{"code":"Z17.3","type":"code","title":"Human epidermal growth factor 2 receptor","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":["malignant neoplasm, such as:","malignant neoplasm of breast (C50.-)","malignant neoplasm of ovary (C56.-)"],"excludes1":[],"excludes2":[],"isBillable":false,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":false,"billableFy2027":false},"sibling_codes":["Z17.31","Z17.32"],"inclusionTerms":[],"sibling_titles":{"code":"Z17.32","title":"Human epidermal growth factor receptor 2 negative status","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Human epidermal growth factor 2 receptor is a non-billable ICD-10-CM category code (Z17.3). A more specific billable subcode must be selected for claims submission. Code first: malignant neoplasm, such as:; malignant neoplasm of breast (C50.-); malignant neoplasm of ovary (C56.-).","officialDefinition":"Human epidermal growth factor 2 receptor is a non-billable ICD-10-CM category code (Z17.3). A more specific billable subcode must be selected for claims submission. Code first: malignant neoplasm, such as:; malignant neoplasm of breast (C50.-); malignant neoplasm of ovary (C56.-).","seventhCharacterInstructions":[],"workflowProtocols":[],"guidelines":{"whenToUse":[],"whenNotToUse":[],"commonBillingMistakes":[],"codeComparisons":[],"documentationChecklist":[]},"domainLandscape":{"summary":"Primary diagnostic domain and clinical landscape evaluation.","keyCategories":[],"diagnosticContinuum":"Progression continuum from acute presentation to resolution."},"children":[],"hierarchy":[],"relatedCodes":[],"relevantCPTCodes":[],"documentationTips":[],"caseStudies":[],"description":"","overview":"","noteProvenance":{"malignant neoplasm, such as:":"Z17","malignant neoplasm of breast (C50.-)":"Z17","malignant neoplasm of ovary (C56.-)":"Z17"},"hcc":{"mapped":false,"model":"CMS-HCC V28","paymentYear":"2026","categories":[],"otherModels":[]}}