In the International Edition of SNOMED CT three reference sets of the type
| Concept |
|---|
| t | 900000000000480006 | Attribute value type reference set | |
|---|
|
are used to indicate the reason why components have been inactivated
. These are: | Concept |
|---|
| t | 900000000000489007 | Concept inactivation indicator attribute value reference set (foundation metadata concept) | |
|---|
|
| Concept |
|---|
| t | 900000000000490003 | Description inactivation indicator attribute value reference set (foundation metadata concept) | |
|---|
|
| Concept |
|---|
| t | 900000000000547002 | Relationship inactivation indicator attribute value reference set (foundation metadata concept) | |
|---|
|
For example, if the inactivated component is marked as
| Concept |
|---|
| t | 900000000000484002 |Ambiguous| |
|---|
|
, this will typically mean that there will be more than one component replacing the inactivated component. The possible replacements will be available in the
| Concept |
|---|
| t | 900000000000523009 | POSSIBLY EQUIVALENT TO association reference set (foundation metadata concept) | |
|---|
|
.
Another example is concepts that are inactivated because they were
| Concept |
|---|
| t | 900000000000482003 |Duplicate| |
|---|
|
. This is used if two concepts represent the same meaning, because then one of those concepts must be inactivated. The equivalent concept will be represented in the
| Concept |
|---|
| t | 900000000000527005 |SAME AS association reference set (foundation metadata concept)| |
|---|
|
. Please refer to
3.2.6.3.2. Representing Historical Associations to see which reference sets relate to the various reasons for inactivation.