Quarterly Addenda Updates

Quarterly Addenda Updates

Updates of Addendum A and B are posted quarterly to the OPPS website. These addenda are a "snapshot" of HCPCS codes and their status indicators, APC groups, and OPPS payment rates, that are in effect at the beginning of each quarter. The quarterly updates of Addendum A and Addendum B reflect the OPPS Pricer changes that are part of the quarterly OPPS recurring update notification transmittals.

Additionally, other quarterly addenda updates, such as Addendum Q, are provided below.

Release Date Subject Year
Addendum A
2025
Addendum B
2025
Addendum Q
2025
Addendum A
2024
Addendum B
2024
Addendum A
2024
Addendum B
2024
Addendum A
2024
Addendum B
2024
Addendum A
2024
Addendum B
2024
Addendum B
2023
Addendum A
2023
Addendum B
2023
Addendum A
2023
Addendum A
2023
Addendum B
2023
October 2023
Addendum A
2023
October 2023
Addendum B
2023
Addendum A
2022
Addendum B
2022
Addendum A
2022
Addendum B
2022
July 2022
Addendum A
2022
July 2022
Addendum B
2022
Addendum A
2022
Addendum B
2022
January 2021
Addendum B
2021
January 2021
Addendum A
2021
Addendum A
2021
Addendum B
2021
April 2021
Addendum A
2021
April 2021
Addendum B
2021
July 2021
Addendum A
2021
July 2021
Addendum B
2021
October 2021
Addendum A
2021
October 2021
Addendum B
2021
Addendum A
2021
Addendum B
2021
January 2020
Addendum B
2020
January 2020
Addendum A
2020
Addendum A
2020
Addendum B
2020
April 2020
Addendum A
2020
April 2020
Addendum B
2020
April 2020 CORRECTION
Addendum B
2020
July 2020
Addendum A
2020
July 2020
Addendum B
2020
July 2020 CORRECTION
Addendum A
2020
July 2020 CORRECTION
Addendum B
2020
October 2020
Addendum A
2020
October 2020
Addendum B
2020
Addendum A
2020
Addendum B
2020
January 2019
Addendum A
2019
January 2019
Addendum B
2019
April 2019
Addendum A
2019
April 2019
Addendum B
2019
July 2019
Addendum B
2019
July 2019
Addendum A
2019
October 2019
Addendum A
2019
October 2019
Addendum B
2019
Addendum B
2019
Addendum A
2019
January 2018
Addendum B
2018
January 2018
Addendum A
2018
April 2018
Addendum A
2018
April 2018
Addendum B
2018
July 2018
Addendum B
2018
July 2018
Addendum A
2018
October 2018
Addendum B
2018
October 2018
Addendum A
2018
January 2017
Addendum B
2017
January 2017
Addendum A
2017
April 2017
Addendum B
2017
April 2017
Addendum A
2017
July 2017
Addendum A
2017
July 2017
Addendum B
2017
October 2017
Addendum A
2017
October 2017
Addendum B
2017
January 2016
Addendum B
2016
January 2016
Addendum A
2016
April 2016
Addendum B
2016
April 2016
Addendum A
2016
July 2016
Addendum B
2016
July 2016
Addendum A
2016
October 2016
Addendum B
2016
October 2016
Addendum A
2016
January 2015
Addendum A
2015
January 2015
Addendum B
2015
April 2015
Addendum A
2015
April 2015
Addendum B
2015
July 2015
Addendum A
2015
July 2015
Addendum B
2015
October 2015
Addendum B
2015
October 2015
Addendum A
2015
January 2014
Addendum B
2014
January 2014
Addendum A
2014
April 2014
Addendum B
2014
April 2014
Addendum A
2014
July 2014
Addendum A
2014
July 2014
Addendum B
2014
October 2014
Addendum A
2014
October 2014
Addendum B
2014
January 2013
Addendum A
2013
January 2013
Addendum B
2013
April 2013
Addendum B
2013
April 2013
Addendum A
2013
July 2013
Addendum A
2013
July 2013
Addendum B
2013
October 2013
Addendum A
2013
October 2013
Addendum B
