Pneumothorax (PTX) diagnoses in the validation population
| PTX diagnosis (ICD code) | ICD diagnosis | |
| ICD diagnosis applied originally | ICD diagnosis after re-evaluation | |
| Spontaneous PTX | ||
| With tension (J93.0) | 17 | 256 |
| Without tension (J93.1) | 491 | 666 |
| Iatrogenic PTX | ||
| Post-surgery (J95.8A) | 14 | 117 |
| Iatrogenic (T81.2) | 0 | 67 |
| Traumatic PTX (S.27.0) | 476 | 490 |
| Other kinds of PTX (J93.8) | 15 | 0 |
| Unspecified PTX (J93.9) | 599 | 0 |
| Misclassification | 0 | 36 |
ICD: International Classification of Diseases.