Maybe I’m misunderstanding the chart, but the 86403 number appears under the header “TUITION & FEES & HLTH. INS.” So while it does not include COL expenses, it does appear to cover mandatory insurance as well as fees not included in tuition.
Fun fact: The 25 most expensive OOS public schools are all more expensive than the most expensive private school (commonwealth, which apparently is more expensive for OOS - didn’t know any private school did that). If we use Tufts, the most expensive school with no distinction by residence, we need to go through 27 OOS public schools.