Data Set Name: NIS_2004_CORE Number of Observations: 8004571 Total Record Length: 506 Total Number of Variables: 126 Columns Description: ======= ============ 1- 3 Database name 5- 8 Discharge year of data 10- 25 File name 27- 29 Variable number 31- 59 Variable name 61- 63 Starting column of variable in ASCII file 65- 67 Ending column of variable in ASCII file 69 Non-zero number of digits after decimal point for numeric variable 71- 74 Variable type (Num=numeric; Char=character) 76-175 Variable label NIS 2004 Core 1 KEY 1 14 Num HCUP record identifier NIS 2004 Core 2 AGE 15 17 Num Age in years at admission NIS 2004 Core 3 AGEDAY 18 20 Num Age in days (when age < 1 year) NIS 2004 Core 4 AMONTH 21 22 Num Admission month NIS 2004 Core 5 ASOURCE 23 24 Num Admission source (uniform) NIS 2004 Core 6 ASOURCEUB92 25 25 Char Admission source (UB-92 standard coding) NIS 2004 Core 7 ASOURCE_X 26 33 Char Admission source (as received from source) NIS 2004 Core 8 ATYPE 34 35 Num Admission type NIS 2004 Core 9 AWEEKEND 36 37 Num Admission day is a weekend NIS 2004 Core 10 DIED 38 39 Num Died during hospitalization NIS 2004 Core 11 DISCWT 40 50 7 Num Weight to discharges in AHA universe NIS 2004 Core 12 DISPUB92 51 52 Num Disposition of patient (UB-92 standard coding) NIS 2004 Core 13 DISPUNIFORM 53 54 Num Disposition of patient (uniform) NIS 2004 Core 14 DQTR 55 56 Num Discharge quarter NIS 2004 Core 15 DRG 57 59 Num DRG in effect on discharge date NIS 2004 Core 16 DRG18 60 62 Num DRG, version 18 NIS 2004 Core 17 DRGVER 63 64 Num DRG grouper version used on discharge date NIS 2004 Core 18 DSHOSPID 65 77 Char Data source hospital identifier NIS 2004 Core 19 DX1 78 82 Char Principal diagnosis NIS 2004 Core 20 DX2 83 87 Char Diagnosis 2 NIS 2004 Core 21 DX3 88 92 Char Diagnosis 3 NIS 2004 Core 22 DX4 93 97 Char Diagnosis 4 NIS 2004 Core 23 DX5 98 102 Char Diagnosis 5 NIS 2004 Core 24 DX6 103 107 Char Diagnosis 6 NIS 2004 Core 25 DX7 108 112 Char Diagnosis 7 NIS 2004 Core 26 DX8 113 117 Char Diagnosis 8 NIS 2004 Core 27 DX9 118 122 Char Diagnosis 9 NIS 2004 Core 28 DX10 123 127 Char Diagnosis 10 NIS 2004 Core 29 DX11 128 132 Char Diagnosis 11 NIS 2004 Core 30 DX12 133 137 Char Diagnosis 12 NIS 2004 Core 31 DX13 138 142 Char Diagnosis 13 NIS 2004 Core 32 DX14 143 147 Char Diagnosis 14 NIS 2004 Core 33 DX15 148 152 Char Diagnosis 15 NIS 2004 Core 34 DXCCS1 153 156 Num CCS: principal diagnosis NIS 2004 Core 35 DXCCS2 157 160 Num CCS: diagnosis 2 NIS 2004 Core 36 DXCCS3 161 164 Num CCS: diagnosis 3 NIS 2004 Core 37 DXCCS4 165 168 Num CCS: diagnosis 4 NIS 2004 Core 38 DXCCS5 169 172 Num CCS: diagnosis 5 NIS 2004 Core 39 DXCCS6 173 176 Num CCS: diagnosis 6 NIS 2004 Core 40 DXCCS7 177 180 Num CCS: diagnosis 7 NIS 2004 Core 41 DXCCS8 181 184 Num CCS: diagnosis 8 NIS 2004 Core 42 DXCCS9 185 188 Num CCS: diagnosis 9 NIS 2004 Core 43 DXCCS10 189 192 Num CCS: diagnosis 10 NIS 2004 Core 44 DXCCS11 193 196 Num CCS: diagnosis 11 NIS 2004 Core 45 DXCCS12 197 200 Num CCS: diagnosis 12 NIS 2004 Core 46 DXCCS13 201 204 Num CCS: diagnosis 13 NIS 2004 Core 47 DXCCS14 205 208 Num CCS: diagnosis 14 NIS 2004 Core 48 DXCCS15 209 212 Num CCS: diagnosis 15 NIS 2004 Core 49 ECODE1 213 217 Char E code 1 NIS 2004 Core 50 ECODE2 218 222 Char E code 2 NIS 2004 Core 51 ECODE3 223 227 Char E code 3 NIS 2004 Core 52 ECODE4 228 232 Char E code 4 NIS 2004 Core 53 E_CCS1 233 236 Num CCS: E Code 1 NIS 2004 Core 54 E_CCS2 237 240 Num CCS: E Code 2 NIS 2004 Core 55 E_CCS3 241 244 Num CCS: E Code 3 NIS 2004 Core 56 E_CCS4 245 248 Num CCS: E Code 4 NIS 2004 Core 57 ELECTIVE 249 250 Num Elective versus non-elective admission NIS 2004 Core 58 FEMALE 251 252 Num Indicator of sex NIS 2004 Core 59 HOSPID 253 257 Num HCUP hospital identification number NIS 2004 Core 60 HOSPST 258 259 Char Hospital state postal code NIS 2004 Core 61 LOS 260 264 Num Length of stay (cleaned) NIS 2004 Core 62 LOS_X 265 270 Num Length of stay (as received from source) NIS 2004 Core 63 MDC 