{"code":"C44.520","type":"code","title":"Squamous cell carcinoma of anal skin","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":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["C44","C44.0","C44.1","C44.101","C44.102","C44.1021","C44.1022","C44.109","C44.1091","C44.1092","C44.111","C44.112","C44.1121","C44.1122","C44.119","C44.1191","C44.1192","C44.121","C44.122","C44.1221","C44.1222","C44.129","C44.1291","C44.1292","C44.131","C44.132","C44.1321","C44.1322","C44.139","C44.1391","C44.1392","C44.191","C44.192","C44.1921","C44.1922","C44.199","C44.1991","C44.1992","C44.2","C44.201","C44.202","C44.209","C44.211","C44.212","C44.219","C44.221","C44.222","C44.229","C44.291","C44.292","C44.299","C44.3","C44.300","C44.301","C44.309","C44.310","C44.311","C44.319","C44.320","C44.321","C44.329","C44.390","C44.391","C44.399","C44.4","C44.5","C44.500","C44.501","C44.509","C44.510","C44.511","C44.519","C44.521","C44.529","C44.590"],"inclusionTerms":["Squamous cell carcinoma of anal margin","Squamous cell carcinoma of perianal skin"],"sibling_titles":{"code":"C44.590","title":"Other specified malignant neoplasm of anal skin","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Squamous cell carcinoma of anal skin is a billable ICD-10-CM diagnosis code (C44.520). Includes: malignant neoplasm of sebaceous glands; malignant neoplasm of sweat glands. Inclusion terms: Squamous cell carcinoma of anal margin; Squamous cell carcinoma of perianal skin. 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":"Squamous cell carcinoma of anal skin is a billable ICD-10-CM diagnosis code (C44.520). Includes: malignant neoplasm of sebaceous glands; malignant neoplasm of sweat glands. Inclusion terms: Squamous cell carcinoma of anal margin; Squamous cell carcinoma of perianal skin. 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":""}