Can you confirm the following statement is true? The linking variable algorithms in measure documentation only lists MBI, CCN, and Admission OR Discharge Date for a successful linkage to a claim. The statement below suggests differently. Can you clarify? "Summary: hybrid measures require six linking variables to link the QRDA file to the CMS claim. If any of the linking variables are missing, the QRDA file will not be linked to the claims, and the patient won’t be considered for the measure. The linking variables are: 1. MBI 2. DOB 3. Gender • Admission Date • Discharge Date • CCN