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The SIR Service Tree (“Service Tree”) code set is maintained by the Society of Interventional Radiology through the Standards of Practice Committee. The Service Tree describes Interventional Radiology diagnostic and therapeutic procedures and is designed to communicate uniform information about procedures among hospitals, providers and in the future the tree will be with registries.

The Service Tree is similar to ICD-10, except it identifies the services with additional granularity due to the uniqueness of IR procedures.

History
Work on the Service Tree begun in 1995 and was released in an Interventional Radiology software tool called HI-IQ.

Data Structure Organization
The data is captured and organized within a hierarchical model (tree-like structure). The structure allows for representing information use parent/child relationships. Each procedure defined with the service tree can have one parent with many children, but each child has only one parent.