Sorry, I was in a bit of a rush last night, and I am so sick of the bullshit game that is played at this site. I hadn't been around here in months and months, dropped in to visit last month, and found it well underway in threads on LBN about US immigration policy.
Well look what Caaaanada does. Malevolent right-wing crap.
I practised immigration law for many years, but that was many years ago now. These days my work still brings me into regular contact with it, but not as comprehensively as when I was in practice. So I'm best to direct you to resources rather than use my own words.
The Immigration Manual is the instructions that officers are given.
http://www.cic.gc.ca/english/resources/manuals/index.asphttp://www.cic.gc.ca/english/resources/manuals/op/op12-eng.pdf4. Does the applicant require a medical examination?
• 4. Determine whether the applicant must undergo a medical examination, as required by R30. Foreign students must meet the same medical requirements as those that apply to all temporary residents. For more information, please consult IR3 or the FW Manual.
http://www.cic.gc.ca/english/resources/manuals/ir/ir03-eng.pdfM3 Has a condition for which the potential demand on health or social services is not sufficient to exclude admission under A38(1)(c).
M5 Has a condition that might reasonably be expected to cause excessive demand on health or social services to such an extent that the applicant is inadmissible under A38(1)(c).
In the olden days, I fought a case of a father refused under the "excessive demand" category relating to a heart condition. In those days, the Health Canada manual where all the assessment criteria were laid out wasn't published for public consumption, but I got a copy from an officer at Health Canada headquarters and pored over it, and determined that the father had been improperly evaluated. His codes under the various headings did not add up to an inadmissible rating. However, the law was that we could not challenge the opinion of Health Canada in medical matters. What I was doing, though, wasn't challenging their medical opinion, I was challenging how they had done the math to apply the medical opinion.
I carefully photocopied and bound copies of the relevant parts of the manual, and took it to the appeal hearing with me. The three-person panel was agog with wonderment.
They had never seen the manual before. So I walked them slowly through it, trying to be sure they followed me at every step. If he was assessed "X" under this heading, and "Y" under this heading, he came out as M3, not M5 (see pages 13-14 in the above manual). They seemed to be listening in rapt attention and nodding that they were following as I went along. I got the decision some weeks later, and it contained no reference to the Immigration Manual or anything I had said about it. They denied the appeal. I used to wonder why I bothered getting out of bed some days.
I had a phone conversation with the head of immigration health services at Health Canada one day, a woman widely regarded as a dragon lady. The media had asked me to comment on the policy on HIV-positive applicants -- which was that being HIV positive did
not make an applicant inadmissible (I think this was more from the "public safety" standpoint). This was in the mid-late 1980s when the subject was first having to be addressed. I wanted to get the info from the horse's mouth before commenting. She got quite vehement; I think she'd had a lot of calls and thought I was one more in need of educating. HIV was present in Canada, people already in Canada or coming to Canada could contract HIV right here, and there was no basis for excluding people with HIV.
I won another case when Immigration refused to process a client because he had a condition that required a surgery. A provincial health official testified that this was an unnoticeable drop in the bucket of health care.
So anyway. War stories. I think the actual medical admissibility ratings are probably still in a Health Canada manual rather than an Immigration manual. And I'm not finding it. Maybe they still don't publish it. ;)
But you can see how "Has a condition that might reasonably be expected to cause excessive demand on health or social services" does not equate to "pre-existing condition".
If someone has a condition that is not going to need major surgery during their stay in Canada or put any other kind of
excessive demand on the health system here, they are not inadmissible.