT,MODL,FBCY,FBNONPBL) ; get procedure data for RBRVS schedule
; Input
; CPT = CPT/HCPCS code (external value)
; MODL = list of CPT/HCPCS modifiers (external value)
; delimited by commas
; FBCY = calendar year (4 digit)
; FBNONPBL ( optional):
; if $G(FBNONPBL)=0 then will make search among payable records only in #162.97
; ignoring those non-payable ones with field #.08 NONPAYABLE = 1
; if $G(FBNONPBL)=1 then will make search among all items in #162.97
;
; Output
; FBCPT0 = zero node from file 162.97 OR "" if not covered
; FBCPTY0 = zero node from subfile 162.971 or "" if not covered
N CPTM,MOD,FBI
S (FBCPT0,FBCPTY0)=""
Q:$G(FBCY)']""!($G(CPT)']"")
;
; if modifier exists try to find entry with modifier
I MODL]"" D
. F FBI=1:1 S MOD=$P(MODL,",",FBI) Q:MOD="" D Q:FBCPTY0]""
. . S CPTM=CPT_"-"_MOD
. . D PROC1(CPTM,FBCY,$G(FBNONPBL))
;
; if not found with modifier, try just CPT code
I FBCPTY0="" D PROC1(CPT,FBCY,$G(FBNONPBL))
;
Q
;
PROC1(CPTM,FBCY,FBNONPBL) ; get procedure data for CPT-Modifier
; input
; CPTM - CPT Code - Modifier (e.g. 57335-TC or 57335)
; FBCY - 4 digit calendar year
; FBNONPBL ( optional):
; if $G(FBNONPBL)=0 then will make search among payable records only in #162.97
; ignoring those non-payable ones with field #.08 NONPAYABLE = 1
; if $G(FBNONPBL)=1 then will make search among all items in #162.97
; output
; FBCPT0 = zero node from file 162.97 OR "" if not covered
; FBCPTY0 = zero node from subfile 162.971 or "" if not covered
N FBDA,FBDA1
S (FBCPT0,FBCPTY0)=""
S FBDA=$O(^FB(162.97,"B",CPTM,0))
S FBDA1=$S(FBDA:$O(^FB(162.97,FBDA,"CY","B",FBCY,0)),1:"")
I $G(FBDA),$G(FBDA1) D
. N FBI,FBSUM,FBY
. S FBY=$G(^FB(162.97,FBDA,"CY",FBDA1,0))
. ;if non-payable records should not be considered
. ;then quit if this is NONPAYBLE
. I +$G(FBNONPBL)=0 Q:$P(FBY,U,8)=1
. ; check if procedure covered by schedule
. I +$G(FBNONPBL)=0,$$ANES^FBAAFS($P(CPTM,"-")),$P(FBY,U,6)']"" Q ; missing anes base
. I +$G(FBNONPBL)=0,'$$ANES^FBAAFS($P(CPTM,"-")) D I FBSUM'>0 Q ; sum of RVUs = 0
. . S FBSUM=0 F FBI=3,4,5,6 S FBSUM=FBSUM+$P(FBY,U,FBI)
. ; passed checks
. S FBCPTY0=FBY
. S FBCPT0=$G(^FB(162.97,FBDA,0))
Q
;
ZIP(FBCY,ZIP) ; get GPCIs
; Input
; FBCY = calendar year (4 digit)
; ZIP = zip code (5 digit external value)
; Output
; FBGPCIY0 = zero node from file 162.96 or "" if not found
S FBGPCIY0=""
Q:$G(FBCY)']""!($G(ZIP)']"")
N FBDA,FBDA1
S FBDA=$O(^FB(162.96,"B",ZIP,0))
S FBDA1=$S(FBDA:$O(^FB(162.96,FBDA,"CY","B",FBCY,0)),1:"")
I FBDA,FBDA1 S FBGPCIY0=$G(^FB(162.96,FBDA,"CY",FBDA1,0))
Q
;
CF(FBCY,FBDA) ; get conversion factor
; Input
; FBCY = calendar year
; FBDA = optional conversion category (internal)
