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OASIS Data Collection, Accuracy, and Transmission

Collects the OASIS items as part of every comprehensive assessment; makes sure the data accurately reflect the patient’s status; and, if the Agency is Medicare-certified, encodes and transmits each completed OASIS assessment to the CMS system within 30 days of completing the assessment, for every patient CMS requires (since July 1, 2025, patients of any payer who are not exempt), using compliant software, secure transmission and the CMS branch identification number, while keeping patient-identifiable OASIS information confidential.

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About this policy
Policy number
OH-HH-ASM-02
Version
1.0
Main rule
42 CFR §484.45
Library
Ohio home health · 59 policies
Category
Patient care
Sections
19

In short

  • Answer every OASIS item from your own assessment at the visit, following the OASIS manual.
  • OASIS is collected for patients of every payer unless CMS exempts them.
  • Make sure your OASIS answers match the rest of your notes. Only the assessing clinician changes an answer.
  • Each completed OASIS is sent to CMS within 30 days of completing the assessment.
  • Keep OASIS information confidential and report any pressure to change answers.

What's inside

19 sections. The full text comes with the One-time Policy Pack.

Full text with a package
  • Terms of Reference
  • 1. Purpose
  • 2. Scope
  • 3. Definitions
  • 4. Policy Statement (42 CFR §484.45)
  • 5. Which Patients and Time Points
  • 6. Collecting OASIS Data
  • 7. Clinical Review Before Submission
  • 8. Encoding and Transmission
  • 9. Correcting OASIS Records After Submission
  • 10. Protecting OASIS Information
  • 11. Quality of OASIS Data
  • 12. Responsibilities
  • 13. Records and Compliance Monitoring
  • 14. Staff Training
  • 15. References
  • 16. Related Policies and Forms
  • 17. Approval
  • 18. Revision History

An inspector may ask

  • Show me the OASIS for this patient and when it was transmitted to CMS.
  • How do you make sure the OASIS answers match the clinical documentation?

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