he? HEALTHECONOMICSRESEARCH,INC. 300FifthAvenue,6thFloor Waltham,MA02154 (617)487-0200 (017)487-0202-FAX DIAGNOSTICCOSTGROUP(DCG)AND HIERARCHICALCOEXISTINGCONDITIONS (HCC) MODELS FORMEDICARERISKADJUSTMENT Volume II AppendicestoFinalReport Submittedby; RandaUP.EUis,Ph.D.^ GregoryC.Pope,M.S.2 LisaI.lezzoni,M.D.,M.Sc.^ JohnZ.Ayanian,M.D.,M.P.P.^ DavidW.Bates,M.D.,M.Sc.5 HelenBurstin,M.D.,M.P.H.^ DebraA.Dayhoff,Ph.D7 AmyRensko,B.A.^ TimDawes,B.A.^ ArleneS.Ash,Ph.D.9 AffiliaHons: ^SBeonsitoornEUcnoinvoemrissitty,,HBeoaslttohn,EcMoAnomicsResearch,Inc.,Waltham,MAandProfessorofEconomics, ^VicePresident,HealthEconomicsResearch,Inc.,Waltham,MA ^AssociateProfessorofMedicine,HarvardMedicalSchool,DivisionofGeneralMedicineandPrimaryCare, TDhepoamrdtimkeentLaobforMaetdoircyi,neB,osBteotnh,IMsrAaelHospital,theCharlesA.DanaResearchIr\stitute,andtheHarvard- ^ABsrsiigshtaanmtaPnrdofWeossmoerno'fsMeHdoispciitnael,,HBaorsvtoanr,dMMeAdicalSchool,andDepartmentofHealthCarePolicy, ^ABsrsiigshtaanmtaPnrdofWeossmoerno'fsMeHdoispciitnael,,HBaorsvtoanr,dMMeAdicalSchool,andDivisionofGeneralMedicine, ^IWnosmtreunc'tosrHionsMpeitdailc,inBeo,stHoanr,vMarAdMedicalSchool,andDivisionofGeneralMedicine,Brighamand *9SAJesiimsiuooocrriaAEtnceaolRnyeosmstie,satHr,ecahHlePtraholftEehcsosEoncroo,mnHioecmasilcRtsehsRCeeaasrreceahrR,ceIhsn,ce.aI,nrcWc.a,hlWUtaihulatt,mh,BaomMs,tAMonAUniversitySchoolofMedicine,Boston,MA April26,1996 TaTatArhohcneteicgasuetlfrhlroafeaeUcupayoMnouewdrtarihtinronnidrigglsslc'fsio;oaunmrnndbpiodtmlvhieeiiMttsdnoteudpneanoridleorsksjsu:aseencmodRtMfeeetwenriialtn,CsfbHohoy$niEr5gtmRH8hrae9aCtJr,ciuF,6ton9AniH2No,ioCornr.wFAthDnAh5iai0Hcls0PHyh-rrs9eSotw2pjso-aei.r0csst0ti.21n0O0tfW,0efeinDpcdeeewelrrodi;cvueoRenlrortdbysFehlOeriodrktueedlrBetdaaorlbkaeeNfcrouikn.nnadfos6ne,.wrdrlweeTFiddhi.tzgehzTeavhttiheGheeeicwUHoscaenontaanirltn,atrdcihHtboouECprtaiRiranoiesnPossrnFuositmongeeartsxnhapcirmrsiemenspsegrpsrooejA/ndedscAmitinib,nanUlaitiyshntsitydtsrslatr;otheriapaonotnnkrhd.,te TABLEOFAPPENDICES APPENDIXA: DCGProjectKeyPersonnelandConsultants APPENDIXB: DiagnosticGroup(DXGROUP)DefinitionsandProspectiveStatistics TABLEB-1 DXGROUPDiagnosticCategorieswithICD-9-CMCodes TABLEB-2 1992MedicareProgramExpendituresand1991FrequencyofEnrolleesfor PrincipalInpatientDiagnosticGroups(UpperCaseLabels)andHospitaland Physician(All)DiagnosticGroups(LowerCaseLabels) TABLEB-3 Regressionof1992MedicareProgramExpenditureson1991Hospitaland Physician(AU)DiagnosisDiagnosticGroups APPENDIXC: