URSA-PHF-028: SNF LOS in Midnights per 1000 Member-Years
  • 28 Jun 2025
  • 2 Minutes to read
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URSA-PHF-028: SNF LOS in Midnights per 1000 Member-Years

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Article summary

Measure Description

Among active membership periods, the rate of SNF stay length of stay in elapsed midnights per 1000 member-years.

Metadata

  • Measure Type: Rate Measure
  • Temporal Structure: Interval
  • Component Class: Long-Form
  • Denominator Case Field: Patient ID
  • Target Direction: Down

Denominator Description

The elapsed patient-months among active membership periods during which the patient was alive and had medical claims data coverage, expressed in units of 1000s of patient-years.

Numerator Description

The number of midnights elapsed between admission and discharge of a SNF stay falling within the denominator period; NB: a single admission straddling multiple reporting periods will contribute (partial, prorated) LOS to each of those reporting periods.

Published Fields

  • Data Model Keys

    • Patient ID
    • Primary Payor ID
    • Primary Plan ID
  • Patient Fields

    • Patient Last Name
    • Patient Date of Birth
    • Patient Age Integer
    • Patient Age Category Tier 1
    • Patient Age Category Tier 2
    • Patient Sex Category
    • Is Patient Sex Female
    • Is Patient Sex Male
    • Count Hospital Inpatient Admissions in Last 12 Months
    • Count ED Visits Without Inpatient Admissions in Last 12 Months
    • PCP Attribution Category
    • Primary Care Engagement Category
    • Count Primary Care Visits in Last 36 Months
    • Specialty Care Engagement Category
    • Count Specialty Care Office Visits in Last 36 Months
    • Primary or Specialty Care Engagement Category
    • Count Clinician Office Visits in Last 3 Years
  • Date Fields

    • Current Continuous Primary Payor Membership Episode Start Date
    • Current Continuous Primary Payor Membership Episode End Date
    • 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)
    • Segmented Period Start Date
    • Segmented Period End Date
  • Provider Fields

    • Primary Plan Attributee Provider Description
    • Empirical Attributee Primary Care Individual Provider Description
  • Location Fields

    • Patient State Abbreviation
    • Patient ZIP Code 5-Digit
    • UW HIP ADI Quintile Category
    • CDC SVI Overall Quintile Category
    • CDC SVI Socioeconomic Quintile Category
    • CDC SVI Household / Disability Quintile Category
    • CDC SVI Minority / Language Quintile Category
    • CDC SVI Housing / Transportation Quintile Category
  • Insurance Fields

    • Primary Payor Description
    • Primary Plan Description
    • Primary Plan Financial Class Description
  • Diagnosis Fields

    • CCW Count Category
    • Count CCW Conditions
    • CCW Systems Category
    • Count CCW Systems
    • Is CCW System Behavioral Health
    • Is CCW System Cardiovascular
    • Is CCW System Congenital
    • Is CCW System Endocrine/Metabolic
    • Is CCW System Genitourinary
    • Is CCW System Hematologic
    • Is CCW System Musculoskeletal
    • Is CCW System Neurological
    • Is CCW System Oncologic
    • Is CCW System Ophthalmologic
    • Is CCW System Pulmonary
    • Is CCW System Other
  • Numerator Fields

    • Segmented Admit Date
    • Segmented Discharge Date
    • Encounter ID
    • Facility Provider ID
    • Attending Provider ID
    • Encounter Start Date
    • Encounter End Date
    • Encounter LOS in Elapsed Midnights
    • Encounter LOS in Distinct Calendar Days
    • Is LOS in Days > 100
    • Is Discharge Status Home or Home with Home Health
    • Is Routine Discharge Home
    • Is Discharged Home with Home Health
    • Principal Discharge Diagnosis ICD-10-CM Code
    • Principal Discharge Diagnosis ICD-10-CM Description
    • Principal Discharge Diagnosis AHRQ CCS Multi-Level Diagnosis Category Tier 1 Code
    • Principal Discharge Diagnosis AHRQ CCS Multi-Level Diagnosis Category Tier 1 Description
    • MS-DRG Code
    • MS-DRG Description
    • Facility Provider Description
    • Attending Provider Description
    • CMS Admit Source Code
    • CMS Admit Source Description
    • CMS Admit Type Code
    • CMS Admission Type Description
    • CMS Place of Service Code
    • CMS Place of Service Description
    • CMS Patient Discharge Status Code
    • CMS Patient Discharge Status Description
    • Total Plan Paid Amount from All Plans
    • Primary Plan Paid Amount
    • Primary Plan Allowed Amount
    • Patient Paid Amount
  • [No Field Group]

    • Ursa Serial ID
  • Measure Fields

    • Denominator
    • Numerator

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