Table 1.
ICD-9 and ICPC-2 codes for the diseases analysed
| Disease | ICD-9 code | ICPC-2 code |
|---|---|---|
| Pneumococcal disease | ||
| Pneumococcal pneumonia | 481 | R81 |
| Pneumococcal meningitis | 320.1 | |
| Pneumococcal septicaemia | 038.2 | |
| Pneumococcal peritonitis | 567.1 | |
| Influenza | ||
| Influenza | 487 | R80 |
| Influenza due to identified 2009 H1N1 influenza virus | 488.1 | |
| Herpes zoster | ||
| Herpes zoster | 053 | S70 |
| Pertussis | ||
| Whooping cough due to Bordetella pertussis | 033.0 | R71 |
| Whooping cough due to unspecified organism | 033.9 | |
| Pneumonia in whooping cough | 484.3 | |
ICD-9 International Classification of Diseases ninth edition, ICPC-2 International Classification of Primary Care second edition