Healthcare Cost and Utilization Project (HCUP) SASD Variable Notes

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	Central Distributor SASD: Description of Data Elements - All States This section describes how HCUP data elements are coded, restrictions on their use, their uniform values, and state-specific coding practices for all years and for all states.
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ADATE	Admission date
ADAYWK	Admission day of week
AGE	Age in years at admission
AGEDAY	Age in days (when age < 1 year)
AGEGROUP	Age Group
AGEMONTH	Age in months (when age < 11 years)
AHAID	AHA hospital identifier with the leading 6
AHOUR	Admission Hour
AMONTH	Admission month
ANESTH	Method of Anesthesia
APC	Line item Ambulatory Payment Classification code (as received from source)
APG	Ambulatory Patient Group (as received from source)
APGCATn	Ambulatory Patient Group Category (as received from data source)
APGTYPEn	Ambulatory Patient Group Type (as received from data source)
APGn	Ambulatory Patient Group (as received from data source)
ASOURCE	Admission source (uniform)
ASOURCEUB92	Admission source (UB-92 standard coding)
ASOURCE_X	Admission source (as received from source)
ATYPE	Admission type
AWEEKEND	Admission day is a weekend
AYEAR	Admission year
BILLTYPE	UB-92 bill type
BMONTH	Birth month
BYEAR	Birth year
CCSMGNn	CCS-MHSA general category: diagnosis
CCSMSPn	CCS-MHSA specific category: diagnosis
CHARGE	Line item charges (as received from source)
CHGn	Detailed charges (as received from source)
CHRONBn	Chronic condition body system
CHRONn	Chronic condition indicator
CPTCCSn	CC CPT
CPTDAYn	Number of days from admission to CPT
CPTHCPCS	Line item CPT-4/HCPCS procedure code (as received from source)
CPTM1_n	First CPT-4/HCPCS modifier
CPTM2_n	Second CPT-4/HCPCS modifier
CPTMod1	Line item CPT-4/HCPCS first modifier (as received from source)
CPTMod2	Line item CPT-4/HCPCS second modifier (as received from source)
CPTn	CPT/HCPCS procedure code
DCCHPRn	CCHPR: principal diagnosis
DDATE	Discharge date
DHOUR	Discharge Hour
DIED	Died during hospitalization
DISP	Disposition of patient
DISPUB04	Disposition of patient (UB-04 standard coding)
DISPUB92	Disposition of patient (UB-92 standard coding)
DISPUNIFORM	Disposition of patient (uniform)
DISP_X	Disposition of patient (as received from source)
DMONTH	Discharge month
DNR	Do not resuscitate indicator
DOB	Date of birth
DQTR	Discharge quarter
DSHOSPID	Data source hospital identifier
DSNCPT	Max number of CPT/HCP codes provided
DSNDX	Max number of diagnoses from source
DSNPR	Max number of procedures from source
DSNUM	Data source ID number
DSTYPE	Data source type
DXCCSn	CCS: diagnosis
DXMCCSn	Multi-Level CC Diagnosis
DXPOAn	Diagnosis present on admission indicator
DXSYS	Diagnosis coding system
DXVn	Valitify Flag: Diagnosis
DX_Visit_Reason	Reason for visit diagnosis
DX_Visit_Reasonn	Reason for visit diagnosis
DXn	Diagnosis
DaysToEvent	Days from 'start date' to admission
ECCSMGNn	CCS-MHSA general category: E Code
ECODEn	E code
E_CCSn	CCS: E Code
E_MCCSn	Multi-Level CC E Code
E_POAn	E code present on admission indicator
FEMALE	Indicator of sex
FREESTANDING	Indicator of freestanding ambulatory surgery center
HCUP_AS	HCUP Ambulatory Surgery service indicator
HCUP_ED	HCUP Emergency Department service indicator
HCUP_OS	HCUP Observation Stay service indicator
HISPANIC_X	Hispanic ethnicity (as received from source)
