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Applying the Medicare COB Formulas
•
COB is 30 months ( **hint** 30 months = 2 years + 6 months)
•
COB period is in addition to the 3-month waiting period, if
applicable
•
Based off the ESRD entitlement date (i.e. 30 months begin on
that date)
•
Retro entitlement to the first of the month (RCDB/FDODE 1/17,
retro to 1/1)
(RCDB/FDODE) ___________
+ Waiting Period___________
Add + 2 years___________
Add + 6 months___________
(retro back to the 1st of the month)
= Medicare Entitlement due to ESRD
= Medicare Primary date
03/16/2012
3 months
06/01/2012
06/01/2012
06/01/2014
12/01/2014
12/01/2014
COB End
Date is
11/30/2014
Example is an in-center hemodialysis patient with no training or
transplant during waiting period; not previously dialyzed in lifetime