Home Health Agencies (HHAs): OASIS Information

This webpage provides resources and information pertaining to the Outcome and Assessment Information Set (OASIS) that is required to be completed by Medicare certified home health agencies (HHAs) for skilled, adult, non-maternity, Medicare and/or Medicaid patients.

Wisconsin OASIS Contacts

Chris Benesh, OASIS Automation Coordinator

  • Provides OASIS technical support

Mary Jo Sutton, OASIS Education Coordinator

  • Provides OASIS content guidance (interpretation and intended use)

General OASIS Information

Coding HIV or STD Diagnosis

There is no Wisconsin state law prohibiting reporting of HIV or STD diagnosis codes. Effective with the implementation of the OASIS C1-ICD-10 dataset on October 1, 2015, home health agencies should code HIV and STD diagnosis codes for appropriate patients.

Education and

CMS OASIS-D related Webinars

The Centers for Medicare & Medicaid Services (CMS) will be hosting two webinars to introduce home health providers to changes to the OASIS-D related to the Home Health Quality Reporting Program (QRP) that are scheduled to become effective on January 1, 2019. The two webinars are scheduled for Tuesday, August 28, and Wednesday, September 5, 2018. Registration is required and is limited to 1,500 attendees per event on a first-come, first-serve basis. See the Home Health Quality Reporting Training webpage for details.

WI OASIS Educational Forum

DQA sponsors a quarterly educational venue to assist Wisconsin HHAs to keep current with evolving OASIS information.

Each OASIS Educational Forum will be conducted over the internet utilizing the Adobe Connect Meeting software. Adobe Connect Meeting is web-conferencing software that allows users to connect to live meetings/presentations over the internet.

Next OASIS Educational Forum: April 16, 2019, starting at 1 pm.

It is highly recommended that you test your computer for connection compatibility prior to the day of the Forum by going to https://connect.wisconsin.gov/common/help/en/support/meeting_test.htm

Listed below are the OASIS Educational Forum recordings for the past two year's:

CMS OASIS-C Training Modules

CMS has developed 16 online modules to assist HHA staff to accurately complete OASIS-C assessment questions. These modules include conventions for accuracy, and cover each of the OASIS-C domains. Guidance includes item intent, time points for completion, response-specific instructions, data sources, and resources.

Each module has an accompanying set of PowerPoint slides that should be printed and available to the user prior to beginning each module. The modules are available on the CMS Surveyor Training OASIS website.

CMS YouTube Training Videos

These training videos were developed prior to the OASIS-C Training Modules noted above.

Other Educational Resources

The CMS Introduction to OASIS-C presented at the October, 2009 National Association of Home Care and Hospice's (NAHC) convention (four presentations and slides).


Regulatory Resources


Technical Assistance

Important: Do not include personally identifiable information in emails. If you have a question about an error on a Final Validation Report, please contact Chris Benesh with the Submission ID and the Record Number of the OASIS record with the error. Do not ever attached a copy of a Final Validation Report to an email.

Data Specifications

OASIS Data Specifications

QIES Technical Support Office (QTSO)

The QTSO website provides information and resources for CMS applications/programs including the following OASIS information:

OASIS Correction Policy

OASIS Correction Policy for HHAs – CMS S&C: 15-18-HHA, January 9, 2015

OASIS Assessment Deletion Request

Refer to the OASIS Correction Policy for HHAs (above) for information on when to request a deletion of an OASIS record. Email Chris Benesh to obtain the required CMS form that must be completed to request a removal of a previously submitted and accepted OASIS record.

OASIS Data Specifications

OASIS records submitted to the CMS ASAP System must meet required specifications which are available on the CMS OASIS Data Specifications webpage.

User IDs/Passwords Required

In order to submit OASIS records and/or access CASPER reports, users must have both a CMSNet (Verizon) User ID and a OASIS Individual Login ID to submit OASIS records/and or to access CASPER reports. Both of these IDs and passwords are assigned to an individual and should not be shared. HHAs seeking initial Medicare certification should contact Chris Benesh for information for submitting a test OASIS submission. New HHA users should follow these steps to obtain the required accounts:

Step 1:

Use the CMSNet Online Registration application to request a CMSNet User ID.
The CMSNet ID is needed to access secure CMS sites (e.g., submissions pages/reports) unless an otherwise secure connection has been established.

CMSNet Online Registration Instructions

Step 2:

Use the QIES online User Registration tool to obtain a QIES Submission ID. Once you have registered for a CMSNet User ID, you will receive an email from MDCN.mco@palmettogba.com containing your login information. Using this information you will connect through the CMS Secure Access Service.

Once securely connected, select the 'CMS QIES Systems for Providers' link to access the QIES online 'User Registration' tool. New users must utilize the online 'User Registration' tool to obtain a QIES Submission/OASIS Individual login ID.  There is a separate process for Corporate/Third-Party accounts.

Additional information is available on the QTSO OASIS Access Information webpage.

OASIS Individual User Login ID Requirement

Each HHA and each of their respective branch locations are allowed two individuals with QIES/OASIS Individual User IDs to submit OASIS assessment information and view CASPER reports. It is the agency's responsibility to revoke access for any users who no longer require access to this data. Revoking the account of a user who no longer requires access permits the agency to request a personal login ID for an additional user. Use the OASIS Individual User Account Maintenance Request to remove all access from an existing OASIS user.

OASIS Individual Login Passwords

A user selects their own personal login password when they register for an OASIS Individual User ID. The password must meet stringent password rules that are available to view on the password web page. Passwords are set to expire in 60 days. Users must enter a new password when they are prompted to change their password or they may use the QIES User Maintenance application that is available on the OASIS Welcome Page to change their password at any time prior to the 60 day expiration date.

Forgot OASIS Individual Login Password and Inactivated Accounts

If an incorrect OASIS Individual Login password is entered too many times the account will be made inactive. If the user does not log into CASPER reports within 60 days, their account will also be made inactive. Inactive accounts will not be able to submit OASIS assessments.

One indication of an inactive account or an expired password: after attempting to login the following message appears, "Authorization Required," indicating the server can't verify the appropriate access credentials.

To reactivate an OASIS personal account, follow these steps:

  1. On the State OASIS Welcome page select the QIES User Maintenance link.
  2. Select "Forgot your password or Inactive Account?"
  3. Enter your Personal Login ID and answer the three security questions and follow the directions provided.

Providing answers to the security questions were part of the process for registering for an individual OASIS account. Users will have three attempts to correctly answer the security questions, after that, they are locked out and must contact the QIES Help Desk to reset their account, 800-339-9313.

To avoid getting locked out be sure to log into CASPER or the QIES User Maintenance application at least once every 60 days.


Quality Measures: Outcome, Process, and Potentially Avoidable Events

OASIS Quality Improvement Reports – Summary of Changes in CASPER Effective February 5, 2018 (PDF)

Last Revised: April 4, 2019