Cerebral CT scan (primary care)
Name cerebral_ct_gprd
Chapter Circulatory disease/Cerebrovascular disease
Definition
Computed tomography of the brain as recorded in GPRD.
Data Type Categorical
Data sources GPRD
Repeated Yes
Valid event date range 01/01/1900 - 25/03/2010
Agreed 08.04.2011 (Revision 1)
Category Definition
0 Test not done
1 Results normal
2 Results potentially abnormal
3 Results abnormal
4 Results not recorded
Implementation
IF Read code = code on cerebral CT codelist AND enttype = 299 or 251,

THEN gprd_cerebral_ct = appropriate category based on data1.
Codelist version1
Codelist authorsJulie George, Emily Herrett, Liam Smeeth, Harry Hemingway
Creation date14 Apr 2011
Category (code) Clinical code Clinical term Datasource lookup
Results not recorded (4) 5634.00 Tomography - head/neck 27134
Results not recorded (4) 7P02000 Computed tomography of head 49118
Results not recorded (4) 7P08300 Computed Tomography scan of cerebral vessels 86417
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