CMS rolled out OASIS-E2 on April 1, 2026, and unlike most OASIS updates, it didn't land on the usual January 1 cycle. That off-cycle timing caught some agencies without the fiscal year reset they normally use to plan for a version change, and a recent guide to the update notes that the changes themselves are mostly technical, but technical doesn't mean small when it touches every assessment your agency submits.
Here's what actually changed, and what's worth checking on your own charts right now.
What actually changed
Gender item replaced. M0069 (Gender) is gone, replaced by A0810 (Sex). Same underlying data point, new item number and slightly different guidance around how it's documented.
Transportation item replaced. A1250 (Transportation) has been replaced by the modified A1255 (Transportation), collected at Start of Care and Resumption of Care.
Sensory items expanded to Resumption of Care. Hearing (B0200), Vision (B1000), and Language (A1110) used to be collected at Start of Care only. As of E2, they're also collected at ROC, so clinicians completing a resumption assessment need to make sure these fields aren't getting skipped out of habit.
Falls item guidance updated. J1900 (Number of Falls Since SOC/ROC) has updated definitions for what counts as an injury versus a major injury, which matters for consistent scoring across clinicians.
COVID-19 vaccination item retired. O0350 is gone entirely, along with the associated quality measure.
A dash is now allowed on D0150 items. When a mood assessment frequency item genuinely doesn't apply, clinicians can now use a dash instead of forcing a response that doesn't fit.
The legacy iQIES manual entry interface is gone. CMS discontinued the old front-end data entry UI as of April 1. If anyone on your team was still manually entering assessments directly into iQIES instead of submitting through your EMR or a certified pathway, that option no longer exists, full stop.
What to check right now
Start with your software. Confirm your EMR or documentation platform has actually been updated to the E2 item set, not just that someone said it has. Agencies still submitting under the old E1 format after April 1 are generating edit errors and outright rejections, which is a much bigger headache to untangle after the fact than to confirm up front.
Next, check whether your clinicians completing ROC assessments actually know the sensory items are new there. A field that used to only exist at Start of Care is an easy one to skip out of muscle memory, and a missing ROC item creates the same kind of downstream problem as any other incomplete OASIS field.
Then look at whether anyone on staff was relying on manual iQIES entry as a workaround. If so, that workflow needs to be rebuilt around your EMR now, not discovered the next time someone tries to log in.
Finally, pull a small sample of recent charts and confirm the gender and transportation items are mapping correctly to A0810 and A1255. A field that quietly maps to the wrong item can pass a basic completeness check while still being technically wrong.
Why this matters more this year than in past version updates
OASIS-E2 landed on top of the all-payer OASIS mandate, which means [errors that used to only touch your Medicare census now touch your entire patient population](insert all-payer OASIS blog URL). A mapping error or a skipped ROC field isn't confined to one payer type anymore, it's happening across every patient your agency documents, which is exactly why a version update that CMS itself calls a minor revision is still worth treating as a real operational check, not a footnote.
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