| R90 | Abnormal findings on diagnostic imaging of central nervous system |
| R90.0 | Intracranial space-occupying lesion found on diagnostic imaging of central nervous system |
| R90.8 | Other abnormal findings on diagnostic imaging of central nervous system |
| R90.81 | Abnormal echoencephalogram |
| R90.82 | White matter disease, unspecified |
| R90.89 | Other abnormal findings on diagnostic imaging of central nervous system |
| R91 | Abnormal findings on diagnostic imaging of lung |
| R91.1 | Solitary pulmonary nodule |
| R91.8 | Other nonspecific abnormal finding of lung field |
| R92 | Abnormal and inconclusive findings on diagnostic imaging of breast |
| R92.0 | Mammographic microcalcification found on diagnostic imaging of breast |
| R92.1 | Mammographic calcification found on diagnostic imaging of breast |
| R92.2 | Inconclusive mammogram |
| R92.8 | Other abnormal and inconclusive findings on diagnostic imaging of breast |
| R93 | Abnormal findings on diagnostic imaging of other body structures |
| R93.0 | Abnormal findings on diagnostic imaging of skull and head, not elsewhere classified |
| R93.1 | Abnormal findings on diagnostic imaging of heart and coronary circulation |
| R93.2 | Abnormal findings on diagnostic imaging of liver and biliary tract |
| R93.3 | Abnormal findings on diagnostic imaging of other parts of digestive tract |
| R93.4 | Abnormal findings on diagnostic imaging of urinary organs |
| R93.5 | Abnormal findings on diagnostic imaging of other abdominal regions, including retroperitoneum |
| R93.6 | Abnormal findings on diagnostic imaging of limbs |
| R93.7 | Abnormal findings on diagnostic imaging of other parts of musculoskeletal system |
| R93.8 | Abnormal findings on diagnostic imaging of other specified body structures |
| R93.9 | Diagnostic imaging inconclusive due to excess body fat of patient |