COB Playbook

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)

Example is an in-center hemodialysis patient with no training or transplant during waiting period; not previously dialyzed in lifetime

(RCDB/FDODE) ___________ + Waiting Period___________

03/16/2012 3 months 06/01/2012 06/01/2012 06/01/2014 12/01/2014 12/01/2014

(retro back to the 1st of the month) = Medicare Entitlement due to ESRD

Add + 2 years___________ Add + 6 months___________

= Medicare Primary date

COB End Date is 11/30/2014