OASIS · CMS Q&As
M1005: CMS OASIS Q&As
2 questions CMS has answered, quoted whole from the CMS OASIS Q&As.
M1005 on the OASIS item lookup
M1005. In OASIS field M1005 - Inpatient Discharge Date, if there is no date, do you just fill in zeros?
As noted in the “Skip” instructions for item M1000 - Inpatient Facilities, if the patient was not discharged from an inpatient facility within the past 14 days, (i.e., M1000 has a response of NA), M1005 - Inpatient Discharge Date would be skipped If the patient was discharged from an inpatient facility during the past 14 days, but the date is unknown, mark UK at M1005 and leave the date blank.
[Q&A EDITED 05/22; EDITED 10/18; EDITED & Number updated 04/15; M number updated 09/09]
M1005. Our patient was confirmed as inpatient status on 11/27. However, on 11/28 his status was changed to outpatient observation. (We have documentation to confirm these dates and change in status.) The patient remained in the facility as "observation" until 12/1. We performed a ROC assessment on 12/2. What date do we enter in M1005 - Inpatient Discharge Date? Is it 11/28, the day his status went from inpatient to observation or do we use the date he actually left the hospital (i.e., 12/1)? If we are supposed to use the 11/28 date, will that impact our compliance with performing a ROC within 48 hours of hospital discharge?
The M1005 - Inpatient Discharge Date, identifies the date of the most recent discharge from an inpatient facility within the past 14 days. Assuming the patient, in the above scenario, was discharged from the inpatient status and admitted to an outpatient observation status, 11/28 would be the appropriate date to enter into M1005. Clinical documentation will explain the unusual events that led to the non-compliant Resumption of Care (ROC) date. (Note that a Transfer and ROC would only be required if the patient’s admission met the definition of a qualifying inpatient stay (admitted to an inpatient facility for 24 hours or longer for reasons other than diagnostic testing).
[Q&A EDITED 05/23; EDITED 05/22; ADDED & EDITED 06/14; Previously CMS Qtrly Q&A 01/13 Q5]
Also mentioned in
Source: CMS OASIS Q&As: Category 4 - OASIS Data Set: Forms and Items (March 2026), text extracted from the PDF with pdftotext, retrieved 2026-10-09. Works of the US Government are in the public domain.
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