*Generally these hospital codes (99221 99221 99222 99223 99231 99232 99233 -99238) are used to report E/M services to psychiatric patients in short-term (e.g., acute care) settings. The nursing facility codes (99301 99301 99302 99303 99311 99312 -99313) are used to report physician E/M services provided in psychiatric residential treatment centers.