ICD-10 code | Description | Full dataset | Postcode restricted | ||
---|---|---|---|---|---|
 |  | Correlation | p | Correlation | p |
J11 | Influenza virus not identified | 0.481 | < 0.0001 | 0.419 | < 0.0001 |
J06 | Acute upper respiratory infection multiple and unspecified sites | 0.473 | < 0.0001 | 0.452 | < 0.0001 |
J22 | Unspecified acute lower respiratory infection | 0.433 | < 0.0001 | 0.391 | < 0.0001 |
B34 | Viral infection, unspecified site | 0.398 | < 0.0001 | 0.405 | < 0.0001 |
J18 | Pneumonia organism unspecified | 0.302 | < 0.0001 | 0.250 | < 0.0001 |
'Best' codes combined (r s >0.3) | 0.557 | < 0.0001 | 0.560 | < 0.0001 |