Data Specifications
Updates
December 18, 2025
The Outcome and Assessment Information Set Version E2 (OASIS-E2) Data Submission Specifications Version 3.02.0 are now available in the Downloads section below. This FINAL version applies to the OASIS-E2 item set, which is scheduled for implementation on April 1, 2026. Note that item A0810 replaces M0069_PAT_GENDER, item A1255 replaces the A1250 items, several items were added to RFA 03, and the dash (-) is now an allowed value for the item D0150 frequency items. These item changes resulted in several edit changes.
Review the OASIS-E2 Guidance manual for additional information and the Item Change and Edit Change reports within the data specifications. The draft Guidance Manual for the OASIS-E2 version of the OASIS data set, effective April 1, 2026, is available in the Downloads of the OASIS User Manuals | CMS page, https://www.cms.gov/medicare/quality/home-health/oasis-user-manuals.
Downloads
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OASIS E2 Data Specs (V3.02.0) FINAL (ZIP) (ZIP) -
OASIS Data Specifications Errata v3.01.2 08-12-2024 (PDF) -
OASIS-E1 Data Specs (V3.01.1) FINAL 06-19-2024 (ZIP)
Page Last Modified:
07/01/2026 02:17 PM