sorry that happened to you. just a heads up in some locations, and by some treatment providers DID is still considered a mood disorder or personality disorder if they are going by the IDC or other versions of the DSM then the present one.

my suggestion is talk with your treatment provider, they will be able to explain why the ER diagnosed you (by that I mean wrote down on discharge list) that it was mood disorder. that way should this happen again it might not be so upsetting for you to see that labeling.