Key Information

Measure Name	% of MSIS IDs with more than one primary segment (PRIMARY-ELIGIBILITY-GROUP-IND = 1)
File Type	ELG
Measure ID	EL-3-001_2-14
Measure Type	Duplicate percentage
Content area	ELG

Validation

Validation Type	Inferential

Measure Priority

Measure Priority	N/A
Focus Area	N/A
Category	N/A

Claim Information

Claim Type	N/A
Adjustment Type	N/A
Crossover Type	N/A

Thresholds

Minimum	0
Maximum	0.001
TA Minimun
TA Maximum
Longitudinal Threshold	N/A
For TA (for including in compliance training)	No
For TA (Longitudinal)	No

Data Elements

DD Data Element	MSIS-IDENTIFICATION-NUM
DD Data Element Number	ELG082

Annotation

Calculate the percentage of unique MSIS IDs that are associated with more than one primary eligibility group record of all unique MSIS IDs

Specification

STEP 1: Enrolled on the last day of DQ report month Define the eligible population from segment ENROLLMENT-TIME-SPAN-ELG00021 by keeping active records that satisfy the following criteria: 1. ENROLLMENT-EFF-DATE <= last day of the DQ report month 2. ENROLLMENT-END-DATE >= last day of the DQ report month OR missing 3. MSIS-IDENTIFICATION-NUM is not missing STEP 2: Eligibility determinants on the last day of DQ report month Using the MSIS IDs that meet the criteria from STEP 1, join to segment ELIGIBILITY-DETERMINANTS-ELG00005 by keeping records that satisfy the following criteria: 1. PRIMARY-ELIGIBILITY-GROUP-IND = 1 2a. ELIGIBILITY-DETERMINANT-EFF-DATE <= last day of the DQ report month 3a. ELIGIBILITY-DETERMINANT-END-DATE >= last day of the DQ report month OR missing OR 2b. ELIGIBILITY-DETERMINANT-EFF-DATE is missing 3b. ELIGIBILITY-DETERMINANT-END-DATE is missing STEP 3: Count duplicate MSIS IDs Of the MSIS IDs that meet the criteria from STEP 2, count the number of unique MSIS IDs that appear more than once STEP 4: Percentage Divide the count of unique MSIS IDs from STEP 3 by the count in STEP 1