I think you may need to check into the exclusionary period for pre-existing conditions with or without a lapse in coverage. Isn't there a difference between a lapse of coverage altogether vs. a change over but with continual coverage? Ask for a notice of effective dates of continual coverage, the declaration with no lapse from your carriers. This then is provided to the new ins. company as proof of coverage so you don't get pooled in the wrong class. Different states have different rules, not sure if this applies in your neck of the woods but some health ins. carriers may impose one 12 month exclusionary period especially if there is a
lapse in coverage. If you had continual coverage (cobra I think would be considered continual coverage of same insurance), does that disqualify you from continued care through another? I don't think so, but could be wrong. You should be able to access this info from the Cobra cite.
If there is or was an exclusionary time period imposed, would that exclusionary period have already come to pass? That would be a question for the employers designated health administrator. Good Luck to you and feel better