>> For example he may need to get his house modified/renovated to better accommodate a wheelchair, install a stair lift etc. Does the NHS cover all such costs in the UK?
Some years back, yes. Today in an environment of severe budgetary constraint, still I would hope so. FWIW some so-called "socialized" schemes actually have ring-fenced accident compensation insurance that would see him paid $ compensation for loss of limbs, plus whatever facilities and care is needed, forever.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1
