The best outcome you can get for D in that scene is that command of the army is temporarily transferred to one of their lieutenants while they recover, but any talk of removing their title is shot down by the Crown/their allies. The worst case scenario is that the Crown is badgered into looking for substitutes while D recovers and D risks having their title stripped from them during that time.
Which outcome you get depends on whether you were successfully able to fire the Minister of Law in CH9, and if you did not manage that, then whether you were able to recruit any allies such as Lady Naza or Minister Awir. If you didn't manage to fire the Minister of Law and you have neither Lady Naza or Minister Awir on your side, then you will get the worst outcome. Hope that helps!!