Table e-1: ICD-9 & 10 codes used in this study.

[Pages:2]Table e-1: ICD-9 & 10 codes used in this study.

ICD code Diagnosis

433.1 Occlusion and stenosis of Carotid artery

433.11 Occlusion and stenosis of carotid artery with cerebral infarction

434.0 Cerebral thrombosis

434.00 Cerebral thrombosis without mention of cerebral infarction

434.01 Cerebral thrombosis with cerebral infarction

434.10 Cerebral embolism without mention of cerebral infarction

434.11 Cerebral embolism with cerebral infarction

434.9 Cerebral artery occlusion, unspecified

434.90 Cerebral artery occlusion, unspecified, without cerebral infarction

434.91 Cerebral artery occlusion, unspecified, with cerebral infarction

437.5 Moyamoya disease

437.9 Unspecified cerebrovascular disease

438

Late effects of cerebrovascular disease

G08

Intracranial and intraspinal phlebitis and thrombophlebitis

G08

Intracranial and intraspinal phlebitis and thrombophlebitis

G93.2 Benign intracranial hypertension

I63.0 Cerebral infarction due to thrombosis of precerebral arteries

I63.2 Cerebral infarction due to occlusion of precerebral arteries not otherwise specified

I63.3 Cerebral infarction due to thrombosis of cerebral arteries

I63.4 Cerebral infarction due to embolism of cerebral arteries

I63.5 Cerebral infarction due to occlusion of cerebral arteries not otherwise specified

I63.6 Cerebral infarction due to cerebral venous thrombosis, nonpyogenic

I63.8 Other cerebral infarction

I63.9 Cerebral infarction unspecified

I64

Stroke, not specified as hemorrhage or infarction

I65.2 Occlusion and stenosis of carotid artery

I66.0 Occlusion and stenosis of middle cerebral artery

I66.1 Occlusion and stenosis of anterior cerebral artery

I66.2 Occlusion and stenosis of posterior cerebral artery

I66.8 Occlusion and stenosis of other cerebral artery

I66.9 Occlusion and stenosis of unspecified cerebral artery

I67.5 Moyamoya disease

I67.8 Other specified cerebrovascular diseases

I67.9 Cerebrovascular disease, unspecified

I69.3 Sequelae of cerebral infarction

I69.4 Sequelae of stroke, not specified as hemorrhage or infarction

Figure e-1. Stratification of patients identified by the ICD-9 and ICD-10 search.

Patients identified by ICD coding

n = 156

Radiologically proven AIS n=78

Parimary haemorrhagic stroke n=36

Extensive hypoxic ischaemic encephalopathy

n=20

Cerebral venous thrombosis n=4

Non-stroke or imaging unavailable n=18

Included n=76

Excluded due to lack of data n=2

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