COB Playbook

COB Reference Chart 2014

Regular Chronic Dialysis Began (RCBD) / First Date of Dialysis Ever (FDODE)

3 Month waiting period + 30 month COB period = date Medicare is primary

No waiting period + 30 month COB period = date Medicare is primary

Renal Chronic Dialysis Began (month and year)

January

2014

July 1

2016

October 1

2016

February

2014

August 1

2016 November 1

2016

March

2014 September 1

2016 December 1

2016

April

2014

October 1

2016

January 1

2017

May

2014 November 1

2016

February 1

2017

June

2014 December 1

2016

March 1

2017

July

2014

January 1

2017

April 1

2017

August

2014

February 1

2017

May 1

2017

September

2014

March 1

2017

June 1

2017

October

2014

April 1

2017

July 1

2017

November

2014

May 1

2017

August 1

2017

December

2014

June 1

2017 September 1

2017

For a complete Reference Chart for dates from January 2005 – December 2021 , click here