Table 2.
ICD-10 disease code used for identification of patients with stroke and comorbidities and ICD-9-CM code used for identification of interventions or procedures
| Disease | ICD-10 |
| Stroke | |
| Ischaemic stroke | I63 |
| Intracerebral haemorrhage stroke | I61 |
| Subarachnoid haemorrhage stroke | I60 |
| Comorbidities | |
| Hypertension | I10 |
| Diabetes mellitus | E11.900 |
| Hyperlipidaemia | E78.500 |
| Atrial fibrillation | G91.900 |
| Coronary atherosclerotic heart disease | I25.103 |
| Cardiac arrhythmia | I49.900 |
| Hyperuricaemia | E79.001 |
| Sequelae of cerebral infarction | I69.300 |
| Lacunar cerebral infarction | I63.801 |
| Encephalopathy | G31.902 |
| Cerebral hernia | G93.501 |
| Occlusion and stenosis of unspecified cerebral artery | I66.901 |
| Cerebral atherosclerosis | I67.200 |
| Pulmonary infection | J98.414 |
| Pneumonia | J18.900 |
| Aspiration pneumonia | J69.001 |
| Hydrothorax | J94.804 |
| Hypokalemia | E87.600 |
| Hypoproteinaemia | E77.801 |
| Fatty liver | K76.000 |
| Hyperplasia of prostate | N40.x00 |
| Procedures | |
| Intracranial artery thrombectomy | 39.7400×002, 39.7401,39.7400 |
| Carotid artery stenting | 0.63 |
| Vertebral artery balloon angioplasty | 00.6400×009 |
| Intracranial artery stenting/intracranial artery angioplasty | 0.6500 to 0.6200 |
| Vertebral artery stenting | 00.6102 |
| Middle cerebral artery stenting | 00.6501 |
| Evacuation of intracerebral haematoma/evacuation of intracranial haematoma/transtemporal evacuation of intracerebral haematoma | 01.3900×009, 01.2408, 01.3904 |
| Burr-hole drainage of ventricle/burr-hole decompression of skull | 01.3901,01.2414 |
| Stereotactic aspiration of intracranial haematoma/stereotactic puncture and drainage of intracranial haematoma/ hard tunnel puncture and drainage of intracranial haematoma | 01.3905, 01.3900×013, 01.3900×003 |
| Endoscopic drainage of haematoma | 01.3906 |
| Ventriculoperitoneal shunt/ventricoextracranial shunt | 02.3400×002, 02.3900 |
| Wrapping of intracranial aneurysm/resection of intracranial vascular malformation/clipping of carotid aneurysm | 39.5101 |
| Resection of intracranial aneurysm | 38.6100×002 |
| Neuroendoscopic clipping of intracranial aneurysm | 39.5100×004 |
| Clipping of posterior communicating artery aneurysm | 39.5104 |
| Clipping of anterior cerebral artery–anterior communicating artery aneurysm | 39.5107 |
| Clipping of middle cerebral artery aneurysm | 39.5103 |
| Clipping of cerebral aneurysm | 39.5100×007 |
| Clipping of aneurysm | 39.5100 |
| Interventions | |
| Intracranial aneurysm embolisation/intracranial aneurysm coil embolisation/intracranial aneurysm embolisation/middle cerebral aneurysm embolisation | 39.7203, 39.7204, 39.7209, 39.7200×006 |
| Intracranial artery stenting/intracranial artery stent-assist coil embolisation | 00.6500×008, 00.6500, 39.7205 |
| Intracranial and cervical artery occlusion | 39.7500 to 39.7200 |
| Carotid aneurysm embolisation | 39.7206 |
| Carotid aneurysm coil embolisation | 39.7207 |
| Internal carotid embolisation | 39.7200×004 |
| Carotid artery stenting | 00.6300 |
| Wrapping of intracranial aneurysm | 39.5201 |
| Clipping of intracranial vascular malformation | 38.8101 |
| Other arteriorrhaphy | 39.5200 |
| Clipping of anterior cerebral artery aneurysm | 39.5102 |
| Resection of intracranial vascular malformation | 38.6101 |
| Clipping of carotid aneurysm | 39.5101 |
| Resection of intracranial aneurysm | 38.6100×002 |
| Neuroendoscopic clipping of intracranial aneurysm | 39.5100×004 |
| Clipping of posterior communicating artery aneurysm | 39.5104 |
| Clipping of anterior cerebral artery–anterior communicating artery aneurysm | 39.5107 |
| Clipping of middle cerebral artery aneurysm | 39.5103 |
| Clipping of cerebral aneurysm | 39.5100×007 |
| Clipping of aneurysm | 39.5100 |
ICD-10, International Classification of Diseases, 10th Revision; ICD-9-CM, International Classification of Diseases, Ninth Revision, Clinical Modification.