New Chronic Conditions File Added to the Master Beneficiary Summary File

CMS is pleased to announce the addition of the new 30 CCW Chronic Conditions file, for data years 2017-2020.

CMS worked in conjunction with a subject matter expert panel to validate and refine the current 27 CCW Chronic Conditions algorithms to create a new set of 30 CCW Chronic Conditions.

The current 27 CCW Chronic Conditions file is still available through the current data year, 2020. The last data year for this file will be 2021.

 

What specific changes can I expect with the new set of 30 CCW Chronic Conditions?

  • Modified look-back periods, qualifying claims, and codes
  • Three new condition algorithms: 1) Urologic Cancer (Kidney, Renal Pelvis and Ureter), 2) All Cause Pneumonia, and 3) Parkinson's Disease and Secondary Parkinsonism
  • Removal of mid-year indicators

The codebook and record layout for the new 30 CCW Chronic Conditions file are on the Data Dictionaries page of the CCW website.

More information about the condition algorithms is on the Chronic Conditions page of the CCW website. The Chronic Conditions File Enhancements white paper contains detailed comparisons between the two sets of algorithms and guidance for researchers.