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URSA-HCC-R03: Registry of Missing CMS-HCC Model Outputs

  • Published on Nov 4, 2026
  • 5 minute(s) read
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Measure Description

Registry of CMS-HCC model outputs present in prior years, under the Historical-Diagnoses scenario, but missing in current year, under the Within-Year-Updated scenario; for both versions 24 and 28. Restricting to a snapshot date gives a grain size of one record per instance of a v24 or v28 missing model output as of that snapshot date.

Metadata

  • Measure Identifier: URSA-HCC-R03
  • Measure Type: Registry
  • Temporal Structure: Entity
  • Component Class: Normal-Form
  • Case Fields: Patient ID, CMS-HCC Missing Output Code and Description, Is Model v28 Output
  • Observation Fields: Patient ID, CMS-HCC Missing Output Code and Description, Is Model v28 Output, Snapshot Date [, snapshot_date]
  • Target Direction: None

Published Fields

  • Data Model Keys

    • Patient ID -- The internal database identifier (used, e.g., for joins and primary keys) for the patient. This value is typically mastered, i.e., all records for the same patient, regardless of the source data system from which that record originated, should have the same Patient ID value. (Note that while the mastered Patient ID value might resemble a local identifier used in one of the upstream data sources, this does not indicate any special priority of that source system in determining the characteristics of the patient.) (See also [URSA-CORE] Patient)

  • Date Fields

    • Snapshot Date -- The date, evaluated at 00:00:00 AM, giving the moment the state of the world will be set to for the purposes of an analysis. The snapshot date does not represent the freshness of the data, or the date in real time at which an analysis was executed.
    • Segment Start Date -- The start date of the reporting segment. (See also [URSA-CORE] Reporting Segment)
    • Segment End Date -- The end date of the reporting segment. (See also [URSA-CORE] Reporting Segment)

  • Module Fields

    • CMS-HCC Missing Output Code
    • CMS-HCC Model Version
    • Is Model v28 Output -- Indicates the record contains information on a model output produced by the CMS-HCC v28 model. (See also [URSA-HCC] CMS-HCC Model Outputs)
    • CMS-HCC Missing Output Code and Description -- The code (e.g., "HCC110") and description (e.g., "Cystic Fibrosis") of a CMS-HCC model output that was, as of a reference date or period, produced by the CMS-HCC model run under the Historical-Diagnoses scenario but not produced under the Within-Year-Updated scenario.
    • CMS-HCC Missing Output Raw RAF Score Contribution -- The raw (i.e., pre-normalization) contribution to the RAF score of the model output listed in the CMS-HCC Missing Output Code and Description field. Useful for ranking the missing diagnoses for a cohort of patients in order to direct an operational team's attention to the most important omissions. Note that the raw score might be meaningfully different from the final effective contribution of any given model output after normalization, and that, e.g., the normalized overall RAF score for the patient might actually be lower than any individual output's raw contribution. (See also [URSA-HCC] CMS-HCC Missing Output Code and Description)
    • Is Ursa Chronic vs. Not Chronic Type Primarily Chronic
    • Is Ursa Chronic vs. Not Chronic Type Primarily Not Chronic
    • Is Ursa Chronic vs. Not Chronic Type Mixed Chronic and Not Chronic
    • Historical-Diagnoses CMS-HCC RAF Score -- The normalized CMS-HCC RAF score calculated under the Historical-Diagnoses scenario, blending different versions of the model (v24 vs. v28) as appropriate. (See also [URSA-HCC] Historical-Diagnoses CMS-HCC Scenario)
    • Within-Year-Updated CMS-HCC RAF Score -- The normalized CMS-HCC RAF score calculated under the Within-Year-Updated scenario, blending different versions of the model (v24 vs. v28) as appropriate. (See also [URSA-HCC] Within-Year-Updated CMS-HCC Scenario)
    • Historical-Diagnoses CMS-HCC Disease Component RAF Score -- The disease component contribution to the normalized CMS-HCC RAF score, calculated under the Historical-Diagnoses scenario, blending different versions of the model (v24 vs. v28) as appropriate. (See also [URSA-HCC] Historical-Diagnoses CMS-HCC Scenario)
    • Within-Year-Updated CMS-HCC Disease Component RAF Score -- The disease component contribution to the normalized CMS-HCC RAF score, calculated under the Within-Year-Updated scenario, blending different versions of the model (v24 vs. v28) as appropriate. (See also [URSA-HCC] Within-Year-Updated CMS-HCC Scenario)
    • Historical-Diagnoses vs. Within-Year-Updated CMS-HCC RAF Score Gap -- The difference between the CMS-HCC RAF score calculated under the Historical-Diagnoses scenario and the Within-Year-Updated scenario; represents a theoretical increase to RAF score if all qualifying historical diagnoses had been redocumented in the reference calendar year. (See also [URSA-HCC] Historical-Diagnoses CMS-HCC Scenario, [URSA-HCC] Within-Year-Updated CMS-HCC Scenario)
    • Historical-Diagnoses CMS-HCC v28 All Outputs Summary -- A semicolon-delimited list of the CMS-HCC model outputs, including both the code and natural language description for each, produced by the CMS-HCC v28 model run under the Historical-Diagnoses scenario. (See also [URSA-HCC] CMS-HCC Model Outputs, [URSA-HCC] Historical-Diagnoses CMS-HCC Scenario)
    • Within-Year-Updated CMS-HCC v28 All Outputs Summary -- A semicolon-delimited list of the CMS-HCC model outputs, including both the code and natural language description for each, produced by the CMS-HCC v28 model run under the Within-Year-Updated scenario. (See also [URSA-HCC] CMS-HCC Model Outputs, [URSA-HCC] Within-Year-Updated CMS-HCC Scenario)
    • Count Historical-Diagnoses CMS-HCC v28 Outputs Missing from Within-Year-Updated Outputs -- A count of all distinct outputs produced by the CMS-HCC v28 model run under the Historical-Diagnoses scenario that are not produced by the same model run under the Within-Year-Updated scenario. In effect, this is the count of model outputs (HCCs, primarily) that are, as of the reference date, "missing" from the patient's RAF score because some diagnoses have not been documented at that point in the reference year. (See also [URSA-HCC] CMS-HCC Model Outputs, [URSA-HCC] Historical-Diagnoses CMS-HCC Scenario, [URSA-HCC] Within-Year-Updated CMS-HCC Scenario)
    • Historical-Diagnoses CMS-HCC v28 Outputs Missing from Within-Year-Updated Outputs Summary -- A semicolon-delimited list of the CMS-HCC model outputs, including both the code and natural language description for each, produced by the CMS-HCC v28 model run under the Historical-Diagnoses scenario that are not produced by the same model run under the Within-Year-Updated scenario. In effect, this is the list of model outputs (HCCs, primarily) that are, as of the reference date, "missing" from the patient's RAF score because some diagnoses have not been documented at that point in the reference year. (See also [URSA-HCC] CMS-HCC Model Outputs, [URSA-HCC] Historical-Diagnoses CMS-HCC Scenario, [URSA-HCC] Within-Year-Updated CMS-HCC Scenario)
    • Ursa HCC Chronic vs. Not Chronic Type Description
    • Historical-Diagnoses CMS-HCC v28 Raw RAF Score
    • Within-Year-Updated CMS-HCC v28 Raw RAF Score

  • Measure Fields