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Release Notes:
Data Element
Version 2010A1

Data Element Name: ICD Population Size
Collected For: Transmission, Aggregate Data File , Used in transmission of the Joint Commission’s aggregate data file.

  • Refer to the applicable version of the ORYX® Technical Implementation Guide for details.
Definition:Indicates the number of episode of care (EOC) records identified for a hospital, for a specific core measure, prior to the application of data integrity filters, measure exclusions, and/or sampling methodology for the specified time period.

The data element is based on the hospital's initial identification of episode of care (EOC) records for a measure set, stratum, or sub-population. These records are inclusive of both Medicare and Non-Medicare patients. This initial data pull utilizes administrative data such as ICD-9-CM diagnosis and procedure codes, admission date, and birthdate.

For specific measure set, stratum, and sub-population definitions, refer to the appropriate Initial Patient Population discussion in the Measure Information section of this manual.

If the hospital’s data has been sampled, this field contains the population from which the sample was originally drawn, NOT the sample size.

Suggested Data Collection Question:Not Applicable
Length:See ORYX Technical Implementation Guide
Occurs:See ORYX Technical Implementation Guide
Allowable Values:

See ORYX Technical Implementation Guide

Notes for Abstraction:NOTE TO PROGRAMMERS: The value of ICD Population Size is equal to (Initial Patient Population Size – Medicare Only + Initial Patient Population Size – Non-Medicare Only)
Suggested Data Sources:

Not Applicable

Additional Notes:
Guidelines for Abstraction:
Inclusion Exclusion
None None

ICD Population Size
Specifications Manual for Joint Commission National Quality Core Measures (2010A1)
Discharges 04-01-10 (2Q10) through 09-30-10 (3Q10)