OASIS-E2 took effect on April 1, 2026, and most agencies trained on it in March. Six months later, the same few corrections keep coming back from QA: a transportation item coded backwards, a resumption-of-care assessment missing three items, a falls count that does not match the incident log.
None of these OASIS-E2 changes is large. That is exactly why they persist. Small changes get one slide in training and then lose to habit. This guide lists what changed, where rework concentrates, and gives you a short audit to find your own error patterns.
The OASIS-E2 Changes, Item by Item
CMS's OASIS-E2 change table lists ten changes from OASIS-E1, and the OASIS-E2 Guidance Manual, effective April 1, 2026, summarizes them in chapter 1:
- A1250 Transportation is removed and replaced by a revised A1255 Transportation, collected at start of care (SOC) and resumption of care (ROC) only. A1250 had also been collected at discharge.
- B0200 Hearing, B1000 Vision and A1110 Language are added to the ROC time point. They were already collected at SOC.
- A0810 Sex replaces M0069 Gender at SOC, with no change in the number of data elements.
- O0350, the patient's COVID-19 vaccination item, is removed from the transfer, death at home and discharge time points.
- J1900 Number of Falls has revised response descriptions for injury and major injury, which now point to definitions in the manual.
- Skip patterns change at M0102 (now skipping to A1255) and at M1000 (the NA response now skips to B0200 Hearing at ROC).
The manual also adds OASIS questions and answers and a new chapter 1 section on all-payer OASIS collection. The page that hosts the manual, CMS OASIS user manuals, lists the final manual and the final OASIS-E2 Q&As, both published February 26, 2026.
The All-Payer Rule Sits Underneath Everything
The new chapter 1 section matters because it changes who gets an OASIS at all. The manual explains that, effective July 1, 2025, OASIS collection and submission are required for patients with any pay source who are receiving skilled services, are not exempt, and have a SOC M0090 date on or after July 1, 2025. Its examples of any pay source include charity care, no payer and self-pay. One exception: outpatient therapy billed under Medicare Part B without a home health plan of care in effect.
The manual tells agencies to apply the Medicare definition of skilled services regardless of payer. The rework pattern here is a private-pay or commercial skilled patient admitted without an OASIS because "it isn't Medicare." If your intake checklist still asks "Medicare or Medicaid?" before triggering OASIS, change the question to "skilled service, any payer?"
The Coding Trap in A1255 Transportation
A1255 asks: "In the past 12 months, has lack of reliable transportation kept you from medical appointments, meetings, work or from getting things needed for daily living?" The responses are:
- 0. Yes
- 1. No
- 7. Patient declines to respond
- 8. Patient unable to respond
Read that again: 0 is Yes. Clinicians who spent years with check-all-that-apply A1250, or with items where 0 means no, reach for 0 when the patient says no. The record then reports a transportation barrier the patient does not have, and nobody notices until QA reads the narrative.
Three more rules from the manual that generate corrections:
- If the patient declines, code 7 and do not fill the gap from a proxy or the chart.
- If the patient is unable to respond, a proxy may answer. Medical record documentation is used only when the patient cannot respond and no proxy answers.
- A response given through an interpreter is a patient response. Do not code 8.
Fix it in the form, not just in training. If your template still shows A1250 response labels, or puts 1 at the top, rebuild it.
ROC Assessments Got Longer
Adding hearing, vision and language at ROC sounds trivial. The manual's rationale is that these items feed risk adjustment for quality measures and must be available at the start of the quality episode, which includes ROC.
The timing pressure is real. Under 42 CFR 484.55(d)(2), the comprehensive assessment must be updated within 48 hours of the patient's return home from a hospital admission of 24 hours or more for any reason other than diagnostic tests, or on the practitioner-ordered resumption date. A clinician completing an ROC from an E1-era checklist misses three items, and the record either comes back from QA or goes out incomplete.
A1110 Language also asks whether the patient needs or wants an interpreter. If the answer is yes, that should trigger an interpreter for every later visit, not stay inside the assessment.
J1900 Falls: The Definitions Now Live in the Manual
The J1900 responses for injury and major injury used to carry their definitions on the form. In E2 they read "as described in the OASIS manual." The definitions are now in section J:
- Injury (except major): includes skin tears, abrasions, lacerations, superficial bruises, hematomas, sprains, or any fall-related injury that causes the patient to complain of pain.
- Major injury: includes traumatic bone fractures, joint dislocations or subluxations, internal organ injuries, amputations, spinal cord injuries, head injuries and crush injuries.
The coding rules that produce rework:
- Code each fall once, at the highest level of injury.
- Count falls anywhere during the quality episode. A fall at the doctor's office counts. A fall during a qualifying inpatient stay does not.
- A fracture confirmed as pathological rather than traumatic is not a major injury from a fall.
- If the agency learns the true injury level later, correct the record under its correction policy. The manual says the M0090 date would not necessarily change.
The usual mismatch: an aide reports a fall, an incident report is filed, and the discharging clinician never sees it. Make the fall log part of the discharge and transfer assessment workflow.
Skip Patterns and Software Templates
The M0102 and M1000 skip changes are where EHR templates break quietly. A template that still skips from M1000 NA to B1300 Health Literacy at ROC jumps over the newly added B0200 and B1000. The clinician never sees the items and the record goes out with dashes, which the manual says CMS expects to be a rare occurrence.
Ask your vendor three questions. Which OASIS data submission specifications version does the form follow? Were the E2 skip patterns tested at both SOC and ROC? Is O0350 removed from transfer, death at home and discharge?
A Six-Month Rework Audit You Can Run This Week
- 1.Pull a sample. Thirty assessments completed since April 1: ten SOC, ten ROC, ten transfer or discharge.
- 2.Check A1255 on every SOC and ROC. Compare the code with the narrative. Count reversals and any proxy or chart-based codes entered when the patient declined.
- 3.Check B0200, B1000 and A1110 on every ROC. Count dashes and blanks.
- 4.Check J1900 on every transfer and discharge. Compare it with the incident log for the same episode.
- 5.Check timing. Under 42 CFR 484.45, each completed assessment must be transmitted within 30 days of completion, and the encoded data must accurately reflect the patient's status at the time of assessment.
- 6.Calculate an error rate per item and share it with clinicians by name of item, not by name of clinician.
- 7.Repeat in 60 days and compare.
Collaboration Is Allowed, Responsibility Is Not Shared
CMS's one clinician convention guidance, still posted with the E2 manual, lets the assessing clinician gather input from other agency staff, the patient, caregivers and the physician to complete OASIS items. The assessing clinician remains responsible for the responses, and M0090 reflects the last day they gathered or received input. If an aide's report is what tells you about a fall, that is legitimate input. The clinician still decides the code.
Where Systems Help
Most E2 rework is a template problem wearing a training problem's clothes. If your home health line runs on different software from personal care or hospice, as described in the cost of running three systems, every form change has to be made more than once. Nuraflow is being designed with OASIS-E2 workflows inside clinical documentation, routing incomplete items before billing, as part of its home health line.
This article is general information. For coding questions, use the current OASIS-E2 Guidance Manual and Q&As, and send unresolved questions to the CMS home health quality help desk.