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Table 1 HCUP data elements

From: Predicting disease risks from highly imbalanced data using random forest

  Element Name Element Description
1 AGE Age in years at admission
2 AGEDAY Age in days (when age > 1 year)
3 AMONTH Admission month
4 ASOURCE Admission source (uniform)
5 ASOURCEUB92 Admission source (UB-92 standard coding)
6 ASOURCE_X Admission source (as received from source)
7 ATYPE Admission type
8 AWEEKEND Admission day is a weekend
9 DIED Died during hospitalization
10 DISCWT Weight to discharges in AHA universe
11 DISPUB92 Disposition of patient (UB-92 standard coding)
12 DISPUNIFORM Disposition of patient (uniform)
13 DQTR Discharge quarter
14 DRG DRG in effect on discharge date
15 DRG18 DRG, version 18
16 DRGVER DRG grouper version used on discharge date
17 DSHOSPID Data source hospital identifier
18 DX1 Principal diagnosis
19 DX2 Diagnosis 2
20 DX3 Diagnosis 3
21 DX4 Diagnosis 4
22 DX5 Diagnosis 5
23 DX6 Diagnosis 6
24 DX7 Diagnosis 7
25 DX8 Diagnosis 8
26 DX9 Diagnosis 9
27 DX10 Diagnosis 10
28 DX11 Diagnosis 11
29 DX12 Diagnosis 12
30 DX13 Diagnosis 13
31 DX14 Diagnosis 14
32 DX15 Diagnosis 15
*33 DXCCS1 CCS: principal diagnosis
*34 DXCCS2 CCS: diagnosis 2
*35 DXCCS3 CCS: diagnosis 3
*36 DXCCS4 CCS: diagnosis 4
*37 DXCCS5 CCS: diagnosis 5
*38 DXCCS6 CCS: diagnosis 6
*39 DXCCS7 CCS: diagnosis 7
*40 DXCCS8 CCS: diagnosis 8
*41 DXCCS9 CCS: diagnosis 9
*42 DXCCS10 CCS: diagnosis 10
*43 DXCCS11 CCS: diagnosis 11
*44 DXCCS12 CCS: diagnosis 12
*45 DXCCS13 CCS: diagnosis 13
*46 DXCCS14 CCS: diagnosis 14
*47 DXCCS15 CCS: diagnosis 15
48 ECODE1 E code 1
49 ECODE2 E code 2
50 ECODE3 E code 3
51 ECODE4 E code 4
52 ELECTIVE Elective versus non-elective admission
53 E_CCS1 CCS: E Code 1
54 E_CCS2 CCS: E Code 2
55 E_CCS3 CCS: E Code 3
56 E_CCS4 CCS: E Code 4
57 FEMALE Indicator of sex
58 HOSPID HCUP hospital identification number
59 HOSPST Hospital state postal code
60 KEY HCUP record identifier
61 LOS Length of stay (cleaned)
62 LOS_X Length of stay (as received from source)
63 MDC MDC in effect on discharge date
64 MDC18 MDC, version 18
65 MDNUM1_R Physician 1 number (re-identified)
66 MDNUM2_R Physician 2 number (re-identified)
67 NDX Number of diagnoses on this record
68 NECODE Number of E codes on this record
69 NEOMAT Neonatal and/or maternal DX and/or PR
70 NIS_STRATUM Stratum used to sample hospital
71 NPR Number of procedures on this record
72 PAY1 Primary expected payer (uniform)
73 PAY1_X Primary expected payer (as received from source)
74 PAY2 Secondary expected payer (uniform)
75 PAY2_X Secondary expected payer (as received from source)
76 PL_UR_CAT4 Patient Location: Urban-Rural 4 Categories
77 PR1 Principal procedure
78 PR2 Procedure 2
79 PR3 Procedure 3
80 PR4 Procedure 4
81 PR5 Procedure 5
82 PR6 Procedure 6
83 PR7 Procedure 7
84 PR8 Procedure 8
85 PR9 Procedure 9
86 PR10 Procedure 10
87 PR11 Procedure 11
88 PR12 Procedure 12
89 PR13 Procedure 13
90 PR14 Procedure 14
91 PR15 Procedure 15
92 PRCCS1 CCS: principal procedure
93 PRCCS2 CCS: procedure 2
94 PRCCS3 CCS: procedure 3
95 PRCCS4 CCS: procedure 4
96 PRCCS5 CCS: procedure 5
97 PRCCS6 CCS: procedure 6
98 PRCCS7 CCS: procedure 7
99 PRCCS8 CCS: procedure 8
100 PRCCS9 CCS: procedure 9
101 PRCCS10 CCS: procedure 10
102 PRCCS11 CCS: procedure 11
103 PRCCS12 CCS: procedure 12
104 PRCCS13 CCS: procedure 13
105 PRCCS14 CCS: procedure 14
106 PRCCS15 CCS: procedure 15
107 PRDAY1 Number of days from admission to PR1
108 PRDAY2 Number of days from admission to PR2
109 PRDAY3 Number of days from admission to PR3
110 PRDAY4 Number of days from admission to PR4
111 PRDAY5 Number of days from admission to PR5
112 PRDAY6 Number of days from admission to PR6
113 PRDAY7 Number of days from admission to PR7
114 PRDAY8 Number of days from admission to PR8
115 PRDAY9 Number of days from admission to PR9
116 PRDAY10 Number of days from admission to PR10
117 PRDAY11 Number of days from admission to PR11
118 PRDAY12 Number of days from admission to PR12
119 PRDAY13 Number of days from admission to PR13
120 PRDAY14 Number of days from admission to PR14
121 PRDAY15 Number of days from admission to PR15
122 RACE Race (uniform)
123 TOTCHG Total charges (cleaned)
124 TOTCHG_X Total charges (as received from source)
125 YEAR Calendar year
126 ZIPInc_Qrtl Median household income quartile for patient's ZIP Code
  1. Complete list of 126 HCUP data elements. The elements marked with "*" (rows 33-47) are the ones used in the classification as input variables.
  2. *HCUP data elements used in the classification