# 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: INVESTIGATION_ACTIVITY_ELEMENT
The INVESITIGATION_ACTIVITY_ELEMENT class is an ACTIVITY_ELEMENT whose coded meaning is constrained to represent a SNOMED CT procedure situation that resulted in (or is intended to result) in one or more observations (of type OBSERVATION_ELEMENT). The focus concept of the observable situation must be subsumed either by 386053000 | evaluation procedure | or 108252007 | laboratory procedure | or by 363787002 | observable entity | (for any evaluation activity that does not have a corresponding 'evaluation procedure'). The value attribute is constrained to the null flavor NA | not applicable | so as to prohibit its use within the LRA whilst maintaining conformance to EN 13606-1:2007. ## Specializes ## ACTIVITY_ELEMENT ## Constraints
Type | Name | Specification
--- | --- | ---
meaning is an investigation | LRA Invariant | --The meaning.code conforms to the specified semantic constraint. inv: meaning.code.semantic(LraInvestigationActivityElementMeaning)
name value | LRA Inv: Fixed | inv: name.value = <a href="$element://{99CDF407-1579-4eac-BB4F-F9D25CB6AA56}"><font color="#0000ff"><u>LraRecordComponentName</u></font></a>.INVESTIGATION_ACTIVITY_ELEMENT