> For the complete documentation index, see [llms.txt](https://help.santesuite.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.santesuite.org/santedb/data-and-information-architecture/conceptual-data-model/acts/class-concepts.md).

# Class Concepts

Acts are classified into one of these four types based upon their ClassConcept code. This dictates what type of Act the particular tuple in the database represents. 

| Act Class                | Code   | Description                                                                                            |
| ------------------------ | ------ | ------------------------------------------------------------------------------------------------------ |
| Observation              | OBS    | Indicates that the act represents a value which was observed.                                          |
| Substance Administration | SBADM  | Indicates that the act represents the administration of a substance to an entity.                      |
| Patient Encounter        | ENC    | The act represents an encounter between one or more providers of care and one or more clients of care. |
| Registration             | REG    | The act represents a registration whereby new data was collected about an entity.                      |
| Account Management       | ACCM   | The act represents the management (adjustment) of an account.                                          |
| Supply                   | SPLY   | The act represents the supply of one or more materials to/from one or more entities.                   |
| Condition                | COND   | The act represents a chronic or recurring problem or health condition.                                 |
| Procedure                | PROC   | The act represents a clinical procedure which was performed on the client of care.                     |
| Battery                  | BAT    | The act represents a series of procedures, observations, administrations, etc.                         |
| Transport                | TRANS  | The act represents the physical transporting of materials to/from one or more entities.                |
| Account                  | ACCT   | The act represents an active account (financial, stock, etc.) on which transactions can be performed.  |
| Financial Transaction    | FTRANS | The act represents a financial transaction where monies are exchanged between one or more entities.    |
| Invoice Element          | INVE   | The act represents a sub-element of a financial transaction.                                           |

The class concept list is extensible.


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