; Returns
; conversion factor from file 162.99
N FBCF,FBDA1
I '$G(FBDA) S FBDA=4 ; use Medicine category if not specified
S FBDA1=$O(^FB(162.99,FBDA,"CY","B",FBCY,0))
S FBCF=$S(FBDA1:$P($G(^FB(162.99,FBDA,"CY",FBDA1,0)),U,2),1:"")
Q +FBCF
;
CALC(FBCY,FAC,FBCPTY0,FBGPCIY0,FBCF) ;
; Input
; FBCY = calendar year (4 digit)
; FAC = facility flag (0 or 1)
; FBCPTY0 = zero node from file 162.71
; FBGPCI0 = zero node from file 162.61
; FBCF = conversion factor (number)
; Returns $ amount
;
N GPCI,RVU,FBI,TMP,TMPRVU
S FBAMT=0
;Old formula for RBRVS pre-2007 payment amounts
I DOS<3070101 D
.S RVU(1)=$P(FBCPTY0,U,3)
I (DOS=3070101!(DOS>3070101)&(DOS<3080101)) D
.;New formula for RBRVS 2007 payment amounts
.;Multiply Work RVU by the Budget Neutrality Adjustor (0.8994)
.S TMP=$P(FBCPTY0,U,3),TMPRVU=$J((TMP*(.8994)),".",2)
.S RVU(1)=TMPRVU
I DOS=3080101!(DOS>3080101) D
.;New formula for the RBRVS 2008 payment amounts
.;Multiply Work RVU by the Budget Neutrality Adjustor (0.8994)
.S TMP=$P(FBCPTY0,U,3),TMPRVU=$J((TMP*(.8806)),".",2)
.S RVU(1)=TMPRVU
S RVU(2)=$P(FBCPTY0,U,4+FAC)
S RVU(3)=$P(FBCPTY0,U,6)
F FBI=2,3,4 S GPCI(FBI-1)=$P(FBGPCIY0,U,FBI)
S FBAMT=((RVU(1)*GPCI(1))+(RVU(2)*GPCI(2))+(RVU(3)*GPCI(3)))*FBCF
; some procedures can't be performed in a facility setting by
; definition. the facility PE RVU for such a procedure is a null
; value.
; when facility setting - check for a null PE value and don't return amt
I RVU(2)="",FAC S FBAMT=0 Q
Q
;
MULT(FBCY,MODL,FBCPT0,FBCPTY0) ;returns multiplier based on table type
; Input
; FBCY = calendar year (4 digit)
; MODL = list of CPT/HCPCS modifiers (external values)
; delimited by commas
; FBCPT0 = zero node of file 162.7 for procedure
; FBCPTY0 = zero node of subfile 162.71 for year
; Returns
; multiplier value OR 1 if none
N FBDA,FBDA1,FBI,FBML,FBPD,FBRET,FBTBL,MOD
S FBRET=1
S FBML=$P(FBCPTY0,U,2) ; mod level table for procedure
I MODL]"",FBML]"",FBCY]"" D
. S FBTBL=FBCY_"-"_FBML ; mod level table for year
. S FBDA=$O(^FB(162.98,"B",FBTBL,0))
. Q:'FBDA ; table not found
. ; loop thru the modifiers
. F FBI=1:1 S MOD=$P(MODL,",",FBI) Q:MOD="" D
. . I $P($P(FBCPT0,U),"-",2)=MOD Q ; modifier already built in schedule
. . ; look up modifier in mod level table
. . S FBDA1=$O(^FB(162.98,FBDA,"M","B",MOD,0))
. . Q:'FBDA1 ; modifier not found in table
. . S FBPD=$P($G(^FB(162.98,FBDA,"M",FBDA1,0)),U,2) ; percentage
. . I FBPD>0 S FBRET=FBRET*(FBPD/100) ; multiplier
Q FBRET
;
LASTCY() ; Determine last calendar year of RBRVS FEE schedule data
; based on last year for Medicine conversion factor
N YEAR
S YEAR=$O(^FB(162.99,4,"CY","B"," "),-1)
Q YEAR
;FBAAFSR