Examination of discordant childhood injury cases based on physician billing records* and pediatric injury surveillance† data (n = 581 children)
| Reasons for discordance | Frequency | % |
|---|---|---|
| *Physician billing claims database (Régie de l’assurance maladie de Québec, RAMQ). | ||
| †Canadian Hospitals Injury Research and Prevention Program (CHIRPP). | ||
| Billed with diagnostic code “multiple unspecified wound or trauma” (95% were classified by CHIRPP as HI or probable HI) | 304 | 52 |
| Billed with diagnostic codes indicating HI or probable HI (41% were classified by CHIRPP as orthopedic) | 99 | 17 |
| Billed with a diagnosis unrelated to injury (for example, sinusitis, chicken pox) (96% were classified by CHIRPP as HI or probable HI) | 107 | 18 |
| Billed as having an UE or LE fracture (84% were classified by CHIRPP as HI or probable HI) | 44 | 8 |
| Billed with a diagnosis possibly related to HI (for example, virus infection, nausea, headache) (100% were classified by CHIRPP as HI or probable HI) | 11 | 2 |
| Lacked a procedure or a diagnostic code precluding classification into one of three groups | 16 | 3 |