Data Specifications

Final OASIS-C Data Specifications Version 2.00

A final version of the OASIS-C Data Specifications Version 2.00 is now available.  This version is a revision to the initial draft published in July, 2009.  The primary purpose of Version 2.00 is to incorporate changes associated with the OASIS-C data set that Home Health Agencies (HHAs) are required to collect in order to participate in the Medicare program.

The final OASIS-C instrument is on the OASIS-C website (see Related Links Inside CMS).

In the download section below, you will find the final OASIS-C Version 2.00 data specifications in four different formats (PDF, Excel, Access and HTML) and a three-column crosswalk document of OASIS-B1 items to OASIS-C items.  Please note that the HTML version of the OASIS-C data specifications provide sort order of submission and logical orders.

Correction 3: Data Submission Specifications Version 2.00

An initial draft version of Version 2.00 of the OASIS-C data specifications was published in July, 2009. Revision 1 contained several corrections to the original draft and was published at the beginning of August, 2009. The current version is a third revision and corrects several additional errors in the earlier versions. Please refer to BC200R3.PDF for a list of corrections that have been made. Changes are also noted in the “version notes” field of the detailed data specifications report. Changes associated with Revision 1 are designated with “[R1]” before the description of the change, while changes associated with Revision 2 are designated with “[R2]”. Changes associated with the current revision (Revision 3) are designated with “[R3]”.

ERRATA SHEET: Data Submission Specifications Version 2.00

Please include this errata sheet with the current OASIS-C Version 2.00 Data Specifications.  This document is intended to communicate the minimal changes that have been made since the posting of REVISON 3 of the OASIS-C Version 2.00 Data Specifications.  The current OASIS-C Version 2.00 Data Specifications will be updated and posted in its entirety at a future date.  See Downloads below for details on the Errata Sheet.