CMS is requesting approval by the Office of Management and Budget (OMB) for an Outcome and Assessment Information Set (OASIS) data set to accommodate the International Classification of Diseases (ICD)-10. The newest version of the OASIS is referred to as the OASIS C1/ICD-10 data item set.
The OASIS-C1 data item set could not be implemented on October 1, 2014 due to the Protecting Access to Medicare Act of 2014 (PAMA) being enacted. PAMA prohibited the Secretary from adopting ICD-10 prior to October 1, 2015. Since ICD-10 had been delayed until October 1, 2015, CMS made interim changes to the OASIS-C1 data item set to accommodate the continuation of the ICD-9 diagnosis codes. Five of the data items which used ICD-10 codes were modified. The current version of the data item set for OASIS-C1/ICD-9 is still in use until the implementation of ICD-10.
The OASIS C-1/ICD-10 version replaces the five items that were modified in the OASIS C1/ICD-9 version. OASIS C-1/ICD-10 is “essentially the OASIS C1 with a few technical and typographic corrections and a new name.”
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