Paragraph six part one of https://www.legislation.gov.uk/ukpga/2010/15/schedule/1: "Cancer, HIV infection and multiple sclerosis are each a disability."
Like literally, that is the words of the law as enacted. Cancer is a disability.
But you were probably counting on that.
Don't ascribe bad faith where there is none. I've been castigated as "patronising" for explaining things too often to risk giving unprompted explanations of anything.
I did, however, reference the wrong paragraph in my earlier post, for which I apologise. Paragraph five says, in part: "5 (1) An impairment is to be treated as having a substantial adverse effect on the ability of the person concerned to carry out normal day-to-day activities if—
(a) measures are being taken to treat or correct it, and
(b) but for that, it would be likely to have that effect."
5(2) makes it clear that "measures" includes medical treatment. 5(3) excludes visual impairments that are fully correctable with eye glasses.
So, schedule 1 para 6 makes cancer a disability, no further qualifiers needed. Schedule 1 para 5 makes the prompt treatment to remove the cancerous mole irrelevant when deciding that it's a disability, hence my rhetorical question "What would happen to someone with a cancerous mole who didn't have it treated?" because, untreated, it would spread and kill them, and it's the untreated effect of the condition that the law cares about. And section six para four makes most disability-related protections continue to apply to people who were disabled but aren't any more.
This makes more sense than it seems to on the face of it, because a) doctors can make mistakes and miss a bit of a tumour, and b) past cancer is a risk factor for future cancer. Making cancer be automatically a disability for EqA purposes accommodates that risk.
And none of this has any effect on PIP claims. It's EqA, it's about discrimination and reasonable adjustments. An example of a reasonable adjustment that a skin cancer survivor could request at work would be to have PPE or altered duties to avoid UV exposure that would increase the risk of the cancer recurring, say if working as an arc welder or in an outdoor job.