| Comorbidity | ICD-9 code |
| 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 | Chronic CHF | 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 | Coronary disease | 412, 413, 414, 429.2 | Valvular disease | 093.2, 394, 395, 396, 397, 424, 746.3, 746.4, 746.5, 746.6, V42.2, V43.3 | Cardiac comorbidities | Any of the codes for cardiac arrhythmia, chronic CHF, coronary disease, or valvular disease | Chronic pulmonary disease | 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 | Chronic renal failure | 403.01, 403.11, 403.91, 404.02, 404.03, 404.12, 404.13,404.92, 404.93, 585, 586, V42.0, V45.1, V56.0–V56.2, V56.8 | Coagulopathy | 2860–2869, 287.1, 287.3–287.5, 289.81–289.82 | Deficiency anemias | 280.1–281.9, 285.21–285.29, 285.9 | Diabetes | 250 | Hypertension | 401.0, 401.1, 401.9, 402.00, 402.10, 402.90, 403.00, 403.10, 403.90, 404.00, 404.10, 404.90, 405.01, 405.09, 405.11, 405.19, 405.91, 405.99, 462.24, 642.00–642.04, 642.10, 642.70–642.94 | Obesity | 278.0, 278.00, 278.01, V85.30, V85.31, V85.32, V85.33, V85.34, V85.35, V85.36, V85.37, V85.38, V85.39, V85.4, V85.54 | Other neurological disorders | 330.0–331.9, 332.0, 333.4, 333.5, 334.0–335.9, 333.71, 333.72, 333.79, 333.85, 333.94, 338.0, 340, 341.1–341.9, 345.00–345.11, 345.2–345.3, 345.40–345.91, 34700, 34701, 34710, 34711, 348.1, 348.3–348.39, 780.3, 780.39, 784.3 | Paralysis | 342.0–342.12, 342.9–344.9, 438.20–438.53 | Peripheral vascular disease | 440.0–440.9, 441.00–441.9, 442.0–442.9, 443.1–443.9, 444.21, 444.22, 449, 447.1, 557.1, 557.9, V43.4 |
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| Complication | ICD-9 code |
| Acute renal failure | 584 | Cardiac complications | 410.00, 410.01, 410.10, 410.11, 410.20, 410.21, 410.30, 410.31, 410.40, 410.41, 410.50, 410.51, 410.60, 410.61, 410.70, 410.71, 410.80, 410.81, 410.90, 410.91, 411.0, 411.1, 411.81, 411.89, 427.5, 428.21, 428.3, 428.31, 428.32, 428.41, 428.43, 997.1 | Neurological complications | 780.01 344.1 997.02 997.0 435 436, 437.1 | Paraplegia | 344.1 | Posthemorrhagic anemia | 285.1 | Postoperative hemorrhage | 998.1 | Pulmonary complications | 311, 312.9, 415.0, 415.11, 415.12, 415.19, 481, 482.0, 482.1, 482.2, 482.30, 482.31, 482.32, 482.39, 482.81, 482.82, 482.83, 482.84, 482.89, 482.9, 485, 486, 518.0, 518.4, 518.82, 518.84, 528.81, 997.3 | Stroke | 997.02 | Thrombectomy or embolectomy | 38.03, 38.04, 38.06, 38.08 |
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