| Vocabulary Type | Concept Domain |
| Concept Domain | Namespace ID |
| Code System Name | |
| Code System Identifier | |
| Code System OID | |
| HL7 Table Identifier | HL70300 |
| Version | |
| Status | Active |
| Where Used | HD.1 |
| Purpose and Use | Table of codes which specify the unique name of the system that stores the data. It was previously named the Application ID. No suggested values. |