Carotid ultrasound scan (primary care)
Name carotid_us_gprd
Chapter Circulatory disease/Cerebrovascular disease
Carotid ultrasound 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
5 Code conflict (normal/potentially abnormal)
6 Code conflict (normal/abnormal)
7 Code conflict (potentially abnormal/abnormal)
IF Read code in carotid ultrasound codelist, THEN gprd_carotid_us =

appropriate category.

IF Read code in carotid ultrasound codelist AND enttype = 339 or 251, THEN

gprd_carotid_us = appropriate category based on data1.

ELSE gprd_carotid_us = 0
Codelist version1
Codelist authorsJulie George, Emily Herrett, Liam Smeeth, Harry Hemingway
Creation date15 Apr 2011
Category (code) Clinical code Clinical term Datasource lookup
Results normal (1) 5C01.00 Carotid artery doppler normal 13995
Results abnormal (3) 5C10.00 Carotid artery doppler abnormal 12413
Results not recorded (4) 585Q.00 Carotid artery doppler assessment 18366
Results not recorded (4) 7P08000 Ultrasound of carotid artery 51257
comments powered by Disqus