DiagnosticCostGroupSortingAlgorithmResults TABLE-C-1 SortingAlgorithmOutputforPrincipalInpatientDCGModel TABLEC-2 SortingAlgorithmOutputforHospitalandPhysician(All)DiagnosisDCG Model TABLEC-3 SortingAlgorithmOutputforExpandedDCGModel(PrincipalInpatient DiagnosesareinUpperCase) TABLEC-4 SortingAlgorithmOutputforExpandedDCGModelwithProcedures (PrincipalInpatientDiagnosesareinUpperCase) TABLEC-5 SortingAlgorithmOutputforConcurrentPrincipalInpatientDCGModel TABLEC-6 SortingAlgorithmOutputforConcurrentHospitalandPhysician(AU) DiagnosisDCGModel APPENDIXD: Life-SustainingProcedureDefiniHons TABLED-1 'Life-Sustaining'Procedures(5-DigitNimibersareCPT-4Codes) APPENDIXE: DiagnosticCostGroupsbyDiagnosticCategory(DXGROUP) TABLEE-1 DiagnosticCostGroupsbyDiagnosticCategory,forAlternativeDCG Models dcg\final\toc-appn.doc\nab TABLEOFAPPENDICES (continued) APPENDIXF: ProspectiveHierarchicalCoexistingConditionModels TABLEF-1 ProspectiveHierarchicalCoexistingConditions(HCCs) TABLEF-2 HierarchicalCoexistingConditions,ProceduresandHospitalizations, andAugmentedHierarchicalCoexistingConditions,PaymentModels TABLEF-3 HierarchicalCoexistingConditionsClassificationModels TABLEF-4 EstimatedProspectiveHCCPaymentModelParametersforAgedand DisabledSubsamples APPENDIXG: GeographicInputPriceIndex TABLEG-1 AlternativeGeographicAdjustmentFactorsbyMetropolitanArea: GeographicInputPriceIndex(GIPI)andComponents,andIndexed MedicareCapitationPayment(lAAPCC) APPENDIXH: ConcurrentDiagnosticGroup(DXGROUP)andHierarchicalCoexisting ConditionsStatistics TABLEH-1 1992MedicareProgramExpendituresand1992FrequencyofEnrolleesfor ConcurrentPrincipalInpatientDiagnosticGroups(UpperCaseLabels)and HospitalandPhysicianDiagnosticGroups(LowerCaseLabels) TABLEH-2 Regressionof1992MedicareProgramExpenditureson1992Hospitaland Physician(All)DiagnosisDiagnosticGroups TABLEH-3 ConcurrentHierarchicalCoexistingConditions(HCCs) TABLEH-4 HierarchicalCoexistingConditionsConcurrentModelParameterEstimates APPENDIXI: SpecialtyCodesConsideredPhysicianSpecialties TABLEI-l 1991SpecialtyCodesConsideredPhysicianSpecialties ii dcg\final\toc-appn.doc\nab APPENDIX A: DCGPROJECTKEYPERSONNEL ANDCONSULTANTS APPENDIXA: DCGPROJECTKEYPERSONNELANDCONSULTANTS HEALTHECONOMICSRESEARCH,INC.SENIORSTAFF PRINCIPALINVESTIGATOR: RANDALLP.ELLIS,PH.D. TITLE: ProfessorofEconomics AFFILIATION: EconomicsDepartment,BostonUniversity MAILINGADDRESS: 270BayStateRoad Boston,MA 02215 TELEPHONENOS.: BU: (617)353-2741;HER: (617)487-0200; FAXNO.: (617)353-4449 E-MAIL: [email protected]@her-cher.org