I have a CSV file with geocoded data that I would like to display in QGIS. How do I open this file? When I go to add CSV layer it asks for X and Y co-ordinates which I do not have as the data is geocoded?
What you are having as GEO_CODE is code for census output area.
First you need to get actual geo data, think its avalible on that page.
Areas are obviously polygons so next you need to decide if that's what you need or you want points. If you want points you can calculate centroids out of polygons.
Next step will be joining of CSV table data with geometry layer. For this you will use GEO_CODE attribut.