{"code":"C83.01","type":"code","title":"Small cell B-cell lymphoma, lymph nodes of head, face, and neck","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["chronic lymphocytic leukemia (C91.1)","mature T/NK-cell lymphomas (C84.-)","Waldenström macroglobulinemia (C88.00)","personal history of non-Hodgkin lymphoma (Z85.72)"],"excludes2":["Kaposi's sarcoma of lymph nodes (C46.3)","secondary and unspecified neoplasm of lymph nodes (C77.-)","secondary neoplasm of bone marrow (C79.52)","secondary neoplasm of spleen (C78.89)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"inclusionTerms":[],"useAdditionalCode":[],"clinicalDefinition":"Small cell B-cell lymphoma, lymph nodes of head, face, and neck is a billable ICD-10-CM diagnosis code (C83.01). Excludes1 (not coded here): chronic lymphocytic leukemia (C91.1); mature T/NK-cell lymphomas (C84.-); Waldenström macroglobulinemia (C88.00); personal history of non-Hodgkin lymphoma (Z85.72). Excludes2 (not included here): Kaposi's sarcoma of lymph nodes (C46.3); secondary and unspecified neoplasm of lymph nodes (C77.-); secondary neoplasm of bone marrow (C79.52); secondary neoplasm of spleen (C78.89).","officialDefinition":"Small cell B-cell lymphoma, lymph nodes of head, face, and neck is a billable ICD-10-CM diagnosis code (C83.01). Excludes1 (not coded here): chronic lymphocytic leukemia (C91.1); mature T/NK-cell lymphomas (C84.-); Waldenström macroglobulinemia (C88.00); personal history of non-Hodgkin lymphoma (Z85.72). Excludes2 (not included here): Kaposi's sarcoma of lymph nodes (C46.3); secondary and unspecified neoplasm of lymph nodes (C77.-); secondary neoplasm of bone marrow (C79.52); secondary neoplasm of spleen (C78.89).","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":""}