Section 8: Outcome and Assessment Information Set (OASIS) Introduction The assessment document that is used in the Agency incorporates the OASIS data elements and comprehensive assessment data. In order to understand this assessment, there must first be an understanding of some facts about OASIS data items or “M items”. The assessment form is comprised of both clinical assessment information as well as “M items”. These become the “Comprehensive Assessment”. The OASIS items alone do not include all the assessment information that is needed in order to adequately describe the condition of the patient/client. The forms provided by the Agency also provide a section on the assessments to document the skilled care provided on that visit. It is important, in order to be compliant with the regulations, that no additional nurse’s note is used with the OASIS form. OASIS • Outcome and Assessment Information Set or OASIS. • Designed to measure home health patient/client care outcomes. • Measures changes in a patient’s/client’s condition between two time points. • Quality of care is measured by patient/client outcomes. • Patient/client risk factors are taken into consideration. Data Collection OASIS data must be collected on the following patients/clients in a Medicare certified agency: • Patients/clients 18 years or older (collect on a private insurance patient/client but do not transmit at this time) • Non-maternity patients/clients • Excludes patients/clients receiving only homemaker or chore services • What are the time frames required for collection, data entry, and submission to CMS national data base? Data is collected at specific points in the course of treatment. All of these assessments, with the exception of transfer to inpatient facility and death at home, require the clinician to have an in-person encounter with the patient/client during a home visit. • Start of Care (SOC) – Patient/client must be seen within 48 hours of referral and the assessment must be completed within five days with SOC date as day “0”. • Resumption of Care (ROC) – Resume care after a qualifying inpatient stay of more than 24 hours. Complete the ROC assessment within 48 hours of return home, the Agency’s notification of return home, or the actual ordered ROC date.
