OASIS-E1 Final Guidance Manual Released: Key Changes and Implementation Timeline for January 2025

On December 16th, the final version of the OASIS-E1 Final Guidance Manual was released, outlining significant changes that will take effect starting January 2025. This update marks a crucial step in the evolution of OASIS data collection, impacting home health agencies across the country.

Key Changes:

Item Updates:

  • One new item has been added to the OASIS assessment.
  • Two items have been removed due to their limited relevance in OASIS calculations.
  • Three existing items have undergone revisions.
  • The skip pattern for M0102 has been updated.

Manual Revisions:

  • Minor revisions were made to Chapter 1 of the manual, including the addition of a paragraph from the OASIS Q&A and an example involving a Medicaid-certified Pediatric Home Health Agency.
  • Section 1.5.1.1 was updated to include information about All-Payer OASIS.
  • Examples from the OASIS Q&A were added to address scenarios involving pediatric patients who transition to adulthood.

OASIS-E1 Implementation Timeline:

  • January 1, 2025: OASIS completion for all patients, regardless of payer, becomes voluntary.
  • July 1, 2025: OASIS completion for all patients, regardless of payer, becomes mandatory.

Important Considerations:

  • OASIS is not required for all patients. Patients receiving only home health aide services, non-skilled home health aide services, or homemaker services are exempt from OASIS collection.
  • This requirement applies to all patients seen under your Medicare-certified agency, regardless of their payer source (e.g., private pay, workers’ compensation).

Preparing for OASIS-E1:
To ensure your agency is fully prepared for the upcoming changes, it is highly recommended to begin preparations by March 2025. This proactive approach will allow your staff ample time to:

  • Review the updated OASIS-E1 Final Guidance Manual thoroughly.
  • Train staff on the new items, revisions, and skip patterns.
  • Update internal procedures and workflows to accommodate the new requirements.
  • Test your electronic health record (EHR) system for compatibility with the OASIS-E1 changes.
  • Address any potential challenges and implement necessary adjustments.


By proactively addressing these changes, home health agencies can ensure compliance with the new OASIS-E1 requirements, maintain accurate data collection, and continue to provide high-quality care to their patients.

Disclaimer: This blog post is for informational purposes only and should not be considered legal or professional advice. Please consult the official OASIS-E1 Final Guidance Manual and seek guidance from relevant experts for specific questions and guidance related to your agency’s unique circumstances.

Hi, I’m Josie! I’m the Vice President of Operations at CodingDepartment.com. I’ve been a coder for over 30 years. My job is to keep my team up-to-date on Medicare’s everchanging Home Health rules and regulations. And I hope my blog can help you too.
Josie Hill, HCS-D
Vice President of Operations

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