Changes to Submitting Non-proportion Measures in Year 2
Developer Group for QPP APIs
CMS is making changes to the non-proportion metric type for Year 2 submissions. Non-proportion measurements are applicable to quality measures. They are exclusively authored by QCDRs and are used to attest to measures that are otherwise categorized as 'ratio', 'continuous variable', or a combination of 'proportion' and the former.
The Year 1 non-proportion metric schema in the Submissions API did not support non-proportion measure benchmarking. Therefore, these measures could only receive a score of 3. This change to the non-proportion metric type enables scoring of non-proportion measures using performance year benchmarks. This will increase the amount of points available to be earned for non-proportion measures.
This update also allows for successful submission of quality measures: Average Change in Back Pain following Lumbar Discectomy / Laminotomy (measure ID 459), Average Change in Back Pain following Lumbar Fusion (measure ID 460), and Average Change in Leg Pain following Lumbar Discectomy and/or Laminotomy (measure ID 461).
In Year 1, the "nonProportion" measure schema for the Submissions API looked like:
{
"id": string,
"measurementSetId": string,
"measureId": string,
"value": {
"numerator": float,
"denominator": float,
"isEndToEndReported": boolean,
"denominatorException": float,
"numeratorExclusion": float
}
}
In Year 2, we are adding one field to capture data completeness. Adding data completeness to the captured information about the measure will enable scoring non-proportion measures against a benchmark. In the Submissions API, this is referred to as "reportingRate":
{
"id": string,
"measurementSetId": string,
"measureId": string,
"value": {
"numerator": float,
"denominator": float,
"isEndToEndReported": boolean,
"denominatorException": float,
"numeratorExclusion": float,
"reportingRate": float
}
}
Please see the attached document for more information about the update to the non-proportion metric type, including reporting examples.
If you have any questions about this change, please contact the Quality Payment Program at Q...@cms.hhs.gov or 1-866-288-8292 (TTY: 1-877-715-6222).
abhijeet mahajan
Sarah White
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