Multisystem disorders are often rare conditions. There may be limited information about such disorders, so they should be carefully modeled.
When determining parent concepts:
- A multisystem parent concept should be included.
- Genetic or inherited disorders should be modeled in the same way as other genetic and inherited disorders.
- The manifestations of the disorder must always necessarily be true before assigning the relevant parents.
- Attributes must also always necessarily be true.
- For example,
- 702410002 |Iris coloboma with ptosis, hypertelorism, and mental retardation (disorder)| Since the coloboma of the iris is not always present, coloboma would not be explicitly modeled in the relationships.
- For example,
Some multisystem disorders can be named by their manifestations. The FSN should be descriptive rather than just a list of names.
For example,
A multisystem disorder with an eponymous syndrome name should be included as a synonym only.
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