271 272 Num MDC in effect on discharge date NIS 2004 Core 64 MDC18 273 274 Num MDC, version 18 NIS 2004 Core 65 MDNUM1_R 275 279 Num Physician 1 number (re-identified) NIS 2004 Core 66 MDNUM2_R 280 284 Num Physician 2 number (re-identified) NIS 2004 Core 67 NDX 285 286 Num Number of diagnoses on this record NIS 2004 Core 68 NECODE 287 289 Num Number of E codes on this record NIS 2004 Core 69 NEOMAT 290 291 Num Neonatal and/or maternal DX and/or PR NIS 2004 Core 70 NIS_STRATUM 292 295 Num Stratum used to sample hospital NIS 2004 Core 71 NPR 296 297 Num Number of procedures on this record NIS 2004 Core 72 PAY1 298 299 Num Primary expected payer (uniform) NIS 2004 Core 73 PAY1_X 300 309 Char Primary expected payer (as received from source) NIS 2004 Core 74 PAY2 310 311 Num Secondary expected payer (uniform) NIS 2004 Core 75 PAY2_X 312 321 Char Secondary expected payer (as received from source) NIS 2004 Core 76 PL_UR_CAT4 322 323 Num Patient Location: Urban-Rural 4 Categories NIS 2004 Core 77 PR1 324 327 Char Principal procedure NIS 2004 Core 78 PR2 328 331 Char Procedure 2 NIS 2004 Core 79 PR3 332 335 Char Procedure 3 NIS 2004 Core 80 PR4 336 339 Char Procedure 4 NIS 2004 Core 81 PR5 340 343 Char Procedure 5 NIS 2004 Core 82 PR6 344 347 Char Procedure 6 NIS 2004 Core 83 PR7 348 351 Char Procedure 7 NIS 2004 Core 84 PR8 352 355 Char Procedure 8 NIS 2004 Core 85 PR9 356 359 Char Procedure 9 NIS 2004 Core 86 PR10 360 363 Char Procedure 10 NIS 2004 Core 87 PR11 364 367 Char Procedure 11 NIS 2004 Core 88 PR12 368 371 Char Procedure 12 NIS 2004 Core 89 PR13 372 375 Char Procedure 13 NIS 2004 Core 90 PR14 376 379 Char Procedure 14 NIS 2004 Core 91 PR15 380 383 Char Procedure 15 NIS 2004 Core 92 PRCCS1 384 386 Num CCS: principal procedure NIS 2004 Core 93 PRCCS2 387 389 Num CCS: procedure 2 NIS 2004 Core 94 PRCCS3 390 392 Num CCS: procedure 3 NIS 2004 Core 95 PRCCS4 393 395 Num CCS: procedure 4 NIS 2004 Core 96 PRCCS5 396 398 Num CCS: procedure 5 NIS 2004 Core 97 PRCCS6 399 401 Num CCS: procedure 6 NIS 2004 Core 98 PRCCS7 402 404 Num CCS: procedure 7 NIS 2004 Core 99 PRCCS8 405 407 Num CCS: procedure 8 NIS 2004 Core 100 PRCCS9 408 410 Num CCS: procedure 9 NIS 2004 Core 101 PRCCS10 411 413 Num CCS: procedure 10 NIS 2004 Core 102 PRCCS11 414 416 Num CCS: procedure 11 NIS 2004 Core 103 PRCCS12 417 419 Num CCS: procedure 12 NIS 2004 Core 104 PRCCS13 420 422 Num CCS: procedure 13 NIS 2004 Core 105 PRCCS14 423 425 Num CCS: procedure 14 NIS 2004 Core 106 PRCCS15 426 428 Num CCS: procedure 15 NIS 2004 Core 107 PRDAY1 429 431 Num Number of days from admission to PR1 NIS 2004 Core 108 PRDAY2 432 434 Num Number of days from admission to PR2 NIS 2004 Core 109 PRDAY3 435 437 Num Number of days from admission to PR3 NIS 2004 Core 110 PRDAY4 438 440 Num Number of days from admission to PR4 NIS 2004 Core 111 PRDAY5 441 443 Num Number of days from admission to PR5 NIS 2004 Core 112 PRDAY6 444 446 Num Number of days from admission to PR6 NIS 2004 Core 113 PRDAY7 447 449 Num Number of days from admission to PR7 NIS 2004 Core 114 PRDAY8 450 452 Num Number of days from admission to PR8 NIS 2004 Core 115 PRDAY9 453 455 Num Number of days from admission to PR9 NIS 2004 Core 116 PRDAY10 456 458 Num Number of days from admission to PR10 NIS 2004 Core 117 PRDAY11 459 461 Num Number of days from admission to PR11 NIS 2004 Core 118 PRDAY12 462 464 Num Number of days from admission to PR12 NIS 2004 Core 119 PRDAY13 465 467 Num Number of days from admission to PR13 NIS 2004 Core 120 PRDAY14 468 470 Num Number of days from admission to PR14 NIS 2004 Core 121 PRDAY15 471 473 Num Number of days from admission to PR15 NIS 2004 Core 122 RACE 474 475 Num Race (uniform) NIS 2004 Core 123 TOTCHG 476 485 Num Total charges (cleaned) NIS 2004 Core 124 TOTCHG_X 486 500 2 Num Total charges (as received from source) NIS 2004 Core 125 YEAR 501 504 Num Calendar year NIS 2004 Core 126 ZIPInc_Qrtl 505 506 Num Median household income quartile for patient's ZIP Code