Revolutionizing data collection

Historically, the manual paper-based procedure of data submission has forced CMS to calculate CPMs using only 5%-8% of dialysis patients from randomly sampled facilities as representative of the entire ESRD provider community.

Additionally, a number of the CPMs were based on ESRD claims data, which meant that the calculated measures were limited to Medicare patients and, for the anemia measures, to Medicare patients who received erythropoietin. The entire process of patient data accumulation and analysis delayed CMS’ CPM reporting abilities up to 24 months from the initial receipt of submitted data.

With the launch of CROWNWeb, electronic data submission will allow 100% of the ESRD population to be included in the CPM measurement. The transition to CROWNWeb will also allow CMS to move away from relying on claims data for the collection of quality data and enable reporting of more current and accurate information.


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Reporting speed will be greatly enhanced under CROWNWeb. The collection of key elements using the calculations available in the CROWNWeb first release will allow CMS to provide CPM data within approximately 90 days from the end of the collection cycle.

As an example, CROWNWeb will enhance the CPM reporting process for hemodialysis adequacy in a number of ways, including:

  • Allowing facilities to directly input into CROWNWeb a clearance value (Kt/V) that satisfies the requirement for a standard measurement for this CPM.
  • Automatically polling other data fields, assessing the contents of the fields, and recognizing that the facility has provided enough data to calculate a measurement (for example, urea reduction ratio, pre- and post-blood urea nitrogen (BUN) time and modality of dialysis, etc.).
  • Allowing facilities to set a default method of measurement for “Method of Measurement of Delivered Hemodialysis Dose” to accommodate their contracted lab’s calculation method and to have this choice “remembered” for future entries.
  • Allowing facilities to manually override the default selection for the selected measurement method at any time.
  • Reading the calculated Kt/V for each patient.