Paragraph 2
The claimant is—
undergoing medical or other treatment as an in-patient in a hospital or similar institution; or
recovering from such treatment in circumstances in which the Secretary of State is satisfied that the claimant should be treated as having limited capability for work.
The circumstances in which a claimant is to be regarded as undergoing treatment falling within sub-paragraph (1)(a) include where the claimant is attending a residential programme of rehabilitation for the treatment of drug or alcohol dependency.
For the purposes of this paragraph, a claimant is to be regarded as undergoing treatment as a patient in a hospital or similar institution only if that claimant has been advised by a health care professional to stay overnight or for a longer period following medical or other treatment.