Body system impacted 1 year after significant head trauma
| Body system | Frequency | Percent |
| Symptoms, signs, ill-defined conditions | 341 | 24.9 |
| Circulatory system | 210 | 15.3 |
| Respiratory system | 136 | 9.9 |
| Mental disorders | 118 | 8.6 |
| Injury and poisoning | 113 | 8.3 |
| Digestive system | 86 | 6.3 |
| Genitourinary system | 77 | 5.6 |
| Musculoskeletal system | 60 | 4.4 |
| Nervous system | 49 | 3.6 |
| Factors influencing health status | 47 | 3.4 |
| Infectious diseases | 41 | 3.0 |
| Endocrine and metabolic diseases | 37 | 2.7 |
| Neoplasm | 17 | 1.2 |
| Diseases of blood-forming organs | 15 | 1.1 |
| Skin and subcutaneous tissues | 14 | 1.0 |
| Complications of pregnancy | 7 | 0.5 |
| Congenital | 1 | 0.1 |