Table 3.
Most prevalent diagnoses during hospitalizations* between 0-1 year after the index date
| Kawasaki disease cases | ICD-9 code ** | n (%) | ICD-10 code† | n (%) | ||
|---|---|---|---|---|---|---|
| 4461 | Kawasaki disease | 108 (36.9) | M303 | Kawasaki disease | 329 (46.4) | |
| 2880 | Neutropenia | 14 (4.8) | R509 | Fever, unspecified | 36 (5.1) | |
| 558, 5580 | Gastroenteritis or colitis | 10 (3.4) | I254 | Coronary artery aneurysm and dissection | 13 (1.8) | |
| V581 | Chemotherapy for neoplasm | 8 (2.7) | B349 | Viral infection, unspecified | 12 (1.7) | |
| 4939 | Asthma | 6 (2.1) | J4500 | Asthma | 12 (1.7) | |
| 7803 | Seizures | 6 (2.1) | K529 | Gastroenteritis or colitis | 11 (1.6) | |
| 7860 | Dyspnea and respiratory abnormalities | 6 (2.1) | J353 | Hypertrophy of tonsils with hypertrophy of adenoids | 10 (1.4) | |
| 7806 | Fever, unspecified | 6 (2.1) | J189 | Pneumonia | 8 (1.1) | |
| 486 | Pneumonia | NR | A084 | Viral intestinal infection | 7 (1.0) | |
| - | - | - | A080 | Rotaviral enteritis | 6 (0.9) | |
| Comparators | ICD-9 code ** | n (%) | ICD-10 code† | n (%) | ||
| 4939, 4930 | Asthma | 596 (11.4) | J4500 | Asthma | 802 (7.4) | |
| 486, 4860 | Pneumonia | 309 (5.9) | J189 | Pneumonia | 640 (5.9) | |
| 558, 5580 | Gastroenteritis or colitis | 306 (5.9) | K529, A099 | Gastroenteritis or colitis | 556 (5.1) | |
| 7803 | Seizures | 247 (4.7) | Z511 | Chemotherapy session for neoplasm | 283 (2.6) | |
| 2765 | Volume depletion | 205 (3.9) | J219 | Acute bronchiolitis | 251 (2.3) | |
| 4644 | Acute laryngitis (croup) | 181 (3.5) | A084 | Viral intestinal infection | 250 (2.3) | |
| 4661 | Acute bronchiolitis | 162 (3.1) | J050 | Acute laryngitis (croup) | 246 (2.3) | |
| - | - | - | J353 | Hypertrophy of tonsils with hypertrophy of adenoids | 212 (2.0) | |
| - | - | - | R509 | Fever, unspecified | 176 (1.6) | |
*Hospitalization diagnostic coding captured in the discharge abstract database (DAD).
**ICD-9 coding used from April 1, 1995 until March 31, 2002.
†ICD-10 coding used from April 1, 2002 until Mar 31, 2019.
NR: not reported due to small cell size.