Well I was not sure whether if I can get into a company without any degree in computer field, there are times I wonder if it would have been better me doing CS than medicine from the beginning
Focusing on making it medical related won't increase your chances by much if at all, only to narrow your opportunities. If you can code, it shouldn't matter. Speaking from experience and from people I know personally, your lack of a degree isn't the main deterrent from getting a job programming in most cases