2013
January 2012
Addendum B
2012
January 2012
Addendum A
2012
April 2012
Addendum B
2012
April 2012
Addendum A
2012
July 2012
Addendum B
2012
July 2012
Addendum A
2012
October 2012
Addendum B
2012
October 2012
Addendum A
2012
January 2011
Addendum A
2011
January 2011
Addendum B
2011
October 2011
Addendum A
2011
July 2011
Addendum B
2011
July 2011
Addendum A
2011
April 2011
Addendum A
2011
April 2011
Addendum B
2011
October 2011
Addendum B
2011
05/18/2010
Revised April 2010 Update to reflect Affordable Care Act 05/18/2010- Addendum A
2010
January 2010
Addendum B
2010
July 2010
Addendum B
2010
05/18/2010
Revised January 2010 Update to reflect Affordable Care Act 05/18/2010- Addendum B
2010
October 2010
Addendum B
2010
January 2010
Addendum A
2010
05/18/2010
Revised January 2010 Update to reflect Affordable Care Act 05/18/2010- Addendum A
2010
05/18/2010
Revised April 2010 Update to reflect Affordable Care Act 05/18/2010- Addendum B
2010
October 2010
Addendum A
2010
July 2010
Addendum A
2010
October 2009
OPPS Update CR6626
2009
January 2009
Addendum B
2009
April 2009
Addendum A
2009
July 2009
OPPS Update CR6492
2009
July 2009
Addendum A
2009
January 2009
OPPS Update CR6320
2009
July 2009
Addendum B
2009
January 2009
Addendum A
2009
October 2009
Addendum B
2009
October 2009
Addendum A
2009
April 2009
OPPS Update CR6416
2009
April 2009
Addendum B
2009
January 2008
Addendum A
2008
July 2008
Addendum A
2008
January 2008
OPPS Update CR5912
2008
July 2008
Addendum B
2008
April 2008
Addendum A
2008
January 2008
Addendum A
2008
July 2008
OPPS Update CR6094
2008
January 2008
Addendum B
2008
October 2008
OPPS Update CR6196
2008
October 2008
Addendum A
2008
October 2008
Addendum B
2008
January 2008
Addendum B
2008
April 2008
Addendum B
2008
July 2007
Addendum A
2007
January 2007
OPPS Update, CR5438
2007
January 2007
Addendum A
2007
January 2007
Addendum B
2007
April 2007
OPPS Update CR5544
2007
April 2007
Addendum A
2007
October 2007
OPPS Update CR5304
2007
October 2007
Addendum A
2007
October 2007
Addendum B
2007
April 2007
Addendum B
2007
July 2007
OPPS update, CR5623
2007
July 2007
Addendum B
2007
April 2006
Addendum A
2006
April 2006
Addendum B
2006
October 2006
Addendum A
2006
October 2006
Addendum B
2006
January 2006
Addendum A
2006
January 2006
OPPS Update, CR4250 (Transmittal 804)
2006
July 2006
Addendum A
2006
July 2006
OPPS Update, CR5121
2006
January 2006
Addendum B
2006
April 2006
OPPS update, CR5011 (Transmittal 896)
2006
July 2006
Addendum B
2006
October 2006
OPPS Update CR5304
2006
October 2005
OPPS update, CR4035
2005
July 2005
Addendum B
2005
April 2005
Addendum A
2005
April 2005
Table 4b
2005
October 2005
Addendum A
2005
April 2005
Addendum B
2005
July 2005
OPPS update, CR3915
2005
April 2005
OPPS update, CR3756
2005
April 2005
Additions and Corrections to CMS-1427-FC Addendum B Payment Rates
2005
October 2005
Addendum B
2005
July 2005
Addendum A
2005
April 2004
OPPS update, CR3144
2004
April 2004
OPPS update, CR3154
2004
October 2004
Addendum B
2004
October 2004
OPPS update, CR3420
2004
July 2004
Addendum B
2004
July 2004
OPPS update, CR3324
2004
July 2004
Addendum A
2004
July 2004
OPPS update, CR3322
2004
October 2004
Addendum A
2004
April 2004
OPPS release
2004
April 2004
OPPS update, CR3145
2004
Page Last Modified:
01/02/2025 01:27 PM