Data Set Name: NIS_2003_CORE Number of Observations: 7977728 Total Record Length: 505 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 2003 CORE 1 KEY 1 14 Num HCUP record identifier NIS 2003 CORE 2 AGE 15 17 Num Age in years at admission NIS 2003 CORE 3 AGEDAY 18 20 Num Age in days (when age < 1 year) NIS 2003 CORE 4 AMONTH 21 22 Num Admission month NIS 2003 CORE 5 ASOURCE 23 24 Num Admission source (uniform) NIS 2003 CORE 6 ASOURCEUB92 25 25 Char Admission source (UB-92 standard coding) NIS 2003 CORE 7 ASOURCE_X 26 33 Char Admission source (as received from source) NIS 2003 CORE 8 ATYPE 34 35 Num Admission type NIS 2003 CORE 9 AWEEKEND 36 37 Num Admission day is a weekend NIS 2003 CORE 10 DIED 38 39 Num Died during hospitalization NIS 2003 CORE 11 DISCWT 40 49 4 Num Weight to discharges in AHA universe NIS 2003 CORE 12 DISPUB92 50 51 Num Disposition of patient (UB-92 standard coding) NIS 2003 CORE 13 DISPUNIFORM 52 53 Num Disposition of patient (uniform) NIS 2003 CORE 14 DQTR 54 55 Num Discharge quarter NIS 2003 CORE 15 DRG 56 58 Num DRG in effect on discharge date NIS 2003 CORE 16 DRG18 59 61 Num DRG, version 18 NIS 2003 CORE 17 DRGVER 62 63 Num DRG grouper version used on discharge date NIS 2003 CORE 18 DSHOSPID 64 76 Char Data source hospital identifier NIS 2003 CORE 19 DX1 77 81 Char Principal diagnosis NIS 2003 CORE 20 DX2 82 86 Char Diagnosis 2 NIS 2003 CORE 21 DX3 87 91 Char Diagnosis 3 NIS 2003 CORE 22 DX4 92 96 Char Diagnosis 4 NIS 2003 CORE 23 DX5 97 101 Char Diagnosis 5 NIS 2003 CORE 24 DX6 102 106 Char Diagnosis 6 NIS 2003 CORE 25 DX7 107 111 Char Diagnosis 7 NIS 2003 CORE 26 DX8 112 116 Char Diagnosis 8 NIS 2003 CORE 27 DX9 117 121 Char Diagnosis 9 NIS 2003 CORE 28 DX10 122 126 Char Diagnosis 10 NIS 2003 CORE 29 DX11 127 131 Char Diagnosis 11 NIS 2003 CORE 30 DX12 132 136 Char Diagnosis 12 NIS 2003 CORE 31 DX13 137 141 Char Diagnosis 13 NIS 2003 CORE 32 DX14 142 146 Char Diagnosis 14 NIS 2003 CORE 33 DX15 147 151 Char Diagnosis 15 NIS 2003 CORE 34 DXCCS1 152 155 Num CCS: principal diagnosis NIS 2003 CORE 35 DXCCS2 156 159 Num CCS: diagnosis 2 NIS 2003 CORE 36 DXCCS3 160 163 Num CCS: diagnosis 3 NIS 2003 CORE 37 DXCCS4 164 167 Num CCS: diagnosis 4 NIS 2003 CORE 38 DXCCS5 168 171 Num CCS: diagnosis 5 NIS 2003 CORE 39 DXCCS6 172 175 Num CCS: diagnosis 6 NIS 2003 CORE 40 DXCCS7 176 179 Num CCS: diagnosis 7 NIS 2003 CORE 41 DXCCS8 180 183 Num CCS: diagnosis 8 NIS 2003 CORE 42 DXCCS9 184 187 Num CCS: diagnosis 9 NIS 2003 CORE 43 DXCCS10 188 191 Num CCS: diagnosis 10 NIS 2003 CORE 44 DXCCS11 192 195 Num CCS: diagnosis 11 NIS 2003 CORE 45 DXCCS12 196 199 Num CCS: diagnosis 12 NIS 2003 CORE 46 DXCCS13 200 203 Num CCS: diagnosis 13 NIS 2003 CORE 47 DXCCS14 204 207 Num CCS: diagnosis 14 NIS 2003 CORE 48 DXCCS15 208 211 Num CCS: diagnosis 15 NIS 2003 CORE 49 ECODE1 212 216 Char E code 1 NIS 2003 CORE 50 ECODE2 217 221 Char E code 2 NIS 2003 CORE 51 ECODE3 222 226 Char E code 3 NIS 2003 CORE 52 ECODE4 227 231 Char E code 4 NIS 2003 CORE 53 E_CCS1 232 235 Num CCS: E Code 1 NIS 2003 CORE 54 E_CCS2 236 239 Num CCS: E Code 2 NIS 2003 CORE 55 E_CCS3 240 243 Num CCS: E Code 3 NIS 2003 CORE 56 E_CCS4 244 247 Num CCS: E Code 4 NIS 2003 CORE 57 ELECTIVE 248 249 Num Elective versus non-elective admission NIS 2003 CORE 58 FEMALE 250 251 Num Indicator of sex NIS 2003 CORE 59 HOSPID 252 256 Num HCUP hospital identification number NIS 2003 CORE 60 HOSPST 257 258 Char Hospital state postal code NIS 2003 CORE 61 LOS 259 263 Num Length of stay (cleaned) NIS 2003 CORE 62 LOS_X 264 269 Num Length of stay (as received from source) NIS 2003 CORE 63 MDC 270 271 Num MDC in effect on discharge date NIS 2003 CORE 64 MDC18 272 273 Num MDC, version 18 NIS 2003 CORE 65 MDNUM1_R 274 278 Num Physician 1 number (re-identified) NIS 2003 CORE 66 