OASIS-E2 Changes: What Agencies Need to Know
Since August 2025, CMS has been releasing information to prepare agencies for the transition to OASIS-E2, which goes into effect on April 1, 2026. These early releases are designed to give home health agencies time to review the updates, adjust workflows, and educate staff before the changes become mandatory.
CMS has published several key resources as part of this rollout, including:
- Draft OASIS-E2 Instruments
- OASIS-E2 Change Table
- OASIS-E2 All-Item Data Set
- Draft OASIS-E2 Guidance Manual
While OASIS-E2 does not introduce a large number of new items, it does include important refinements to existing items and guidance. These nuanced changes may seem subtle, but they can have meaningful implications for documentation accuracy, quality reporting, and compliance.
Key OASIS-E2 Data Set Changes to Watch For
Agencies should be aware of the following updates that will directly affect assessment and data collection:
- Gender (M0069) is being replaced by Sex (A0810)
- Transportation (A1250) is being replaced by A1255 – Transportation
- Language (A1110), Hearing (B0200), and Vision (B1000) will now also be collected at the Resumption of Care (ROC) time point
- J1900 – Number of Falls Since SOC/ROC includes updated item descriptions
- O0350 – Patient’s COVID-19 Vaccination Is Up to Date is being retired
What’s Changing in the OASIS Guidance?
In addition to updates to the data set, CMS has made several revisions to the OASIS guidance manual to align with OASIS-E2. Notable highlights include:
- A0810 – Sex: The prior Response-Specific Instruction referencing “If the patient does not self-identify” has been removed in the OASIS-E2 version.
- A1255 – Transportation: This item is no longer a “check all that apply” question and will no longer be collected at the Discharge time point. CMS has also updated the Response-Specific Instructions, Coding Instructions, Coding Tips, and Examples.
- J1900 – Number of Falls Since SOC/ROC (along with J1800 – Any Falls Since SOC/ROC): Guidance changes that first appeared in the October 2025 Quarterly OASIS Q&As were further clarified in January 2026 through an OASIS-E1 Guidance Manual Errata. These updates were issued due to their impact on the Respecified Falls with Major Injury quality measure.
What This Means for Your Agency
Although CMS has characterized the transition from OASIS-E1 to OASIS-E2 as involving “minor” changes, the operational impact may be more significant than it appears at first glance. The OASIS-E2 change table alone spans more than 40 pages, underscoring the importance of careful review and preparation.
For agencies, this means:
- Staff education will be critical. Clinicians must understand not just what changed, but why the changes matter and how to apply updated guidance correctly at each time point.
- Assessment workflows may need adjustment. New collection requirements at ROC and the removal of certain discharge items may require updates to internal processes and checklists.
- Quality measure accuracy is at stake. Changes to falls-related items (J1800/J1900) directly impact publicly reported quality measures, making correct interpretation and coding essential.
- Audit and compliance risk remains real. Even small deviations from updated guidance can result in data inconsistencies, survey findings, or payer scrutiny.
- Time pressures are real. Staying current with evolving CMS guidance is challenging during day-to-day operations, but proactive preparation can help prevent downstream issues.
Final Thoughts
OASIS-E2 may not feel like a dramatic overhaul, but the cumulative effect of item-level and guidance changes can be substantial. Taking time now to review the updates, educate staff, and align workflows will help agencies remain compliant, protect quality outcomes, and avoid unnecessary disruptions when OASIS-E2 goes live.
For agencies looking for support, focused education and targeted guidance can make navigating these changes far more manageable.
