{"code":"C51","type":"category","title":"Malignant neoplasm of vulva","codeAlso":[],"includes":["malignant neoplasm of skin of female genital organs"],"modern_v":"official26","codeFirst":[],"excludes1":["carcinoma in situ of vulva (D07.1)"],"excludes2":[],"isBillable":false,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":false,"billableFy2027":false},"sibling_codes":["C51.0","C51.1","C51.2","C51.8","C51.9"],"inclusionTerms":[],"sibling_titles":{"code":"C51.9","title":"Malignant neoplasm of vulva, unspecified","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Malignant neoplasm of vulva is a non-billable ICD-10-CM category code (C51). A more specific billable subcode must be selected for claims submission. Includes: malignant neoplasm of skin of female genital organs. Excludes1 (not coded here): carcinoma in situ of vulva (D07.1).","officialDefinition":"Malignant neoplasm of vulva is a non-billable ICD-10-CM category code (C51). A more specific billable subcode must be selected for claims submission. Includes: malignant neoplasm of skin of female genital organs. Excludes1 (not coded here): carcinoma in situ of vulva (D07.1).","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":[{"code":"C51.0","title":"Malignant neoplasm of labium majus","description":"Malignant neoplasm of labium majus is a billable ICD-10-CM diagnosis code (C51.0). Includes: malignant neoplasm of skin of female genital organs. Inclusion terms: Malignant neoplasm of Bartholin's [greater vestibular] gland. Excludes1 (not coded here): carcinoma in situ of vulva (D07.1).","isBillable":true,"slug":"c51.0-malignant-neoplasm-of-labium-majus"},{"code":"C51.1","title":"Malignant neoplasm of labium minus","description":"Malignant neoplasm of labium minus is a billable ICD-10-CM diagnosis code (C51.1). Includes: malignant neoplasm of skin of female genital organs. Excludes1 (not coded here): carcinoma in situ of vulva (D07.1).","isBillable":true,"slug":"c51.1-malignant-neoplasm-of-labium-minus"},{"code":"C51.2","title":"Malignant neoplasm of clitoris","description":"Malignant neoplasm of clitoris is a billable ICD-10-CM diagnosis code (C51.2). Includes: malignant neoplasm of skin of female genital organs. Excludes1 (not coded here): carcinoma in situ of vulva (D07.1).","isBillable":true,"slug":"c51.2-malignant-neoplasm-of-clitoris"},{"code":"C51.8","title":"Malignant neoplasm of overlapping sites of vulva","description":"Malignant neoplasm of overlapping sites of vulva is a billable ICD-10-CM diagnosis code (C51.8). Includes: malignant neoplasm of skin of female genital organs. Excludes1 (not coded here): carcinoma in situ of vulva (D07.1).","isBillable":true,"slug":"c51.8-malignant-neoplasm-of-overlapping-sites-of-vulva"},{"code":"C51.9","title":"Malignant neoplasm of vulva, unspecified","description":"Malignant neoplasm of vulva, unspecified is a billable ICD-10-CM diagnosis code (C51.9). Includes: malignant neoplasm of skin of female genital organs. Inclusion terms: Malignant neoplasm of external female genitalia NOS; Malignant neoplasm of pudendum. Excludes1 (not coded here): carcinoma in situ of vulva (D07.1).","isBillable":true,"slug":"c51.9-malignant-neoplasm-of-vulva-unspecified"}],"hierarchy":[],"relatedCodes":[],"relevantCPTCodes":[],"documentationTips":[],"caseStudies":[],"description":"","overview":""}