Table II.

Online only. List of ICD-9-CM codes for comorbidities

Comorbidity	ICD9 code
Index hospitalization
Congestive heart failure	398.91, 402.01, 402.11, 402.91, 404.01, 404.03, 404.11, 404.91, 404.13, 404.93, 425.4, 425.5, 425.7, 425.8, 425.9, 428.0, 428.1, 428.20, 428.22, 428.30, 428.32, 428.40, 428.42, 428.9
Cardiac arrhythmia	426.0, 426.10, 426.11, 426.12, 426.13, 426.7, 426.9, 427.0, 427.1, 427.2, 427.3, 427.9, V45.0, V53.3
Valvular disease	093.2, 394, 395, 396, 397, 424, V42.2, V43.3
Coronary disease	412, 413, 414, 429.2
Diabetes	250
Hypertension	401, 402, 403, 404, 405
Pulmonary diseases	416, 417.9, 490, 491, 492, 493, 494, 495.0, 495.1, 495.2, 495.3, 495.4, 495.5, 495.6, 495.8, 495.9, 496, 500, 501, 502, 503, 504, 505, 506.0, 506.2, 506.4, 506.9, 508.1, 508.8, 508.9
Clinically significant lower extremity vascular diseases	440.22, 440.23, 440.24, 440.3, 444.22, V43.4
Renal atherosclerosis	440.1
Vascular intestine disease	557.1
Renal failure	403.01, 403.11, 403.91, 404.02, 404.03, 404.12, 404.13, 404.92, 404.93, 585, 588.0, V45.1, V56.0, V56.1, V56.2, V56.3, V56.8
Other renal diseases	582, 583.0, 583.1, 583.2, 583.4
Kidney transplant	V420
Liver disease	070.22, 070.23, 070.32, 070.33, 070.44, 070.54, 070.9, 456.0, 456.1, 571, 572.1, 572.2, 572.3, 572.4, 572.8, 573.0, 573.1, 573.8, 573.9
Cerebrovascular diseases and paralysis	342, 344.1, 344.3, 344.4, 344.5, 344.9, 437.0, 438
Other neurological diseases	330, 331, 332, 333, 334.0, 334.1, 334.2, 334.4, 334.8, 335.0, 335.1, 335.2, 335.8, 335.9, 336.0, 336.2, 343, 344.0, 348.1, 348.3, 344.2, 344.6, 345, 437.3, 437.4, 437.5, 437.6, 437.7
Hyperlipidemia	272
Cancer	140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 170, 171, 172, 174, 175, 176, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203.0, 238.6
Rheumatoid arthritis	446, 701.0, 710.0, 710.1, 710.2, 710.3, 710.4, 710.8, 710.9, 711.2, 719.3, 714, 720, 725, 728.5, 728.89
Pre-index hospitalizations
History of heart failure	398.91, 402.01, 402.11, 402.91, 404.01, 404.03, 404.11, 404.91, 404.13, 404.93, 425.4, 425.5, 425.7, 425.8, 425.9, 428
Cardiac arrhythmia	426, 427.0, 427.1, 427.2, 427.3, 427.4, 427.5, 785.0, 996.01, 996.04, V45.0, V53.3
Valvular disease	093.2, 394, 395, 396, 397, 424, V42.2, V43.3
Coronary disease	410, 412, 413, 414, 429.2
Pulmonary	415, 416, 417, 490, 491, 492, 493, 494, 495, 496, 500, 501, 502, 503, 504, 505, 506.0, 506.2, 506.4, 506.9, 508
Clinically significant lower extremity vascular diseases	440.22, 440.23, 440.24, 440.3, 444.22, 996.7, V43.4
Renal atherosclerosis	440.1, 445.81
Vascular intestine disease	557.1, 557.9
Hypertension	401, 402, 403, 404, 405, 458.0, 458.1, 458.8, 458.9
Hyperlipidemia	272
Cerebrovascular diseases and paralysis	342, 344.1, 344.3, 344.4, 344.5, 344.9, 362.30, 362.31, 362.34, 433, 434, 435, 436, 437.8, 437.9, 438, 784.3
Other neurological diseases	330, 331, 332, 333, 334.0, 334.1, 334.2, 334.3, 334.4, 334.8, 334.9, 336.0, 335.0, 335.1, 335.2, 335.8, 335.9, 336.0, 336.2, 340, 343, 344.0, 344.2, 344.6, 345, 348.1, 348.3, 430, 431, 432, 437.3, 437.4, 437.5, 437.6, 437.7, 780.3
Diabetes	250
Renal failure	V45.1, V56.0, V56.1, V56.2, V56.3, V56.8, 403.01, 403.11, 403.91, 404.02, 404.03, 404.12, 404.13, 404.92, 404.93, 585, 586, 588.0
Renal diseases	582, 583.0, 583.1, 583.2, 583.4, 583.6, 583.7
Liver disease	070.22, 070.23, 070.32, 070.33, 070.44, 070.54, 070.6, 070.9, 456.0, 456.1, 456.2, 571, 572.2, 572.3, 572.4, 572.8, 573
Cancer	140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 170, 171,172, 174, 175, 176, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203.0, 238.6
Kidney transplant	V42.0
Rheumatoid arthritis	446, 701.0, 710.0, 710.1, 710.2, 710.3, 710.4, 710.8, 710.9, 711.2, 719.3, 714, 720, 725, 728.5, 728.89, 729.30