After a long wait, the OASIS-D data specifications have finally arrived. “The new version, V2.31.0, is effective for OASIS assessments with an M0090 Date Assessment Completed of January 1, 2020 or later,” the Centers for Medicare & Medicaid Services explains in a message to providers. “Changes in this version of the specifications are required to support the transition to the Patient-Driven Groupings Model (PDGM) and consist of the addition of two existing items to the Follow-Up assessment instrument (with corresponding revisions to the All Items instrument) and changes from required to optional data collection at certain time points for 23 items.” The specs are in the Downloads section at www.cms.gov/Medicare/Quality-Initiatives-Patient-Assessment-Instruments/OASIS/DataSpecifications.html.