ELG.022.265

Definition	A data element to capture the various identifiers assigned to Medicaid and CHIP beneficiary by various entities. The specific type of identifier is shown in the corresponding value in the Eligible Identifier Type data element. States should provide all Old MSIS Identification Number with Eligible Identifier Type = "2" to T-MSIS in case the state changes the MSIS Identification Number of a beneficiary. The state should submit updates to T-MSIS whenever an identifier is retired or issued. States should provide Old MSIS Identification Number with Reason for Change = "MERGE" to T-MSIS if the state was reporting multiple MSIS Identification Numbers for a single beneficiary and merges them under a single MSIS Identification Number. States should provide Old MSIS Identification Number with Reason for Change = "UNMERGE" to T-MSIS if the state unmerges a beneficiary from another beneficiary. For example, if a newborn child is originally reported with the mother's MSIS Identification Number and is then assigned a different MSIS Identification Number. States should provide Old MSIS Identification Number with Reason for Change = "LSE" to T-MSIS if the state assigns a new MSIS Identification Number to any beneficiaries during large system enhancement in state MMIS. States should provide Old MSIS Identification Number with Reason for Change = "TCAM" to T-MSIS if the Medicaid and Separate CHIP programs use different MSIS Identifier Number schemas and beneficiaries are transferred from CHIP to Medicaid or from Medicaid to CHIP and a new MSIS Identification Number is issued.
Size	X(20)
FLF Start Position	77
FLF Stop Position	96
Segment Key Field Identifier	4
Coding Requirements	1. Value must be 20 characters or less 2. Mandatory 3. Must not contain a pipe or asterisk symbol

RULE ID	RULE Definition
RULE-7227
RULE-7233

Published Date	Data Guide Version	Data Element	Action	Field	Before	After
09/12/2024	3.29.0	ELG.022.265	UPDATE	Definition	A data element to capture the various identifiers assigned to Medicaid and CHIP beneficiary by various entities. The specific type of identifier is shown in the corresponding value in the Eligible Identifier Type data element. States should provide all Old MSIS Identification Number with Eligible Identifier Type = 2 to T-MSIS in case the state changes the MSIS Identification Number of a beneficiary. The state should submit updates to T-MSIS whenever an identifier is retired or issued. States should provide Old MSIS Identification Number with Reason for Change = 'MERGE' to T-MSIS if the state was reporting multiple MSIS Identification Numbers for a single beneficiary and merges them under a single MSIS Identification Number. States should provide Old MSIS Identification Number with Reason for Change = 'UNMERGE' to T-MSIS if the state unmerges a beneficiary from another beneficiary. For example, if a newborn child is originally reported with the mother's MSIS Identification Number and is then assigned a different MSIS Identification Number. States should provide Old MSIS Identification Number with Reason for Change = 'LSE' to T-MSIS if the state assigns a new MSIS Identification Number to any beneficiaries during large system enhancement in state MMIS. States should provide Old MSIS Identification Number with Reason for Change = 'TCAM' to T-MSIS if the Medicaid and Separate CHIP programs use different MSIS Identifier Number schemas and beneficiaries are transferred from CHIP to Medicaid or from Medicaid to CHIP and a new MSIS Identification Number is issued.	A data element to capture the various identifiers assigned to Medicaid and CHIP beneficiary by various entities. The specific type of identifier is shown in the corresponding value in the Eligible Identifier Type data element. States should provide all Old MSIS Identification Number with Eligible Identifier Type = "2" to T-MSIS in case the state changes the MSIS Identification Number of a beneficiary. The state should submit updates to T-MSIS whenever an identifier is retired or issued. States should provide Old MSIS Identification Number with Reason for Change = "MERGE" to T-MSIS if the state was reporting multiple MSIS Identification Numbers for a single beneficiary and merges them under a single MSIS Identification Number. States should provide Old MSIS Identification Number with Reason for Change = "UNMERGE" to T-MSIS if the state unmerges a beneficiary from another beneficiary. For example, if a newborn child is originally reported with the mother's MSIS Identification Number and is then assigned a different MSIS Identification Number. States should provide Old MSIS Identification Number with Reason for Change = "LSE" to T-MSIS if the state assigns a new MSIS Identification Number to any beneficiaries during large system enhancement in state MMIS. States should provide Old MSIS Identification Number with Reason for Change = "TCAM" to T-MSIS if the Medicaid and Separate CHIP programs use different MSIS Identifier Number schemas and beneficiaries are transferred from CHIP to Medicaid or from Medicaid to CHIP and a new MSIS Identification Number is issued.
09/21/2023	3.13.0	ELG.022.265	UPDATE	Segment key field identifier	Not Applicable	4
08/28/2023	3.12.0	ELG.022.265	UPDATE	Coding requirement	1. Value must be 20 characters or less2. Mandatory3. Must not contain a pipe symbol	1. Value must be 20 characters or less2. Mandatory3. Must not contain a pipe or asterisk symbol
03/27/2020	2.4.0	ELG-IDENTIFIERS	ADD	Data Dictionary	N/A	Update Data Dictionary document for ELG-IDENTIFIERS segment Update Data Dictionary Appendices document for ELG-IDENTIFIER-TYPE data element Update Data Dictionary Data Validation Rule document with all rules of ELG-IDENTIFIERS segment Update Data Dictionary Record Layout for ELG-IDENTIFIERS Update Data Dictionary Segment Relationship doc for ELG-IDENTIFIERS
03/27/2020	2.4.0	ELG-IDENTIFIER-TYPE	ADD	Data Dictionary - Valid Values	N/A	Identifier Type Name 1 Medicaid Card ID 2 Old MSIS Identification Number
06/24/2022	3.0.0	ELG-IDENTIFIER-ISSUING-ENTITY-ID	UPDATE	Data Dictionary	DE No\|Data Element Name\|Definition\| CODING REQUIREMENT\| ELG262\|ELG-IDENTIFIER-ISSUING-ENTITY-ID\|This data element is reserved for future use.\| 1.(S) value must be 18 characters or less 2.(N) optional\|	DE No\|Data Element Name\|Definition\| CODING REQUIREMENT\| ELG262\|ELG-IDENTIFIER-ISSUING-ENTITY-ID\|This data element is reserved for future use\| 1.(S) value must be 18 characters or less\|

ELG-IDENTIFIER