BI presentation mart for comparison blocker explanations. Grain: one row per snapshot_id and blocker_code. Counts use the same blocker vocabulary as the Gold comparison framework and are joined to hospital/snapshot display context. Covers the 10 atomic row-grain blockers; the two cohort/contract-grain blockers are surfaced elsewhere: below_min_hospital_denominator as gld_bi__service_market_explorer.comparison_status = 'insufficient_denominator', and multiple_amounts_per_contract_context (decision 0021) as the explorer's ambiguous_contract_count / excluded_hospital_count and the payer explorer's cash_comparison_status.
Health system the hospital belongs to.