Key Information

Measure Name	Total # of MSIS IDs
File Type	ELG
Measure ID	EL-S-001-1
Measure Type	Count
Content area	ELG

Validation

Validation Type	Longitudinal

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	N/A
Maximum	N/A
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	ELG019

Annotation

Count the total number of eligible 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: Count MSIS IDs Count the number of unique MSIS IDs that satisfy the criteria from STEP 1