Diagnoses (%) at first and return visits to the ED
| Diagnosis/reasons | IDC-9-CM* | All patients first visit(n = 500) | Unscheduled returns second visit(n = 250) |
|---|---|---|---|
| *International Classification of Diseases, 9th Revision, Clinical Modification. | |||
| Abdominal pain | 789 | 7 | 7 |
| Renal colic | 788.0 | 7 | 10 |
| Gastroenteritis | 009.1 | 4 | 4 |
| Respiratory failure | 518.84 | 5 | 6 |
| Precordial pain | 786.51 | 4 | 1 |
| Upper respiratory infection | 465 | 4 | 1 |
| Anxiety attack | 300.00 | 3 | 4 |
| Urinary tract infection | 599.0 | 3 | 2 |
| Upper limb contusion | 923 | 3 | 2 |
| Conjunctivitis | 372.00 | 3 | <1 |
| Lumbalgia/low back pain | 724.2 | 2 | 2 |
| Epistaxis | 784.7 | 2 | 3 |
| Arm/leg pain | 729.5 | 2 | 2 |
| Allergic urticaria | 708.0 | 2 | <1 |
| Asthma attack | 493.91 | 2 | 2 |
| Sprained ankle | 845.0 | 1 | <1 |
| Arterial hypertension | 401.9 | 1 | <1 |
| Biliary colic | 574.20 | 1 | 1 |
| Cranial trauma | 854.02 | 1 | 2 |
| Lower limb contusion | 924 | 1 | 2 |
| Cardiac failure | 428 | 1 | 3 |
| Stroke | 436 | 1 | <1 |
| Orthostatic hypotension | 458.0 | 1 | <1 |
| Cervicalgia | 723.1 | 1 | 1 |
| Radius fracture | 813.81 | 1 | 1 |
| Hand wound | 882 | 1 | <1 |
| Appendicitis | 540 | <1 | 2 |
| Alcohol abstinence syndrome | 303.9 | <1 | 2 |
| Psychotic disorder | 298.9 | <1 | 1 |
| Acute myocardial infarction | 410 | <1 | 1 |
| Pneumonia | 486 | <1 | 1 |
| Hypoglycemia | 251.2 | <1 | 1 |