When should I use parent codes and subcodes?
Overview
Use a parent code for a broad analytical domain and subcodes for reusable, distinct meanings within it. A hierarchy is useful when it clarifies relationships and supports analysis at both broad and detailed levels. Keep codes at the top level when they do not genuinely belong under a broader concept, and avoid creating a hierarchy only to make the tree look organized.
What to do
- Check that every child code answers “a type or aspect of what?” in relation to its parent.
- Move a code by editing its parent or by using supported drag-and-drop hierarchy controls.
- Choose No Parent (Top level) when the code should return to the root.