Define CTE Once And Use Every Where

I have to use a CTE based on conditions. But I am not able to write a common CTE and access it on different conditions.
Now I am duplicating the CTE definition inside each if condition. But I expects a solution like bellow to reduce code duplication.

For example

---- I need a common definition of CTE like this.
with CustomGroup( id)
as
(
Select id from Groups g
Inner join GroupStatus s on s.Id = g.Id
Where s.Status = €˜Active€™
)

IF @DisplyStatus=€?UserDetail€?
begin
<!--[if !supportLists]-->- <!--[endif]-->at present CTE is defined here.
select u.* from users u
inner join userGroups ug on ug.UserId = u.Id
inner join CustomGroup cg on cg.Id =ug.GroupId -- Accessing the CTE
end
else if @DisplyStatus=€?UserSimple€?
begin
<!--[if !supportLists]-->- <!--[endif]-->at present CTE is defined here.
select u.FirstName,u.LastName,u.DOB from users u
inner join userGroups ug on ug.UserId = u.Id
inner join CustomGroup cg on cg.Id =ug.GroupId -- Accessing the CTE
end
else if @DisplyStatus=€?UserWithAddress€?
begin

end

Please suggest possibilities, and your suggestions.