Table 1.
Top 10 ICD-9 codes in the two datasets, by raw number of patients and percentage of patients in the dataset.
| CUMC | Geisinger | ||||
|---|---|---|---|---|---|
| 401 | Essential hypertension | 10,669 (79%) | 272 | Disorders of lipoid metabolism | 25,687 (79%) |
| 786 | Symptoms involving respiratory system and other chest symptoms | 7,911 (58%) | 401 | Essential hypertension | 25,065 (77%) |
| 272 | Disorders of lipoid metabolism | 7,908 (58%) | 786 | Symptoms involving respiratory system and other chest symptoms | 19,481(60%) |
| 789 | Other symptoms involving abdomen and pelvis | 7,393 (55%) | 780 | General symptoms | 19,112 (58%) |
| 724 | Other and unspecified disorders of back | 6,518 (48%) | 715 | Osteoarthrosis and allied disorders | 15,974 (49%) |
| 729 | Other disorders of soft tissues | 6,422 (47%) | 724 | Other and unspecified disorders of back | 15,056 (46%) |
| 780 | General symptoms | 6,413 (47%) | 729 | Other disorders of soft tissues | 14,676 (45%) |
| 715 | Osteoarthrosis and allied disorders | 6,048 (45%) | 530 | Diseases of esophagus | 14,016 (43%) |
| 784 | Symptoms involving head and neck | 6,046 (45%) | 719 | Other and unspecified disorders of joint | 13,886 (42%) |
| 250 | Diabetes mellitus | 5,617 (42%) | 788 | Symptoms involving urinary system | 13,529 (41%) |