You can sign a “late entry” a type of summary note that tells what facts you are aware of according to the patient’s file. The patient’s last treatment was x date, was discharged on x date and is no longer receiving OT services, then sign the discharge with the date you write the note. The paperwork that you write or sign must be dated when you are writing it, and not backdated. Similarly, if an OT intervention note is lost (?) you write a note and date it when you write it, saying that according to your calendar you provided the intervention on x date and provided x services. You can never write a date for the past (backdating) or for the future in anticipation of intervention, only the date you write the note.