This case-sensitive code system https://elga.moped.at/CodeSystem/CompositionSectionsCS defines the following codes:
| Code | Display |
| SV | Zuständige SV |
| LGF | Zuständiger LGF |
| KH | Zuständiges KH |
| ABT | Besuchte Abteilungen |
| COV | Coverages |
| DIAG | Diagnosen (Conditions) |
| LEI | Leistungen (Procedures) |
| OBS | Observations |
| VAEReq | VAERequests |
| VAEResp | VAEResponses |
| LKFReq | LKFRequests |
| LKFResp | LKFResponses |
| HAUPTV | Hauptversicherter |
| QResp | QuestionnaireResponses |
| ARKReq | ARK Requests |
| ARKResp | ARK Responses |
| ARKPay | ARK Status Updates |
| Comm | Communication & Responses |