| Name | Kind | Description |
| false_valid | attribute | True if the value False is allowed. |
| FEEDER_AUDIT | class | The FEEDER_AUDIT class defines the semantics of an audit trail which is constructed to describe the origin of data that have been transformed into openEHR form and committed to the system. |
| FEEDER_AUDIT | artifact | |
| feeder_audit | relation | Audit trail from non-openEHR system of original commit of information forming the content of this node, or from a conversion gateway which has synthesised this node. |
| FEEDER_AUDIT_DETAILS | class | Audit details for any system in a feeder system chain. Audit details here means the general notion of who/where/when the information item to which the audit is attached was created. None of the attributes is defined as mandatory, however, in different scenarios, various combinations of attributes will usually be mandatory. This can be controlled by specifying feeder audit details in legacy archetypes. |
| FEEDER_AUDIT_DETAILS | artifact | |
| feeder_system_audit | relation | Any audit information for the information item from the feeder system, if different from the originating system. |
| feeder_system_item_ids | attribute | Identifiers used for the item in the feeder system, where the feeder system is distinct from the originating system. |
| fillers | relation | |
| FOLDER | class | The concept of a named folder. |
| FOLDER | artifact | |
| folders | relation | Sub-folders of this FOLDER. |
| formalism | attribute | name of the formalism, e.g. GLIF 1.0 , Proforma etc. |
| formatting | attribute | A format string of the form name:value; name:value... , e.g. "font-weight : bold; font-family : Arial; font-size : 12pt;". Values taken from W3C CSS2 properties lists back-ground and font . |
| fractional_seconds_allowed | attribute | True if fractional seconds are allowed in the constrained Duration. |
| fragment_id | operation | A part of, a fragment or a sub-function within an object. Allows references to sub-parts of objects, such as a certain line and character position in a text object. The syntax and semantics are defined by the application responsible for the object. |
| function | attribute | The function of the Party in this participation (note that a given party might participate in more than one way in a particular activity). This attribute should be coded, but cannot be limited to the HL7v3:ParticipationFunction vocabulary, since it is too limited and hospital-oriented. |