# Logical Record Architecture for Health and Social Care
## Discharge Summary Release 0.02

Contents
The content of this release is not comprehensive and is not fully validated and must not be used in live system implementations.
# Reference Model Class: UNBOUND_DATA_ELEMENT
The UNBOUND_DATA_ELEMENT class is an ELEMENT whose data value is not described by (i.e. bound to) a SNOMED CT coded concept or expression. The value attribute supports any type of content including text (plain or with mark up) or binary data intended to be presented for human viewing or some other form of interpretation. Also it supports terms and expressions codified using systems other than SNOMED CT. It is important to note that the data content of an UNBOUND_DATA_ELEMENT is not necessarily unstructured (i.e. not machine processable). It may be processable by dedicated text (e.g. NLP), media or other data processing software that understands the content structure. Furthermore such processing may result in the output of assertions that can be expressed using one or more specialised instances of BOUND_DATA_ELEMENT and therefore amenable to meaning-based retrieval. However, from the perspective of meaning-based retrieval within the record, the content of the originating UNBOUND_DATA_ELEMENT is semantically opaque. ## Specializes ## ELEMENT ## Attributes
Name | Data type | Occurs | Description
--- | --- | --- | ---
value | ANY | 1..1 | An ELEMENT has a single DATA_VALUE containing the value, unless this is indicated as absent by a null_flavour attribute.
## Constraints
Type | Name | Specification
--- | --- | ---
meaning undefined | LRA Invariant | inv: meaning.oclIsUndefined()
name value | LRA Inv: Fixed | inv: name.value = <a href="$element://{99CDF407-1579-4eac-BB4F-F9D25CB6AA56}"><font color="#0000ff"><u>LraRecordComponentName</u></font></a>.UNBOUND_DATA_ELEMENT