PROJECTDIRECTOR: GREGORYC.POPE,M.S. TITLE: VicePresident AFFILIATION: HealthEconomicsResearch,Inc. MAILINGADDRESS: HealthEconomicsResearch,Inc. 300FifthAvenue,SixthFloor Waltham,MA02154 TELEPHONENO. (617)487-0200,Ext.134 FAXNO.: (617)487-0202 E-MAIL: [email protected] H.E.R.STAFF: DEBRAA.DAYHOFF,PH.D. TITLE: SeniorEconomist AFHLIATION: HealthEconomicsResearch,Inc. MAILINGADDRESS: HealthEconomicsResearch,Inc. 300FifthAvenue,SixthFloor Waltham,MA 02154 TELEPHONENO.: (617)487-0200,Ext.142 FAXNO.: (617)487-0202 E-MAIL: [email protected] A-1 dcg\fmal\key-pers.doc\nab-apr.l996 HARVARDMEDICALSCHOOLFHYSICL^NCONSULTANTS CONSULTANT: JOHNZ.AYANIAN,M.D.,M.P.P. SPECIALTY: InternalMedicine TITLE: AssistantProfessorofMedicine,HarvardMedicalSchool AFHLIATION: BrighamandWomen'sHospital MAILINGADDRESS: BrighamandWomen'sHospital DepartmentofHealthCarePolicy HarvardMedicalSchool 2B5osSthoant,tMucAkSt0.2,1P1a5rcelB,FirstFloor TELEPHONENO.: (617)732-7464; FAXNO.: (617)432-0173 E-MAIL: [email protected] CONSULTANT: DAVIDW.BATES,M.D.,M.Sc. SPECIALTY: InternalMedicine TITLE: AssistantProfessorofMedicine,HarvardMedicalSchool AFHLIATION: BrighamandWomen'sHospital MAILINGADDRESS: DivisionofGeneralMedicine,A-2 BrighamandWomen'sHospital 75FrancisStreet Boston,MA02115 TELEPHONENO.: (617)732-7063 FAXNO.: (617)732-7072 E-MAIL: [email protected] CONSULTANT: HELENBURSTIN,M.D. SPECIALTY: InternalMedicine TFILE: InstructorinMedicine,HarvardMedicalSchool AFHLIATION: BrighamandWomen'sHospital MAILINGADDRESS: DivisionofGeneralMedicine BrighamandWomen'sHospital 75FrancisStreet Boston,MA02115 TELEPHONENO. (617)732-7063 FAXNO.: (617)732-7072 E-MAIL: [email protected] A-2 dcg\final\key-pers.doc\nab-apr.l996 HARVARDMEDICALSCHOOLPHYSICIANCONSULTANTS (continued) CONSULTANT: LISAlEZZONI,M.D.,M.Sc. SPECIALTY: GeneralMedicine/HealthServicesResearch TITLE: AssociateProfessorofMedicine,HarvardMedicalSchool AITILIATIONS: BethIsraelHospital,TheCharlesA.DanaResearchInstitute andTheHarvard-ThomdikeLaboratory MAILINGADDRESS: GeneralMedicine BethIsraelHospital,LY-326 330BrooklineAvenue Boston,MA02215 TELEPHONENO.: (617)667-5871 FAXNO.: (617)667-4926 E-MAIL: [email protected] PHYSICL\NSPECIALISTCONSULTANTS CONSULTANT: SCOTTSTROUP,M.D.,M.P.H. SPECIALTY: Psychiatry TITLE: ResearchFellow,J.F.KennedySchoolofGovernment; ClinicalFellowinPsychiatry,CambridgeHospital MAILINGADDRESS: 28CambridgeTerrace Cambridge,MA 02140 TELEPHONENO.: (617)868-4353 FAXNO.: (617)496-9053 E-MAIL: CONSULTANT: HOWARDLEIBOWITZ,M.D. SPECIALTY: Ophthalmology