Hi guest! D9420 – hospital or ambulatory surgical center call Can be cross coded to: 99221 – hospital care, new, level 1 99222 – hospital care, new, level 2 99223 – hospital care, new, level 3 99231 – hospital – subseq., level 1 99232 – hospital – subseq., level 2 99233 – hospital – subseq., level 3 Hope this helps, have a great day!