> For the complete documentation index, see [llms.txt](https://docs.snomed.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.snomed.org/snomed-ct-specifications/snomed-ct-editorial-guide/readme/authoring/domain-specific-modeling/clinical-finding-and-disorder/clinical-finding-and-disorder-modeling/specific-clinical-finding-and-disorder-modeling/iatrogenic.md).
# Iatrogenic
Adding further concepts to the iatrogenic disorder hierarchy is discouraged. Concepts must have *iatrogenic* in the FSN to be modeled with an IS\_A relationship to 12456005 |Iatrogenic disorder (disorder)|. An iatrogenic disorder should remain as a primitive concept if dependent only upon parent relationships to describe the disorder. In cases where the modeling is explicit, e.g. 202762009 |Iatrogenic cervical spinal stenosis (disorder)|, the concept can be defined.
For example,
Figure: Stated view of |Iatrogenic cervical spinal stenosis (disorder)| using IS_A 12456005 |Iatrogenic disorder (disorder)|
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