If you pass the limited capability formwork assessment you will then have another test, the limited capability for work-related activity assessment. If you pass this test you will be placed in the support group if you are on a legacy benefit or placed in LCWRA group if you are in receipt of UC.
The Support Group descriptors and the Exceptional Circumstances are listed in the Claiming ESA guides in the members area from page 20 onwards.
Gary
Nothing on this board constitutes legal advice - always consult a professional about specific problems