HOSPBRTH	Indicator of birth in this hospital
HOSPID	HCUP hospital identification number
HOSPST	Hospital state postal code
HOSPSTCO	Hospital modified FIPS state/county code
HOSP_NPI	Hospital NPI
Homeless	Indicator that patient is homeless
IDNUMBER	HCUP AHA ID number without the leading 6
KEY	HCUP record identifier
LOS	Length of stay (cleaned)
LOS_X	Length of stay (as received from source)
MARITALSTATUS	Patient's marital status
MARITALSTATUSUB04	Patient's marital status, UB-04 standard coding
MARITALSTATUS_X	Patient's marital status (as received from source)
MDID_S	Attending physician number (synthetic)
MDNUM1_R	Physician 1 number (re-identified)
MDNUM1_S	Physician 1 number (synthetic)
MDNUM2_R	Physician 2 number (re-identified)
MDNUM2_S	Physician 2 number (synthetic)
MDNUM3_R	Physician 3 number (re-identified)
MDNUM3_S	Physician 3 number (synthetic)
MDNUM4_R	Physician 4 number (re-identified)
MDSPEC	Attending Physician specialty (as received from source)
MDSPEC1	Physician 1 specialty (as received from source)
MDSPEC2	Physician 2 specialty (as received from source)
MEDINCSTQ	Median household income state quartile for patient ZIP Code
MOMNUM_R	Mother's number (re-identified)
MRN_R	Medical record number (re-identified)
MRN_S	Medical record number (synthetic)
NCHRONIC	Number of chronic conditions
NCPT	Number of CPT/HCPCS procedures on this record
NDX	Number of diagnoses on this record
NECODE	Number of E codes on this record
NEOMAT	Neonatal and/or maternal DX and/or PR
NPR	Number of procedures on this record
NREVCD	Number of revenue codes for this discharge
OPservice	Indicator of outpatient service (as received from source)
ORPROC	Major operating room procedure indicator
ORTIME	Operating Room Time
PAY1	Primary expected payer (uniform)
PAY1_N	Primary expected payer, nonuniform
PAY1_X	Primary expected payer (as received from source)
PAY2	Secondary expected payer (uniform)
PAY2_N	Secondary expected payer, nonuniform
PAY2_X	Secondary expected payer (as received from source)
PAY3	Tertiary expected payer (uniform)
PAY3_X	Tertiary expected payer (as received from source)
PAYER1_X	Primary expected payer plan identifier (as received from source)
PAYER2_X	Secondary expected payer plan identifier (as received from source)
PCCHPRn	CCHPR: principal procedure
PCLASSn	Procedure class
PL_CBSA	Patient location: Core Based Statistical Area (CBSA)
PL_MSA1993	Patient location: Metropolitan Statistical Area (MSA), 1993
PL_NCHS2006	Patient Location: NCHS Urban-Rural Code (V2006)
PL_NHCS2006	Patient Location: NCHS Urban-Rural Code (V2006)
PL_RUCA	Patient location: Rural-Urban Commuting Area (RUCA) Codes
PL_RUCA10	Patient location: Rural-Urban Commuting Area (RUCA) Codes, ten levels
PL_RUCA10_2005	Patient location: Rural-Urban Commuting Area (RUCA) Codes, ten levels
PL_RUCA2005	Patient location: Rural-Urban Commuting Area (RUCA) Codes
PL_RUCA4	Patient location: Rural-Urban Commuting Area (RUCA) Codes, four levels
PL_RUCA4_2005	Patient location: Rural-Urban Commuting Area (RUCA) Codes, four levels
PL_RUCC	Patient location: Rural-Urban Continuum Codes(RUCC)
PL_RUCC2003	Patient location: Rural-Urban Continuum Codes(RUCC), 2003
PL_UIC	Patient location: Urban Influence Codes
PL_UIC2003	Patient location: Urban Influence Codes, 2003
PL_UR_CAT4	Patient Location: Urban-Rural 4 Categories
PL_UR_CAT5	Patient Location: Urban-Rural 5 Categories
PNUM_R	Person number (re-identified)
