Key Information

Measure Name	% of SSNs with more than one MSIS ID
File Type	ELG
Measure ID	EL-1-005_1-20
Measure Type	Non-claims percentage
Content area	ELG

Validation

Validation Type	Inferential

Measure Priority

Measure Priority	Medium
Focus Area	N/A
Category	Beneficiary demographics

Claim Information

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

Thresholds

Minimum	0
Maximum	0.02
TA Minimun	0
TA Maximum	0.02
Longitudinal Threshold	N/A
For TA (for including in compliance training)	TA- Inferential
For TA (Longitudinal)	No

Data Elements

DD Data Element	SSN • MSIS-IDENTIFICATION-NUM
DD Data Element Number	ELG036 • ELG033

Annotation

Calculate the percentage of SSNs with more than one MSIS ID

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: Variable demographics on the last day of DQ report month Using the MSIS IDs that meet the criteria from STEP 1, join to segment VARIABLE-DEMOGRAPHIC-ELG00003 by keeping records that satisfy the following criteria: 1a. VARIABLE-DEMOGRAPHIC-ELEMENT-EFF-DATE <= last day of the DQ report month 2a. VARIABLE-DEMOGRAPHIC-ELEMENT-END-DATE >= last day of the DQ report month OR missing OR 1b. VARIABLE-DEMOGRAPHIC-ELEMENT-EFF-DATE is missing 2b. VARIABLE-DEMOGRAPHIC-ELEMENT-END-DATE is missing STEP 3: More than one MSIS ID per SSN Of the records meeting the criteria from STEP 2, further refine the population by keeping records with more than one MSIS-IDENTIFICATION-NUM per SSN STEP 4: Calculate percentage for measure DIVIDE the count of SSNs from STEP 3 by the count from STEP 1