19.—(1) Where it falls to be determined whether a claimant has limited capability for work, that claimant may be called by or on behalf of a health care professional approved by the Secretary of State to attend for a medical examination [F1in person, by telephone or by video].
(2) Subject to paragraph (3), where a claimant fails without good cause to attend for or to submit to an examination mentioned in paragraph (1), the claimant is to be treated as not having limited capability for work.
(3) Paragraph (2) does not apply unless—
(a)written notice of the date, time and place for the examination was sent to the claimant at least seven days in advance; or
(b)that claimant agreed to accept a shorter period of notice whether given in writing or otherwise.