PNUM_S	Person number (synthetic)
PRCCSn	CCS: procedure
PRDATEn	Date of procedure
PRDAYn	Number of days from admission
PRMCCSn	Multi-Level CC Procedure
PRMONTHn	Month of procedure
PROCESS	HCUP-3 discharge processing ID number
PROCTYPE	Procedure type indicator
PROFEE	Indicates Professional Fees in TOTCHG
PRSYS	Procedure coding system
PRVn	Validity Flag: Procedure
PRYEARn	Year of procedure
PRn	Procedure
PSTATE	Patient State postal code
PSTCO	Patient state/county FIPS code
PSTCO2	Patient state/county FIPS code, possibly derived from ZIP Code
PointOfOriginUB04	Point of origin for admission or visit, UB-04 standard coding
PointOfOrigin_X	Point of origin for admission or visit, as received from source
PrimLang	Primary language of patient
RACE	Race (uniform)
RACE_X	Race (as received from source)
READMIT	Readmission
REVCDn	Revenue code (as received from source)
REVCHGn	Detailed charges for revenue code (as received from source)
REVCODE	Line item revenue code (as received from source)
SEQ_ASD	HCUP AS record sequence number
SERVDAY	Line item days from admission date
SEX	Sex
STATE_AS	State Ambulatory Surgery service indicator
STATE_ED	State Emergency Department service indicator
STATE_OS	State Observation Stay service indicator
SURGID_S	Primary surgeon number (synthetic)
SURGSPEC	Primary surgeon specialty code (as received from source)
SpannedServiceCount	Count of spanned services included on this record, as received from source
TOTCHG	Total charges (cleaned)
TOTCHG_X	Total charges (as received from source)
TOWN	Patient town of residence (as received from source)
UNITS	Line item units (as received from source)
UNITn	Units of service (as received from source)
U_BLOOD	Utilization Flag: Blood
U_CATH	Utilization Flag: Cardiac Catheterization Lab
U_CCU	Utilization Flag: Coronary Care Unit (CCU)
U_CHESTXRAY	Utilization Flag: Chest X-Ray
U_CTSCAN	Utilization Flag: Computed Tomography Scan
U_DIALYSIS	Utilization Flag: Renal Dialysis
U_ECHO	Utilization Flag: Echocardiology
U_ED	Utilization Flag: Emergency Room
U_EEG	Utilization Flag: Electroencephalogram
U_EKG	Utilization Flag: Electrocardiogram
U_EPO	Utilization Flag: EPO
U_ICU	Utilization Flag: Intensive Care Unit (ICU)
U_LITHOTRIPSY	Utilization Flag: Lithotripsy
U_MHSA	Utilization Flag: Mental Health and Substance Abuse
U_MRT	Utilization Flag: Medical Resonance Technology
U_NEWBN2L	Utilization Flag: Nursery Level II
U_NEWBN3L	Utilization Flag: Nursery Level III
U_NEWBN4L	Utilization Flag: Nursery Level IV
U_NUCMED	Utilization Flag: Nuclear Medicine
U_OBSERVATION	Utilization Flag: Observation Room
U_OCCTHERAPY	Utilization Flag: Occupational Therapy
U_ORGANACQ	Utilization Flag: Organ Acquisition
U_OTHIMPLANTS	Utilization Flag: Other Implants
U_PACEMAKER	Utilization Flag: Pacemaker
U_PHYTHERAPY	Utilization Flag: Physical Therapy
U_RADTHERAPY	Utilization Flag: Radiology - Therapeutic and/or Chemotherapy Administration
U_RESPTHERAPY	Utilization Flag: Respiratory Services
U_SPEECHTHERAPY	Utilization Flag: Speech - Language Pathology
U_STRESS	Utilization Flag: Cardiac Stress Test
U_ULTRASOUND	Utilization Flag: Ultrasound
VisitLink	Visit linkage variable
YEAR	Calendar year
ZIP	Patient zip code
ZIP3	Patient ZIP Code, first 3 digits
ZIPINC_QRTL	Median household income national quartile for patient ZIP Code
ZIP_S	Patient zip code (synthetic)
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