{"procedure":{"code_type":"CPT","code":"91013","lay_name":"Added drug or fluid challenge during esophagus study","blurb":"An add-on to the esophageal pressure study in which a medication or fluid infusion is given and the response is interpreted and reported; billed in addition to the main study.","slug":"cpt-91013-added-drug-or-fluid-challenge-during-esophagus-study","description":"Esophageal Motility Std W/I&R Stim/Perfusion","name_source":"llm:claude-opus-5","name_reviewed":false,"ccs":{"code":"97","label":"Other gastrointestinal diagnostic procedures","surgery_flag":"neither"}},"settings":{"outpatient":{"setting":"outpatient","computed_at":"2026-09-25T11:55:12.319193Z","corpus_loaded_through":"2026-09-25T01:10:45.071082Z","filing_date_min":"2024-12-01","filing_date_max":"2026-09-17","checked_from":"2026-09-05T02:23:05.982663Z","checked_through":"2026-09-25T01:14:07.150894Z","n_priced_setters":3956,"n_filed":414,"n_usable":318,"n_not_usable":0,"n_labelled":65,"n_no_cash":31,"n_estimated":0,"n_states":41,"cash_p10":32.16,"cash_p20":82.69,"cash_p25":154.05,"cash_p50":589.2,"cash_p75":1341.75,"cash_p80":1398.79,"cash_p90":1635.2,"cash_mean_trimmed":693.2,"gross_p50":1035.0,"cash_to_gross_p50":0.6,"medicare_rate":null,"medicare_schedule":null,"medicare_year":null,"cash_to_medicare_p50":null,"by_state":[{"state":"AL","n":3,"p20":null,"p50":null,"p80":null},{"state":"AR","n":1,"p20":null,"p50":null,"p80":null},{"state":"CA","n":50,"p20":1138.2,"p50":1635.2,"p80":1635.2},{"state":"CO","n":4,"p20":null,"p50":null,"p80":null},{"state":"CT","n":1,"p20":null,"p50":null,"p80":null},{"state":"FL","n":34,"p20":497.6,"p50":589.2,"p80":1392.95},{"state":"HI","n":2,"p20":null,"p50":null,"p80":null},{"state":"IA","n":3,"p20":null,"p50":null,"p80":null},{"state":"IL","n":19,"p20":305.0,"p50":1563.1,"p80":1563.1},{"state":"IN","n":14,"p20":455.72,"p50":525.5,"p80":747.43},{"state":"KS","n":2,"p20":null,"p50":null,"p80":null},{"state":"KY","n":5,"p20":null,"p50":null,"p80":null},{"state":"LA","n":6,"p20":null,"p50":null,"p80":null},{"state":"MA","n":2,"p20":null,"p50":null,"p80":null},{"state":"MD","n":1,"p20":null,"p50":null,"p80":null},{"state":"ME","n":1,"p20":null,"p50":null,"p80":null},{"state":"MI","n":23,"p20":24.91,"p50":28.6,"p80":35.2},{"state":"MN","n":4,"p20":null,"p50":null,"p80":null},{"state":"MO","n":5,"p20":null,"p50":null,"p80":null},{"state":"MS","n":3,"p20":null,"p50":null,"p80":null},{"state":"NC","n":3,"p20":null,"p50":null,"p80":null},{"state":"ND","n":1,"p20":null,"p50":null,"p80":null},{"state":"NE","n":2,"p20":null,"p50":null,"p80":null},{"state":"NH","n":2,"p20":null,"p50":null,"p80":null},{"state":"NJ","n":13,"p20":30.54,"p50":48.1,"p80":188.77},{"state":"NM","n":1,"p20":null,"p50":null,"p80":null},{"state":"NV","n":2,"p20":null,"p50":null,"p80":null},{"state":"NY","n":6,"p20":null,"p50":null,"p80":null},{"state":"OH","n":19,"p20":729.0,"p50":1341.75,"p80":1341.75},{"state":"OK","n":5,"p20":null,"p50":null,"p80":null},{"state":"OR","n":1,"p20":null,"p50":null,"p80":null},{"state":"PA","n":11,"p20":212.0,"p50":451.2,"p80":575.1},{"state":"RI","n":2,"p20":null,"p50":null,"p80":null},{"state":"SC","n":1,"p20":null,"p50":null,"p80":null},{"state":"TN","n":2,"p20":null,"p50":null,"p80":null},{"state":"TX","n":28,"p20":1015.33,"p50":1075.06,"p80":1720.98},{"state":"VT","n":1,"p20":null,"p50":null,"p80":null},{"