OASIS-E2
OASIS-E2 is the current version of the Outcome and Assessment Information Set, effective for home health assessments completed on or after April 1, 2026. It replaced OASIS-E1 with a short list of item changes: M0069 (Gender) was replaced by A0810 (Sex), the A1250 transportation item was replaced by A1255, and the COVID-19 vaccination item O0350 was removed.
Definition
OASIS-E2 is the current version of the Outcome and Assessment Information Set, effective for home health assessments completed on or after April 1, 2026. It replaced OASIS-E1 with a short list of item changes: M0069 (Gender) was replaced by A0810 (Sex), the A1250 transportation item was replaced by A1255, and the COVID-19 vaccination item O0350 was removed.
Why it matters
OASIS-E2 is part of the OASIS & Assessment vocabulary used across home health operations, documentation, and revenue cycle. Understanding it helps clinicians, QA leads, and administrators stay aligned on care quality and compliance.
What Should I Document? 100 OASIS Situations Home Health Nurses Face Every Day
100 real OASIS scenarios, worked end to end — clinical situation, common mistake, better approach, and key takeaway. Built around OASIS-E2 (effective April 1, 2026) to turn what you assess into accurate, defensible documentation.
Related terms
Listen While You Read
Conversations on oasis & assessment
Episodes from Inside Home Health that put OASIS-E2 in operational context.
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OASIS-E1 vs OASIS-E2: A Complete Side-by-Side Comparison for Home Health Agencies
Wondering what changed between OASIS-E1 and OASIS-E2? OASIS-E2 is an incremental update, not a redesign. The framework, five time points, and PDGM methodology stay the same, while CMS refines Section GG, cognitive and behavioral items, SDOH, and SPADEs. This guide compares both versions side by side and gives you a transition plan and checklist.