ref":"b0_3","title":"Accelerated Immunotherapy Schedules"},{
citations":["32","33"],"intro":"Contested/limited evidence","nodes":["{\"operator\":\"all\",\"n\":0,\"label\":\"Sublingual liquid antigen extract drops\",\"text\":\"Standardized and non‑standardized sublingual antigen extract liquid drop immunotherapy preparations have mixed and limited evidence; no FDA‑approved liquid drop preparations exist in the U.S., and professional societies do not endorse off‑label liquid drop formulations for routine use.\",\"threshold\":\"\",\"note\":\"SLIT tablet products may be covered under separate pharmacy/drug policies; off‑label liquid drops are not endorsed and require strong justification if proposed.\",\"children\":[]}"] ,"ref":"b0_4","title":"Sublingual Antigen Extract Drop Immunotherapy"},{
citations":["22","23","24","25"],"intro":"When testing for metal allergy related to implants may be considered","nodes":["{\"operator\":\"any\",\"n\":0,\"label\":\"Metal allergy testing for arthroplasty patients\",\"text\":\"Routine preoperative metal allergy testing prior to joint implantation is not established and is not recommended. Consider patch testing or in vitro testing only for patients with a history of severe localized (e.g., blistering, hives, extensive rash) or systemic cutaneous reactions to metals, or for patients with prior implant complications suspected to be caused by metal allergy after excluding infection and mechanical failure. Positive testing may guide avoidance of specific metals when clinically relevant.\",\"threshold\":\"\",\"note\":\"Testing has limited predictive value for implant outcomes in the general population; document exclusion of other etiologies before attributing symptoms to metal allergy.\",\"children\":[]}"] ,"ref":"b0_5","title":"Metal Allergy/Hypersensitivity Testing for Arthroplasty"},{
citations":["26","27"],"intro":"Experimental / insufficient evidence","nodes":["{\"operator\":\"all\",\"n\":0,\"label\":\"Bead‑Based Epitope Assay (BBEA) for food allergy\",\"text\":\"Bead‑based epitope assays (BBEA) measure IgE/IgG4 reactivity to discrete allergen epitopes and have been proposed for diagnosis and monitoring of food allergies; however, published evidence is limited to cohort and comparative case‑control studies with small sample sizes and lacks rigorous trials demonstrating improved clinical outcomes versus existing modalities. BBEA is considered investigational/experimental pending stronger outcome data.\",\"threshold\":\"\",\"note\":\"Not covered until sufficient evidence of clinical benefit is available.\",\"children\":[]}"] ,"ref":"b0_6","title":"Bead-Based Epitope Assay (BBEA)"},{
citations":["42","46"],"intro":"Testing and treatment considered medically necessary when applicable policy criteria are met","nodes":["{\"operator\":\"all\",\"n\":0,\"label\":\"General medical necessity\",\"text\":\"Diagnostic testing (in vivo skin tests, in vitro specific IgE assays, challenge testing) and treatment (professional allergen immunotherapy services) are considered medically necessary when the specific clinical criteria in the applicable policy statements are met.\",\"threshold\":\"\",\"note\":\"Refer to the detailed policy statements above for condition‑specific criteria and to coding thresholds for frequency/dose limits.\",\"children\":[]}"] ,"ref":"b0_7","title":"Medical necessity — Testing and Treatment"}]})}}reamble malformed due to assistant output error. Please fix.