{"code":"C44.51","type":"code","title":"Basal cell carcinoma of skin of trunk","codeAlso":[],"includes":["malignant neoplasm of sebaceous glands","malignant neoplasm of sweat glands"],"modern_v":"official26","codeFirst":[],"excludes1":["anus NOS (C21.0)","scrotum (C63.2)","Kaposi's sarcoma of skin (C46.0)","malignant melanoma of skin (C43.-)","malignant neoplasm of skin of genital organs (C51-C52, C60.-, C63.2)","Merkel cell carcinoma (C4A.-)"],"excludes2":[],"isBillable":false,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":false,"billableFy2027":false},"inclusionTerms":[],"useAdditionalCode":[],"clinicalDefinition":"Basal cell carcinoma of skin of trunk is a non-billable ICD-10-CM category code (C44.51). A more specific billable subcode must be selected for claims submission. Includes: malignant neoplasm of sebaceous glands; malignant neoplasm of sweat glands. Excludes1 (not coded here): anus NOS (C21.0); scrotum (C63.2); Kaposi's sarcoma of skin (C46.0); malignant melanoma of skin (C43.-); malignant neoplasm of skin of genital organs (C51-C52, C60.-, C63.2); Merkel cell carcinoma (C4A.-).","officialDefinition":"Basal cell carcinoma of skin of trunk is a non-billable ICD-10-CM category code (C44.51). A more specific billable subcode must be selected for claims submission. Includes: malignant neoplasm of sebaceous glands; malignant neoplasm of sweat glands. Excludes1 (not coded here): anus NOS (C21.0); scrotum (C63.2); Kaposi's sarcoma of skin (C46.0); malignant melanoma of skin (C43.-); malignant neoplasm of skin of genital organs (C51-C52, C60.-, C63.2); Merkel cell carcinoma (C4A.-).","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":{"Kaposi's sarcoma of skin (C46.0)":"C44","malignant melanoma of skin (C43.-)":"C44","malignant neoplasm of skin of genital organs (C51-C52, C60.-, C63.2)":"C44","Merkel cell carcinoma (C4A.-)":"C44","malignant neoplasm of sebaceous glands":"C44","malignant neoplasm of sweat glands":"C44","anus NOS (C21.0)":"C44.5","scrotum (C63.2)":"C44.5"},"hcc":{"mapped":false,"model":"CMS-HCC V28","paymentYear":"2026","categories":[],"otherModels":[]}}