TITLE: Chairman&Professor,DepartmentofOphthalmology; OphthalmologistinChiefatUniversityHospital AFHLIATION: BostonUniversitySchoolofMedicine MAILINGADDRESS: 80E.ConcordStreet SuiteL907 Boston,MA02118 TELEPHONENO. (617)638-4550 FAXNO.: (617)638-5337 E-MAIL: A-3 dcg\fmal\key-pers.doc\nab-apr.l996 PHYSICIANSPECIALISTCONSULTANTS (continued) CONSULTANT: RENEEROSSI,M.D. SPECIALTY: Otolaryngology TITLE: ClinicalInstructorofOtolaryngology,HarvardMedicalSchool AFHLIATION: DeaconessHospital MAILINGADDRESS: HarvardMedicalSchool DepartmentofOtolaryngology DeaconessHospital 110FrancisStreet Boston,MA 02215 TELEPHONENO. (617)632-7340 FAXNO.: (617)632-1086 E-MAIL: PHYSICIANREVIEWERS CONSULTANT: WILLIAMSTEPHENAARON,M.D. SPECIALTY: GeneralSurgery TITLE: ClinicalAssistantProfessorofSurgery AFFILIATION: UniversityofLouisviUeSchoolofMedicine MAILINGADDRESS: Aaron&Walker,P.S.C. 801BarretAvenue Suite116 Louisville,KY40204 TELEPHONENO.: (502)583-6241 FAXNO.: (502)589-7912 E-MAIL: CONSULTANT: DEBORAHALLEN,M.D. SPECIALTY: FamilyPractice TITLE: Professor&Chairman, DepartmentofFamilyMedicine AFHLIATION: IndianaUniversitySchoolofMedicine MAILINGADDRESS: IndianaUruversitySchoolofMedicine 1110WestMichigan LongHospital Indianapolis,IN46202 TELEPHONENO. (317)278-0300 FAXNO.: (317)274-4444 E-MAIL: AA dcg\final\key-pers.doc\nab-apr.l996 PHYSICIANRFVIEWERS (continued) CONSULTANT: CHARLESCLARK,M.D. SPECIALTY: Endocrinology TITLE: Co-Director,RegenstriefInstitute; ProfessorofMedicine&Pharmacology AITILIATION: IndianaUniversitySchoolofMedicine MAILINGADDRESS: RegenstriefHealthCenter IndianaUniversitySchoolofMedicine 1001WestTenthSta-eet Indianapolis,IN46202 TELEPHONENO. (317)630-6374 FAXNO.: (317)630-6962 E-MAIL: [email protected] CONSULTANT: MAGRUDERC.DONALDSON,M.D. SPECIALTY: VascularSurgery TITLE: AssociateProfessorofSurgery AFHLIATION: BrighamandWomen'sHospital/HarvardMedicalSchool MAILINGADDRESS: DepartmentofSurgery,DivisionofVascularSurgery BrighamandWomen'sHospital 75FrancisStreet Boston,MA 02115 TELEPHONENO. (617)732-6624;(617)732-6918 FAXNO.: (617)730-2876 E-MAIL: [email protected] HEALTHSERVICESRESEARCHCONSULTANTS CONSULTANT: ARLENEASH,PH.D. TITLE: AssociateResearchProfessor, BostonUniversityMedicalSchool& SchoolofPublicHealth AFFILIATION: BostonUniversitySchoolofMedicine MAILINGADDRESS: BostonUniversitySchoolofMedicine HealthCareResearchUnit 720HarrisonAvenue Suite1102 Boston,MA02118 TELEPHONENO. (617)638-8818 FAXNO.: (617)638-8026 E-MAIL: [email protected] A-5 dcg\fmal\key-pets.doc\nab-apr.l996