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Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.", "formula": "acc_aha_hf", "formula_expression": "hf_stage D if refractory_hf_specialized; else C if structural_heart_disease and hf_symptoms_prior_or_current; else B if structural_heart_disease and not hf_symptoms_prior_or_current; else A if high_risk_for_hf and not structural_heart_disease and not hf_symptoms_prior_or_current; else not_staged (Yancy 2013 ACCF/AHA stages, progressive/inviolate). 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Not NYHA class", "hf_stage": "not_staged", "hf_symptoms_prior_or_current": false, "high_risk_for_hf": false, "refractory_hf_specialized": false, "structural_heart_disease": false } ], "path": "/api/calc/acc_aha_hf" }, "type": "json" } }, "schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "properties": { "input": { "additionalProperties": false, "properties": { "body": { "additionalProperties": false, "properties": { "items": { "items": { "properties": { "hf_symptoms_prior_or_current": { "description": "Prior or current symptoms of HF as assigned by the caller (Yancy 2013 stage C). true or false. magent does not examine the patient.", "type": "boolean" }, "high_risk_for_hf": { "description": "High risk for HF without structural heart disease or HF symptoms (Yancy 2013 stage A assignment). true or false as assigned by the caller. magent does not examine the patient.", "type": "boolean" }, "refractory_hf_specialized": { "description": "Refractory HF requiring specialized interventions as assigned by the caller (Yancy 2013 stage D). true or false. magent does not examine the patient.", "type": "boolean" }, "structural_heart_disease": { "description": "Structural heart disease as assigned by the caller (Yancy 2013 stage B or C). true or false. magent does not read an echocardiogram.", "type": "boolean" } }, "required": [ "high_risk_for_hf", "structural_heart_disease", "hf_symptoms_prior_or_current", "refractory_hf_specialized" ], "type": "object" }, "maxItems": 25, "minItems": 1, "type": "array" } }, "required": [ "items" ], "type": "object" }, "headers": { "additionalProperties": { "type": "string" }, "type": "object" }, "method": { "const": "POST", "type": "string" }, "type": { "const": "http", "type": "string" } }, "required": [ "type", "method" ], "type": "object" }, "output": { "properties": { "example": { "type": "object" }, "type": { "type": "string" } }, "required": [ "type" ], "type": "object" } }, "required": [ "input" ], "type": "object" } } }, "tags": [ "acc-aha-hf", "heart-failure", "hemodynamics", "staging", "calculator", "bazaar" ], "sourceHost": "api.magentlab.com", "lastUpdated": "2026-10-12T23:16:37.085Z", "quality": { "calls30d": 5, "uniquePayers30d": 2, "lastCalledAt": "2026-10-12T23:16:36.925Z" }, "metadata": { "serviceName": "magent", "extensions": { "bazaar": { "info": { "iconUrl": "https://api.magentlab.com/favicon.ico", "input": { "body": { "items": [ { "hf_symptoms_prior_or_current": false, "high_risk_for_hf": false, "refractory_hf_specialized": false, "structural_heart_disease": false }, { "hf_symptoms_prior_or_current": false, "high_risk_for_hf": false, "refractory_hf_specialized": false, "structural_heart_disease": false } ] }, "method": "POST", "type": "http" }, "output": { "example": { "count": 2, "items": [ { "citation": { "authors": "Yancy CW, Jessup M, Bozkurt B, Butler J, Casey DE Jr, Drazner MH, Fonarow GC, Geraci SA, Horwich T, Januzzi JL, Johnson MR, Kasper EK, Levy WC, Masoudi FA, McBride PE, McMurray JJV, Mitchell JE, Peterson PN, Riegel B, Sam F, Stevenson LW, Tang WHW, Tsai EJ, Wilkoff BL", "doi": "10.1161/CIR.0b013e31829e8776", "id": "yancy-2013", "pmid": "23741058", "source": "Circulation. 2013;128(16):e240-e327", "title": "2013 ACCF/AHA guideline for the management of heart failure: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines" }, "components": [ { "factor": "high_risk_for_hf", "met": false }, { "factor": "structural_heart_disease", "met": false }, { "factor": "hf_symptoms_prior_or_current", "met": false }, { "factor": "refractory_hf_specialized", "met": false } ], "disclaimer": "Not a medical device. 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