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OASIS · CMS Q&As

M1000: CMS OASIS Q&As

7 questions CMS has answered, quoted whole from the CMS OASIS Q&As.

CMS OASIS Q&As · March 2026

M1000 on the OASIS item lookup

M1000 Q30Category 4b - OASIS Data Items

M1000. If the patient has outpatient surgery within the 14-day timeframe described in M1000 - Inpatient Facilities, should NA be marked?

The correct response would be NA - Patient was not discharged from an inpatient facility for M1000 - Inpatient Facilities because the patient's status would have been an outpatient for this situation.

[Q&A EDITED 10/23; EDITED 05/22; EDITED 09/09]

M1000 Q32.1Category 4b - OASIS Data Items

M1000. When a patient is discharged from an inpatient facility in the last 5 days of the certification period, should M1000 - Inpatient Facilities on the Resumption of Care (ROC) assessment report inpatient facilities that the patient was discharged from during the 14 days immediately preceding the ROC date or the 14 days immediately preceding the first day of the new certification period?

When completing a Resumption of Care assessment which will also serve as a Recertification assessment, M1000 - Inpatient Facilities should reflect inpatient facility discharges that have occurred during the two-week period immediately preceding the first day of the new certification period.

[Q&A EDITED 05/22; EDITED 01/12; ADDED 08/07; Previously CMS OCCB Q&A 07/06 Q11]

M1000 Q32.2Category 4b - OASIS Data Items

M1000. We had a client who was admitted to an inpatient facility for less than 24 hours. We did not do a Transfer OASIS because the criteria for it were not met. Two days later the patient was discharged from our agency and we completed a discharge comprehensive assessment. Approximately 1 week later, the client developed a wound and was readmitted to our agency. When completing the new SOC comprehensive assessment, how do we mark M1000 regarding Inpatient Facility Discharge in the Past 14 Days?

M1000 - Inpatient Facilities asks if the patient was discharged from an inpatient facility during the past 14 days. In your scenario, you describe a patient who was admitted and discharged from an inpatient facility during the 14 days prior to the completion of the new RFA 1 SOC comprehensive assessment. The inpatient stay would be reported in M1000. M1000 does not ask you to only report inpatient facility stays that meet the criteria for the OASIS Transfer, i.e., it does not require that the stay in the inpatient facility is for 24 hours or longer for reasons other than diagnostic testing. It simply asks whether the patient was discharged from an inpatient facility during the past 14 days.

[Q&A EDITED 10/23; EDITED 05/22; ADDED & M number updated 09/09; Previously CMS OCCB Q&A 10/07 Q12]

M1000 Q32.3Category 4b - OASIS Data Items

M1000. We are seeing more patients referred to our agency that have been in observation bed status while in the hospital (not admitted). What would be the correct response to M1000 - Inpatient Facilities in this case?

M1000 - Inpatient Facilities, is asking from which of the following inpatient facilities was the patient discharged during the past 14 days. If the patient had been admitted to the hospital as an inpatient for observation, it is considered a hospital discharge. If the patient was not admitted as an inpatient, but placed under observation utilizing one of the two G-codes for hospital outpatient department observation services, then it would not be an inpatient facility discharge and therefore not reportable in M1000.

[Q&A EDITED 05/22; ADDED & M number updated 09/09; Previously CMS OCCB Q&A 04/09 Q7]

M1000 Q32.4Category 4b - OASIS Data Items

M1000. For PDGM, is a referral from a Swing Bed facility a referral from an acute care hospital? Or from a SNF?

A patient in a Swing Bed facility may be receiving acute care, or SNF care, or both.

[Q&A ADDED 05/22; Previously CMS Qtrly Q&A 01/20 Q1]

M1000 Q32.5Category 4b - OASIS Data Items

M1000. If a patient has been receiving care in their home under a Hospital at Home program, and is then referred to Home Health within 14 days of discharge from the program, how should M1000 - Inpatient Facility be coded?

The intent of M1000 - Inpatient Facilities is to identify whether the patient has been discharged from an inpatient facility within the 14 days immediately preceding the Start of Care/Resumption of Care Date. In an instance where a patient is receiving care in their home under a Hospital at Home program, they are considered to be in an inpatient facility. This is because the services being provided are being delivered under the coordination of an acute care hospital. If the patient’s discharge from the Hospital at Home program is within the past 14 days, then for M1000, response 3 - Short-stay acute hospital (IPPS) should be checked.

[Q&A ADDED 10/23; Previously CMS Qtrly Q&A 07/23 Q6]

M1000 Q32.8Category 4b - OASIS Data Items

M1000 & M1005. Is treatment in the hospital emergency department and discharge home considered an inpatient admission when scoring the OASIS items M1000 Inpatient Facilities & M1005 - Inpatient Discharge Date?

Treatment in the hospital's emergency department without admission to an inpatient bed is not considered an inpatient admission and would not be reported as such when answering the OASIS items.

[Q&A EDITED 05/22; EDITED 10/18; EDITED & Number updated 04/15; ADDED 12/12; Previously CMS Qtrly Q&A 01/12 Q7]

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.

Every CMS OASIS Q&ACategory 4a - General Questions

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