BI presentation mart for service-market exploration. Grain: one row per exact comparison context - service_code_key, setting, billing_class, modifier_signature, amount_kind, comparison_methodology, and drug unit context (equivalently one row per service_context_key). All percentile and spread statistics are HOSPITAL-WEIGHTED (computed over one representative amount per hospital, so repeated contract rows add no weight) and METHODOLOGY-SPECIFIC (per-diem daily rates, case rates, and fee-schedule amounts are never mixed in one distribution). Statistics are published only where at least 3 hospitals have a valid representative amount.
Contracts excluded because one contract carried multiple distinct amounts for this exact context (a hidden pricing distinction).