Official websites use .gov
                                    
                                    A
                                    .gov website belongs to an official government
                                    organization in the United States.
                                
                                    Secure .gov websites use HTTPS
                                    
                                    A
                                    lock () or https:// means you've safely connected to
                                    the .gov website. Share sensitive information only on official,
                                    secure websites.
                                
Data Element
ELG021
ELG.002.021
| Definition | Individual's last name; last name component of full name (e.g. First Name, Middle Initial, Last Name). | 
|---|---|
| Size | X(30) | 
| FLF Start Position | 72 | 
| FLF Stop Position | 101 | 
| Segment Key Field Identifier | Not Applicable | 
| Coding Requirements | 1. Value must be 30 characters or less 2. Value must not contain a pipe or asterisk symbols 3. Mandatory  | 
                                    
| 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 | 
|---|---|---|---|---|
| CIP172 | CIP.002.172 | ELIGIBLE-LAST-NAME | CIP00002 | CLAIM-HEADER-RECORD-IP | 
| CLT123 | CLT.002.123 | ELIGIBLE-LAST-NAME | CLT00002 | CLAIM-HEADER-RECORD-LT | 
| COT105 | COT.002.105 | ELIGIBLE-LAST-NAME | COT00002 | CLAIM-HEADER-RECORD-OT | 
| CRX063 | CRX.002.063 | ELIGIBLE-LAST-NAME | CRX00002 | CLAIM-HEADER-RECORD-RX | 
| TPL024 | TPL.002.024 | ELIGIBLE-LAST-NAME | TPL00002 | TPL-MEDICAID-ELIGIBLE-PERSON-MAIN |