state":"WA","n":4,"p20":null,"p50":null,"p80":null},{"state":"WI","n":27,"p20":69.35,"p50":154.05,"p80":154.05},{"state":"WV","n":1,"p20":null,"p50":null,"p80":null},{"state":"WY","n":3,"p20":null,"p50":null,"p80":null}],"by_segment":{"hospital_type":[{"key":"acute","n":255,"p20":82.65,"p50":589.2,"p80":1464.0},{"key":"childrens","n":22,"p20":729.0,"p50":1281.0,"p80":1596.58},{"key":"critical_access","n":41,"p20":69.35,"p50":176.94,"p80":905.0}],"ownership":[{"key":"for_profit","n":30,"p20":497.6,"p50":655.63,"p80":1662.0},{"key":"government","n":26,"p20":77.9,"p50":497.6,"p80":1124.24},{"key":"nonprofit","n":262,"p20":78.85,"p50":589.2,"p80":1398.79}],"affiliation":[{"key":"affiliated","n":284,"p20":83.6,"p50":589.2,"p80":1401.48},{"key":"independent","n":34,"p20":63.0,"p50":641.03,"p80":1351.44}]},"histogram":[{"lo":28.6,"hi":44.33,"n":32},{"lo":44.33,"hi":68.72,"n":12},{"lo":68.72,"hi":106.53,"n":12},{"lo":106.53,"hi":165.13,"n":22},{"lo":165.13,"hi":255.97,"n":10},{"lo":255.97,"hi":396.79,"n":16},{"lo":396.79,"hi":615.07,"n":46},{"lo":615.07,"hi":953.44,"n":27},{"lo":953.44,"hi":1477.95,"n":70},{"lo":1477.95,"hi":2291.0,"n":43}],"previous":null},"inpatient":{"setting":"inpatient","computed_at":"2026-09-25T11:55:12.319193Z","corpus_loaded_through":"2026-09-25T01:10:45.071082Z","filing_date_min":"2024-12-01","filing_date_max":"2026-09-15","checked_from":"2026-09-05T02:23:05.982663Z","checked_through":"2026-09-25T01:13:55.396173Z","n_priced_setters":3956,"n_filed":259,"n_usable":202,"n_not_usable":0,"n_labelled":54,"n_no_cash":3,"n_estimated":0,"n_states":35,"cash_p10":69.35,"cash_p20":154.05,"cash_p25":212.0,"cash_p50":764.56,"cash_p75":1341.75,"cash_p80":1392.95,"cash_p90":1635.2,"cash_mean_trimmed":785.28,"gross_p50":982.0,"cash_to_gross_p50":0.6,"medicare_rate":null,"medicare_schedule":null,"medicare_year":null,"cash_to_medicare_p50":null,"by_state":[{"state":"AL","n":1,"p20":null,"p50":null,"p80":null},{"state":"AR","n":1,"p20":null,"p50":null,"p80":null},{"state":"CA","n":46,"p20":1144.0,"p50":1635.2,"p80":1635.2},{"state":"CO","n":1,"p20":null,"p50":null,"p80":null},{"state":"CT","n":1,"p20":null,"p50":null,"p80":null},{"state":"FL","n":28,"p20":497.6,"p50":589.2,"p80":1392.95},{"state":"HI","n":1,"p20":null,"p50":null,"p80":null},{"state":"IA","n":2,"p20":null,"p50":null,"p80":null},{"state":"IL","n":7,"p20":null,"p50":null,"p80":null},{"state":"IN","n":2,"p20":null,"p50":null,"p80":null},{"state":"KS","n":1,"p20":null,"p50":null,"p80":null},{"state":"KY","n":5,"p20":null,"p50":null,"p80":null},{"state":"MA","n":1,"p20":null,"p50":null,"p80":null},{"state":"MD","n":1,"p20":null,"p50":null,"p80":null},{"state":"MI","n":7,"p20":null,"p50":null,"p80":null},{"state":"MN","n":3,"p20":null,"p50":null,"p80":null},{"state":"MO","n":2,"p20":null,"p50":null,"p80":null},{"state":"MS","n":1,"p20":null,"p50":null,"p80":null},{"state":"NC","n":2,"p20":null,"p50":null,"p80":null},{"state":"ND","n":1,"p20":null,"p50":null,"p80":null},{"state":"NH","n":1,"p20":null,"p50":null,"p80":null},{"state":"NJ","n":1,"p20":null,"p50":null,"p80":null},{"state":"NV","n":1,"p20":null,"p50":null,"p80":null},{"state":"NY","n":2,"p20":null,"p50":null,"p80":null},{"state":"OH","n":16,"p20":1001.65,"p50":1341.75,"p80":1341.75},{"state":"OK","n":4,"p20":null,"p50":null,"p80":null},{"state":"PA","n":10,"p20":34.0,"p50":451.2,"p80":531.0},{"state