MDNUM2_R 279 283 Num Physician 2 number (re-identified) NIS 2003 CORE 67 NDX 284 285 Num Number of diagnoses on this record NIS 2003 CORE 68 NECODE 286 288 Num Number of E codes on this record NIS 2003 CORE 69 NEOMAT 289 290 Num Neonatal and/or maternal DX and/or PR NIS 2003 CORE 70 NIS_STRATUM 291 294 Num Stratum used to sample hospital NIS 2003 CORE 71 NPR 295 296 Num Number of procedures on this record NIS 2003 CORE 72 PAY1 297 298 Num Primary expected payer (uniform) NIS 2003 CORE 73 PAY1_X 299 308 Char Primary expected payer (as received from source) NIS 2003 CORE 74 PAY2 309 310 Num Secondary expected payer (uniform) NIS 2003 CORE 75 PAY2_X 311 320 Char Secondary expected payer (as received from source) NIS 2003 CORE 76 PL_UR_CAT4 321 322 Num Patient Location: Urban-Rural 4 Categories NIS 2003 CORE 77 PR1 323 326 Char Principal procedure NIS 2003 CORE 78 PR2 327 330 Char Procedure 2 NIS 2003 CORE 79 PR3 331 334 Char Procedure 3 NIS 2003 CORE 80 PR4 335 338 Char Procedure 4 NIS 2003 CORE 81 PR5 339 342 Char Procedure 5 NIS 2003 CORE 82 PR6 343 346 Char Procedure 6 NIS 2003 CORE 83 PR7 347 350 Char Procedure 7 NIS 2003 CORE 84 PR8 351 354 Char Procedure 8 NIS 2003 CORE 85 PR9 355 358 Char Procedure 9 NIS 2003 CORE 86 PR10 359 362 Char Procedure 10 NIS 2003 CORE 87 PR11 363 366 Char Procedure 11 NIS 2003 CORE 88 PR12 367 370 Char Procedure 12 NIS 2003 CORE 89 PR13 371 374 Char Procedure 13 NIS 2003 CORE 90 PR14 375 378 Char Procedure 14 NIS 2003 CORE 91 PR15 379 382 Char Procedure 15 NIS 2003 CORE 92 PRCCS1 383 385 Num CCS: principal procedure NIS 2003 CORE 93 PRCCS2 386 388 Num CCS: procedure 2 NIS 2003 CORE 94 PRCCS3 389 391 Num CCS: procedure 3 NIS 2003 CORE 95 PRCCS4 392 394 Num CCS: procedure 4 NIS 2003 CORE 96 PRCCS5 395 397 Num CCS: procedure 5 NIS 2003 CORE 97 PRCCS6 398 400 Num CCS: procedure 6 NIS 2003 CORE 98 PRCCS7 401 403 Num CCS: procedure 7 NIS 2003 CORE 99 PRCCS8 404 406 Num CCS: procedure 8 NIS 2003 CORE 100 PRCCS9 407 409 Num CCS: procedure 9 NIS 2003 CORE 101 PRCCS10 410 412 Num CCS: procedure 10 NIS 2003 CORE 102 PRCCS11 413 415 Num CCS: procedure 11 NIS 2003 CORE 103 PRCCS12 416 418 Num CCS: procedure 12 NIS 2003 CORE 104 PRCCS13 419 421 Num CCS: procedure 13 NIS 2003 CORE 105 PRCCS14 422 424 Num CCS: procedure 14 NIS 2003 CORE 106 PRCCS15 425 427 Num CCS: procedure 15 NIS 2003 CORE 107 PRDAY1 428 430 Num Number of days from admission to PR1 NIS 2003 CORE 108 PRDAY2 431 433 Num Number of days from admission to PR2 NIS 2003 CORE 109 PRDAY3 434 436 Num Number of days from admission to PR3 NIS 2003 CORE 110 PRDAY4 437 439 Num Number of days from admission to PR4 NIS 2003 CORE 111 PRDAY5 440 442 Num Number of days from admission to PR5 NIS 2003 CORE 112 PRDAY6 443 445 Num Number of days from admission to PR6 NIS 2003 CORE 113 PRDAY7 446 448 Num Number of days from admission to PR7 NIS 2003 CORE 114 PRDAY8 449 451 Num Number of days from admission to PR8 NIS 2003 CORE 115 PRDAY9 452 454 Num Number of days from admission to PR9 NIS 2003 CORE 116 PRDAY10 455 457 Num Number of days from admission to PR10 NIS 2003 CORE 117 PRDAY11 458 460 Num Number of days from admission to PR11 NIS 2003 CORE 118 PRDAY12 461 463 Num Number of days from admission to PR12 NIS 2003 CORE 119 PRDAY13 464 466 Num Number of days from admission to PR13 NIS 2003 CORE 120 PRDAY14 467 469 Num Number of days from admission to PR14 NIS 2003 CORE 121 PRDAY15 470 472 Num Number of days from admission to PR15 NIS 2003 CORE 122 RACE 473 474 Num Race (uniform) NIS 2003 CORE 123 TOTCHG 475 484 Num Total charges (cleaned) NIS 2003 CORE 124 TOTCHG_X 485 499 2 Num Total charges (as received from source) NIS 2003 CORE 125 YEAR 500 503 Num Calendar year NIS 2003 CORE 126 ZIPInc_Qrtl 504 505 Num Median household income quartile for patient's ZIP Code