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I need both facility and nonfacility rates."},{"title":"Revenue cycle analysis with modifier","prompt":"Look up Medicare PFS rates for CPT code 90837 with modifier 95 across all localities — I want the national rate and the min/max range to benchmark our telehealth billing."}],"resultDescription":"Returns structured JSON with the billing code's description, status, release effective dates, national facility and nonfacility allowed amounts, a summary of min/max across all localities, and an array of per-locality allowed amounts (facility and nonfacility) for all 109 Medicare payment localities or a filtered subset by state.","failureModes":["Invalid or non-existent billing code returns an error or empty result","Code not priced under the Physician Fee Schedule (e.g. global/bundled codes) returns priced:false","Invalid date or release format returns a 400 validation error","Expired or future release ID may return no data","State code not matching any locality returns empty localities array","Rate limit exceeded beyond 3 free daily calls without payment fails without x402 payment header"],"whenToPreferThis":"Use this endpoint when you need Medicare Physician Fee Schedule geographic variation data — specifically allowed amounts across all 109 CMS payment localities for a given CPT/HCPCS code. 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