OASIS · CMS Q&As
M2301: CMS OASIS Q&As
2 questions CMS has answered, quoted whole from the CMS OASIS Q&As.
M2301 on the OASIS item lookup
M2301. If a patient is admitted to an inpatient facility after initial access in the emergency room, can there be a situation in which that emergent care would NOT be reported on M2301 - Emergent Care, (i.e., patient is only briefly triaged in ER with immediate and direct admit to the hospital)?
M2301 - Emergent Care includes the entire period at or since the most recent SOC/ROC data were collected, including current events. Any access of hospital emergency department care, regardless of how brief the encounter, should be reported on M2301 – Emergent Care if it occurred at the time of or at any time since the most recent SOC/ROC assessment.
[Q&A EDITED 05/22; EDITED 10/16; EDITED 06/14; ADDED 06/05; REVISED 01/11; Previously CMS OCCB Q&A 10/04 Q11]
M2301. In regard to CMS Q&A Cat 2 Q17.1 and 17.1.1, both describe scenarios in which a SOC OASIS assessment was initiated but not completed prior to a patient being re-hospitalized. Please explain the sequence when an Initial Assessment is completed, establishing eligibility, but the patient goes to the Emergency Department with a hospital admission before the HH comprehensive assessment is completed. The patient returns home, and the Comprehensive Assessment and SOC OASIS are completed within the 5-day window from the SOC date. Is a Transfer and ROC completed and if so, how is M2301 - Emergent Care completed since it asks, “At the time of or at any time since the most recent SOC/ROC assessment has the patient utilized a hospital emergency department”? An OASIS assessment had not been completed previously in this scenario, but the Initial Assessment was completed on the SOC date.
When within the assessment timeframe, the start of care date has been established and the patient experiences a qualifying inpatient facility admission of 24 hours or longer for reasons other than diagnostic testing, the Transfer and Resumption of Care assessment would be required. In the situation where the SOC date was established, when completing M2301 Emergent Care at Transfer, look back to the SOC date and report the use of the emergent care.
[Q&A EDITED 10/23; EDITED 05/22; ADDED 10/16; Previously CMS Qtrly Q&A 07/16 Q8]
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.
The monthly home health regs digest
What CMS changed, what's due next, and what to do about it — one email a month, no fluff. Read the first issue