Outcome and Assessment Information Set (OASIS) Vendors
The purpose of this page is to display technical information related to OASIS Software. Vendors can also register to receive CMS software and system updates.
Reference & Manuals
OASIS-C1/ICD-10 Q & A's
Jan 04, 2015
- Cover
- Index
- Category 1-Applicability
- Category 2-Comprehensive Assessment
- Category 3-Follow-up Assessments
- Category 4-OASIS Data Set-Forms and Items
- Category 5-HAVEN
- Category 6-Data Submission
- Category 7-Training
- Category 8-JCAHO
- Category 9-Vendors
- Category 10-OBQM Reports
- Category 11-OBQI Reports
- Category 12-OASIS and PPS:References
OASIS-C2 Q & A's
Jan 10, 2016
OASIS-D Q & A's
Oct 15, 2018
OASIS-E-1 Q & A's
Dec 06, 2024
OASIS-E Q & A's
Nov 20, 2023
- Category 1: Applicability (PDF 109 KB) [Posted 11/20/2023]
- Category 2: Comprehensive Assessment (PDF 615 KB) [Posted 11/20/2023]
- Category 3: Follow-up Assessments (PDF 168 KB) [Posted 11/20/2023]
- Category 4: OASIS Data Set - Forms and Items (PDF 1.05 MB) [Posted 11/20/2023]
- Category 1: Applicability (PDF 112 KB) [Posted 05/20/2022]
- Category 2: Comprehensive Assessment (PDF 363 KB) [Posted 05/20/2022]
- Category 3: Follow-up Assessments (PDF 172 KB) [Posted 05/20/2022]
- Category 4: OASIS Data Set - Forms and Items (PDF 1.02 MB) [Posted 05/20/2022]
OASIS Error Messages User Guide, v2.3
Dec 16, 2024
OASIS Quarterly Q & A's
Nov 19, 2025
- October 2025 Quarterly CMS Q&As (PDF 232 KB)
- July 2025 Quarterly CMS Q&As (PDF 256 KB)
- April 2025 Quarterly CMS Q&As (PDF 215 KB)
- January 2025 Quarterly CMS Q&As (PDF 189 KB)
- October 2024 Quarterly CMS Q&A's (PDF 180 KB)
- July 2024 Quarterly CMS Q&As (PDF 200 KB)
- April 2024 Quarterly CMS Q&As (PDF 194 KB)
- January 2024 Quarterly CMS Q&As (PDF 195 KB)
- October 2023 Quarterly CMS Q&As (PDF 193 KB)
- July 2023 Quarterly CMS Q&As (PDF 197 KB)
- April 2023 Quarterly CMS Q&As (PDF 223KB)
- January 2023 Quarterly CMS Q&A's (PDF 260 KB)
- October 2022 Quarterly CMS Q&A's (PDF 247 KB)
- July 2022 Quarterly CMS Q&A's (PDF 209 KB)
- April 2022 Quarterly CMS Q&A's (PDF 194 KB)
- January 2022 Quarterly CMS Q&A's (PDF 231 KB)
- October 2021 Quarterly CMS Q&A's (PDF 244 KB)
- July 2021 Quarterly CMS Q&A's (PDF 292 KB)
- April 2021 Quarterly CMS Q&A's (PDF 267 KB)
- January 2021 Quarterly CMS Q&A's (PDF 240 KB)
- October 2020 Quarterly CMS Q&A's (PDF 254 KB)
- July 2020 Quarterly CMS Q&A's (PDF 273 KB)
- April 2020 Quarterly CMS Q&A's (PDF 278 KB)
- January 2020 Quarterly CMS Q&A's (PDF 265 KB)
- October 2019 Quarterly CMS Q&A's (PDF 307 KB)
- July 2019 Quarterly CMS Q&A's (PDF 266 KB)
- April 2019 Quarterly CMS Q&A's (PDF 358 KB)
- January 2019 Quarterly CMS Q&A's (PDF 196 KB)
- October 2018 Quarterly CMS Q&A's (PDF 152 KB)
- July 2018 Quarterly CMS Q&A's (PDF 174 KB]
- April 2018 Quarterly CMS Q&A's (PDF 247 KB)
- August 2017 Quarterly CMS Q&A's (PDF 90 KB)
- October 2016 Quarterly CMS Q&A's (PDF 483 KB)
- July 2016 Quarterly CMS Q&A's (PDF 119 KB)
- April 2016 Quarterly CMS Q&A's (PDF 110 KB)
- January 2016 Quarterly CMS Q&A's (PDF 132 KB)
- October 2015 Quarterly CMS Q&A's (PDF 103 KB)
- July 2015 Quarterly CMS Q&A's (PDF 72 KB)
- April 2015 Quarterly CMS Q&A's (PDF 120 KB)
- January 2015 Quarterly CMS Q&A's (PDF 241 KB)
- October 2014 Quarterly CMS Q&A's (PDF 135 KB)
- July 2014 Quarterly CMS Q&A's (PDF 120 KB)
- April 2014 Quarterly CMS Q&A's (PDF 182 KB)
- January 2014 Quarterly CMS Q&A's (PDF 163 KB)
- October 2013 Quarterly CMS Q&A's (PDF 94 KB)
- July 2013 Quarterly CMS Q&A's (PDF 95 KB)
- April 2013 Quarterly CMS Q&A's (PDF 180 KB)
- January 2013 Quarterly CMS Q&A's (PDF 165 KB)