":"RI","n":2,"p20":null,"p50":null,"p80":null},{"state":"TN","n":2,"p20":null,"p50":null,"p80":null},{"state":"TX","n":17,"p20":1015.33,"p50":1015.33,"p80":1075.06},{"state":"VT","n":1,"p20":null,"p50":null,"p80":null},{"state":"WA","n":2,"p20":null,"p50":null,"p80":null},{"state":"WI","n":27,"p20":69.35,"p50":154.05,"p80":154.05},{"state":"WV","n":1,"p20":null,"p50":null,"p80":null},{"state":"WY","n":1,"p20":null,"p50":null,"p80":null}],"by_segment":{"hospital_type":[{"key":"acute","n":172,"p20":275.8,"p50":905.0,"p80":1392.95},{"key":"childrens","n":6,"p20":null,"p50":null,"p80":null},{"key":"critical_access","n":24,"p20":68.4,"p50":154.05,"p80":1003.9}],"ownership":[{"key":"for_profit","n":17,"p20":null,"p50":null,"p80":null},{"key":"government","n":18,"p20":null,"p50":null,"p80":null},{"key":"nonprofit","n":167,"p20":154.05,"p50":872.25,"p80":1392.95}],"affiliation":[{"key":"affiliated","n":181,"p20":154.05,"p50":872.25,"p80":1392.95},{"key":"independent","n":21,"p20":275.8,"p50":708.4,"p80":1267.2}]},"histogram":[{"lo":35.2,"hi":51.67,"n":8},{"lo":51.67,"hi":75.85,"n":7},{"lo":75.85,"hi":111.34,"n":9},{"lo":111.34,"hi":163.44,"n":17},{"lo":163.44,"hi":239.91,"n":2},{"lo":239.91,"hi":352.18,"n":8},{"lo":352.18,"hi":516.97,"n":20},{"lo":516.97,"hi":758.87,"n":21},{"lo":758.87,"hi":1113.96,"n":30},{"lo":1113.96,"hi":1635.2,"n":63}],"previous":null}},"related":[{"code_type":"CPT","code":"49180","lay_name":"Needle biopsy of an abdominal or deep abdominal mass","slug":"cpt-49180-needle-biopsy-of-an-abdominal-or-deep-abdominal-mass"},{"code_type":"CPT","code":"49424","lay_name":"Contrast injection to check an existing drainage catheter","slug":"cpt-49424-contrast-injection-to-check-an-existing-drainage-catheter"},{"code_type":"CPT","code":"48102","lay_name":"Needle biopsy of the pancreas through the skin","slug":"cpt-48102-needle-biopsy-of-the-pancreas-through-the-skin"},{"code_type":"CPT","code":"91010","lay_name":"Esophagus muscle pressure study","slug":"cpt-91010-esophagus-muscle-pressure-study"},{"code_type":"CPT","code":"91035","lay_name":"Acid reflux test with a capsule attached to the lining","slug":"cpt-91035-acid-reflux-test-with-a-capsule-attached-to-the-lining"},{"code_type":"CPT","code":"91034","lay_name":"Acid reflux test with nasal tube pH probe","slug":"cpt-91034-acid-reflux-test-with-nasal-tube-ph-probe"},{"code_type":"CPT","code":"47543","lay_name":"Biopsy inside the bile ducts through the skin","slug":"cpt-47543-biopsy-inside-the-bile-ducts-through-the-skin"},{"code_type":"CPT","code":"49400","lay_name":"Injection of contrast or air into the abdominal cavity","slug":"cpt-49400-injection-of-contrast-or-air-into-the-abdominal-cavity"},{"code_type":"CPT","code":"91037","lay_name":"Esophagus reflux test with impedance probe, 1 hour or less","slug":"cpt-91037-esophagus-reflux-test-with-impedance-probe-1-hour-or-less"},{"code_type":"CPT","code":"91038","lay_name":"Esophagus reflux test with impedance probe, over 1 hour","slug":"cpt-91038-esophagus-reflux-test-with-impedance-probe-over-1-hour"},{"code_type":"CPT","code":"45990","lay_name":"Anal and rectal exam under anesthesia","slug":"cpt-45990-anal-and-rectal-exam-under-anesthesia"},{"code_type":"CPT","code":"91200","lay_name":"Liver stiffness scan (elastography) without imaging","slug":"cpt-91200-liver-stiffness-scan-elastography-without-imaging"}]}