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Table 9 Elixhauser Comorbidity Index*

From: Risk of renal events following intravenous iodinated contrast material administration among inpatients admitted with cancer a retrospective hospital claims analysis

Comorbidity

Codes

Congestive Heart Failure

398.91, 402.01, 402.11, 402.91, 404.01, 404.03, 404.11, 404.13, 404.91, 404.93, 425.4–425.9, 428.x

Cardiac Arrhythmia

426.0, 426.13, 426.7, 426.9, 426.10, 426.12, 427.0–427.4, 427.6–427.9, 785.0, 996.01, 996.04, V45.0, V53.3

Valvular Disease

093.2, 394.x–397.x, 424.x, 746.3–746.6, V42.2, V43.3

Pulmonary Circulation Disorders

415.0, 415.1, 416.x, 417.0, 417.8, 417.9

Peripheral Vascular Disorders

093.0, 437.3, 440.x, 441.x, 093.0, 437.3, 440.x, 441.x, 443.1–443.9, 447.1, 557.1, 557.9, V43.4

Hypertension (Uncomplicated)

401.x

Hypertension (Complicated)

402.x–405.x

Paralysis

334.1, 342.x, 343.x, 344.0–344.6, 344.9

Other Neurological Disorders

331.9, 332.0, 332.1, 333.4, 333.5, 333.92, 334.x–335.x, 336.2, 340.x, 341.x, 345.x, 348.1, 348.3, 780.3, 784.3

Chronic Pulmonary Disease

416.8, 416.9, 490.x − 505.x, 506.4, 508.1, 508.8

Diabetes (Uncomplicated)

250.0–250.3

Diabetes (Complicated)

250.4–250.9

Hypothyroidism

240.9, 243.x, 244.x, 246.1, 246.8

Renal Failure

403.01, 403.11, 403.91, 404.02, 404.03, 404.12, 404.13, 404.92, 404.93, 585.x, 586.x, except 585.6, 588.0, V42.0, V45.1, V56.x

End-stage renal disease

585.6

Liver Disease

070.22, 070.23, 070.32, 070.33, 070.44, 070.54, 070.6, 070.9, 456.0–456.2, 570.x, 571.x, 572.2–572.8, 573.3, 573.4, 573.8, 573.9, V42.7

Peptic Ulcer Disease (excluding bleeding)

531.7, 531.9, 532.7, 532.9, 533.7, 533.9, 534.7, 534.9

AIDS/HIV

042.x–044.x

Lymphoma

200.x–202.x, 203.0, 238.6

Metastatic Cancer

196.x–199.x

Solid Tumor without Metastasis

140.x–172.x, 174.x–195.x

Rheumatoid Arthritis Collagen

446.x, 701.0, 710.0–710.4, 710.8, 710.9, 711.2, 714.x, 719.3, 720.x, 725.x, 728.5, 728.89, 729.30

Coagulopathy

286.x, 287.1, 287.3–287.5

Obesity

278.0

Weight Loss

260.x–263.x, 783.2, 799.4

Fluid and Electrolyte Disorders

253.6, 276.x

Blood Loss Anemia

280.0

Deficiency Anemia

280.1–280.9, 281.x

Alcohol Abuse

265.2, 291.1–291.3, 291.5–291.9, 303.0, 303.9, 305.0, 357.5, 425.5, 535.3, 571.0–571.3, 980.x, V11.3

Drug Abuse

292.x, 304.x, 305.2–305.9, V65.42

Psychoses

293.8, 295.x, 296.04, 296.14, 296.44, 296.54, 297.x, 298.x

Depression

296.2, 296.3, 296.5, 300.4, 309.x, 311

  1. *The ECI Score includes 31 categories (Table 9 in Appendix) of comorbidities, which are associated with mortality. Each category counts as 1 point for a potential ECI score range of 0–31. These comorbidities were identified using diagnosis codes that appear during the visit