INSTANT OASIS Answers 2027
Every CMS answer to every OASIS item, in one book. INSTANT puts all the official OASIS coding guidance in one place, so you find the answer in an INSTANT and code compliantly. Updated for OASIS-E2, including the Guidance Manual and CMS Q&As.
- Approved for use during the open-book COS-C Exam
Spiral boundLies flat on your desk to support auditing and education.
Perfect boundSlides easily into your bag for in-home access.
Pre-order now. Expected to ship late December to early January.
Need it sooner? Shop the 2026 edition →
For the people who code, review, and teach OASIS
Clinicians
Confirm assessment details and apply the right coding conventions before you submit.
QA reviewers and auditors
Evaluate coding accuracy and make defensible recommendations backed by CMS guidance.
Educators and clinical managers
Build CMS-sourced training and answer your team’s questions quickly and confidently.
COS-C Exam candidates
Test confidently with a reference you know, using color-coded sections to find answers fast.
Built by OASIS educators. Trusted from the field to the audit.
The INSTANT book is my “go to” resource for completing OASIS audits. Easy to find the exact formal statements from CMS that I can include in my recommendations and insights back to the assessing clinician.
LISA · OASIS AUDITOR · DENVER, CO
I can’t keep all the OASIS coding rules straight, but I can quickly find what I need in my little brown book. It lives in the pocket of my nursing bag.
SHERRI · FIELD RN · BALTIMORE, MD
Each member of our quality department has their own INSTANT book. They use it to answer questions from our clinicians and we can trust that they are all applying with the same guidance because they are using the same resource with language from CMS.
AILEEN · KIRKLAND, WA
The INSTANT book is easy to use. When clinicians email me, I can easily find answers to questions and reference the exact CMS resource.
APRIL · CLARKS SUMMIT, PA
Everything CMS says about each item, in one place
Items run alphanumerically in color-coded sections, so you flip straight to what you need.
Table of contents, 2027 edition
See at a glance how each item is used: outcome measure, process measure, risk adjustment, Star Rating, and PDGM payment.
Page 435, 2027 edition
Item Q&As sit with the item. Topic Q&As, like therapy-only cases, have their own section.
Page 566, 2027 edition
Clarifying CMS resources supporting general item conventions, All-Payer, and CMS guidance on coding Function M and GG items.
Page 608, 2027 edition
All new in 2027: Short, visual guides walk you through which disciplines can complete OASIS, what is and isn’t a surgical wound, and how to compliantly address unplanned discharges.
Page 618, 2027 edition
Check your readiness for the COS-C Exam.
Page 620, 2027 edition
Here’s what’s new in 2027
Your reference on test day, and every day after
The COS-C Exam is open-book. You can bring any paper OASIS reference, including INSTANT. Learn where the answers live before exam day, then keep using the same book on the job.
Any hard copy OASIS reference allowed
Multiple-choice questions
Timed exam
Based only on CMS guidance
- Approved for use during the open-book COS-C Exam
- Every current CMS Q&A for every OASIS item
- Updated for OASIS-E2
Spiral boundLies flat on your desk to support auditing and education.
Perfect boundSlides easily into your bag for in-home access.
Pre-order now. Expected to ship late December to early January.
Need it sooner? Shop the 2026 edition →