Paste a set of codes. See which HCCs they map to under each published model, and where two of them collapse into one.
What a set of codes actually yields once the model collapses the duplicates.
What this page does not do
Mapping and hierarchy come from the CMS model packages, which are public domain. This reports what a published model does with the codes given. It is not advice about which codes to report — that is answered in the chart.