In medicine, carcinoma is any cancer that arises from epithelial cells. It is malignant by definition: carcinomas invade surrounding tissues and organs, and may spread to lymph nodes and distal sites (metastasis). Carcinoma in situ (CIS) is a pre-malignant condition, in which cytological signs of malignancy are present, but there is no histological evidence of invasion through the epithelial basement membrane.

Classification of carcinoma
(8010-8790) Epithelial

(8010-8040) Epithelial neoplasms, NOS
(8050-8080) Squamous cell neoplasms

• (M8070/3) Squamous cell carcinoma, NOS
  (8090-8110) Basal cell neoplasms
  
  
  
  • (M8090/3) Basal cell carcinoma, NOS
    (8120-8130) Transitional cell Papillomas And Carcinomas
    (8140-8380) Adenomas And Adenocarcinomas (glands)
    
    
    
    • (M8140/0) Adenoma, NOS
      (M8140/3) Adenocarcinoma, NOS
      (M8142/3) Linitis plastica
      (M8151/0) Insulinoma, NOS
      (M8152/0) Glucagonoma, NOS
      (M8153/1) Gastrinoma, NOS
      (M8155/3) Vipoma
      (M8160/3) Cholangiocarcinoma
      (M8170/3) Hepatocellular carcinoma, NOS
      (M8200/3) Adenoid cystic carcinoma
      (M8240/1) Carcinoid tumor, NOS, of appendix
      (M8271/0) Prolactinoma
      (M8290/0) Oncocytoma
      (M8290/0) Hurthle cell adenoma
      (M8312/3) Renal cell carcinoma
      (M8312/3) Grawitz tumor
      (M8360/1) Multiple endocrine adenomas
      (M8380/0) Endometrioid adenoma, NOS
      (8390-8420) Adnexal And Skin appendage Neoplasms
      (8430-8439) Mucoepidermoid Neoplasms
      (8440-8490) Cystic, Mucinous And Serous Neoplasms
      
      
      
      • (M8440/0) Cystadenoma, NOS
        (M8480/6) Pseudomyxoma peritonei
        (8500-8540) Ductal, Lobular And Medullary Neoplasms
        (8550-8559) Acinar cell neoplasms
        (8560-8580) Complex epithelial neoplasms
        
        
        
        • (M8561/0) Warthin's tumor
          (M8580/0) Thymoma, NOS
          (8590-8670) Specialized gonadal neoplasms
          
          
          
          • (M8590/1) Sex cord-stromal tumor
            (M8600/0) Thecoma, NOS
            (M8620/1) Granulosa cell tumor, NOS
            (M8630/1) Arrhenoblastoma, NOS
            (M8631/0) Sertoli-Leydig cell tumor
            (8680-8710) Paragangliomas And Glomus tumors
            
            
            
            • (M8680/1) Paraganglioma, NOS
              (M8700/0) Pheochromocytoma, NOS
              (M8711/0) Glomus tumor
              (8720-8790) Nevi And Melanomas
              
              
              
              • (M8720/0) Melanocytic nevus
                (M8720/3) Malignant melanoma, NOS
                (M8720/3) Melanoma, NOS
                (M8721/3) Nodular melanoma
                (M8727/0) Dysplastic nevus
                (M8742/3) Lentigo maligna melanoma
                (M8743/3) Superficial spreading melanoma
                (M8744/3) Acral lentiginous melanoma, malignant