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TMSIS Dataguide Medicaid.gov
Version 3.28.0

SSN

Data Element

DE Number

ELG036

System DE Number

ELG.003.036

File Name

ELG - ELIGIBLE

File Segment Number

ELG00003

Last updated

Definition The eligible individual's social security number. For newborns when value is unknown it is not required. For SSN states, in instances where the social security number is not known and a temporary MSIS Identification Number is used, the MSIS Identification Number field should be populated with the temporary MSIS Identification Number and the SSN field should be space-filled, or blank. When the SSN becomes known, the MSIS Identification Number field should continue to be populated with the temporary MSIS Identification Number and the SSN field should be populated with the newly acquired SSN for at least one monthly submission of the Eligible File so that T-MSIS can associated the temporary MSIS Identification Number and the social security number.
Size X(9)
FLF Start Position 94
FLF Stop Position 102
Segment Key Field Identifier Not Applicable
Coding Requirements 1. Value must be 9-digit number
2. For any individual, the value must be the same over all segment effective and end dates
3. (SSN State) if associated SSN Indicator (ELG.001.012) value is coded as "1", then value must equal MSIS Identification Number (ELG.002.019) value
4. Value can only be reported with one MSIS Identification Number (ELG.002.019)
5. Conditional
6. (Non-SSN State) if associated SSN Indicator (ELG.001.012) value is coded as "0", then value must not equal MSIS Identification Number (ELG.002.019)
Valid Value Code Set Valid Value Code Valid Value Name Valid Value Description Effective Start Date Effective End Date
DE Number System DE Number DE Name File Segment Number File Segment Name