Updated research request forms and data security approval requirement effective 4/24/23
SAS Name
EL_MDCR_ANN_XOVR_OLD
From the 2005 MAX PS Data Dictionary from CMS: CODE INDICATING THAT THE ELIGIBLE IS COVERED BY MEDICARE (KNOWN AS CROSSOVER, DUAL OR MEDICARE ELIGIBILITY), ACCORDING TO MEDICAID (MSIS), MEDICARE NEW VALUES (EDB) OR BOTH.
Note from the 2006 MAX PS Data Dictionary from CMS: Changed MEDICARE CROSSOVER CODE to MEDICARE DUAL CODE.
This code will be populated in data file years through 2004. This variable will be blank for years 2005 forward. For years 2005 forward see "Medicare dual code (Annual).
USER NOTE: THE ANNUAL DUAL CODE IS EQUAL TO THE LATEST (MOST RECENT) QUARTERLY DUAL CODE > '00' (BEGINNING WITH THE LAST QUARTER AND MOVING BACKWARDS IN TIME QUARTER BY QUARTER). IF NONE OF THE QUARTERS HAVE DUAL CODE > '00', THE ANNUAL DUAL CODE IS SET TO '00'. IF THE PERSON IS ELIGIBLE FOR MEDICAID AND ENROLLED IN THE EDB IN AT LEAST ONE MONTH OF THE YEAR, A '5' IS MOVED TO THE FIRST POSITION (I.E. VALUES 50-59). IF THE PERSON HAS CLAIMS BUT NO ELIGIBILITY RECORD, THE ANNUAL DUAL CODE IS SET TO '99'.