Sources and methodology
Evidence is ranked by authority, plan specificity, jurisdiction, relevance, and effective date.
Source priority
Official plan documents and current insurer policies are strongest for exact-plan questions. Federal and state sources support general guidance. Blogs and general AI knowledge do not establish plan coverage.
Safe abstention
We return “unable to determine” when there is no evidence or the plan cannot be matched, and “evidence conflicts” when current authoritative sources disagree. Search results are not indexed.
Corrections
Use the feedback page to report outdated, incorrectly scoped, or misleading evidence. Source changes should invalidate related cached answers.