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Table 1 WHO classification and SNOMED codes of primary bone tumours [3]

From: Guidelines for histopathological specimen examination and diagnostic reporting of primary bone tumours

Cartilage tumours Giant cell tumours
Osteochondroma 9210/0* Giant cell tumour 9250/1
Chondroma 9220/0 Malignancy in giant cell tumour 9250/3
   Enchondroma 9220/0   
   Periosteal chondroma 9221/0   
   Multiple chondromatosis 9220/1 Notochordal tumours  
Chondroblastoma 9230/0 Chordoma 9370/3
Chondromyxoid fibroma 9241/0   
Chondrosarcoma 9220/3   
   Central, 1° and 2° 9220/3 Vascular tumours  
   Peripheral 9221/3 Haemangioma 9120/0
   Dedifferentiated 9243/3 Angiosarcoma  
   Mesenchymal 9240/3   
   Clear cell 9242/3   
   Smooth muscle tumours  
   Leiomyoma 8890/0
Osteogenic tumours    
Osteoid osteoma 9191/0   
Osteoblastoma 9200/0   
Osteosarcoma 9180/3 Lipogenic tumours  
   Conventional 9180/3 Lipoma 8850/0
Chondroblastic 9181/3 Liposarcoma 8850/3
Fibroblastic 9182/3   
Osteoblastic 9180/3   
Telangiectatic 9183/3 Neural tumours  
Small cell 9185/3 Neurilemmoma 9560/0
Low grade central 9187/3   
Secondary 9180/3   
Parosteal 9192/3 Miscellaneous tumours  
Periosteal 9193/3 Adamantinoma 9261/3
High grade surface 9194/3 Metastatic malignancy  
Fibrogenic tumours   Miscellaneous lesions  
Desmoplastic fibroma 88230 Aneurysmal bone cyst 33640
Fibrosarcoma 88103 Simple cyst 33400
   Fibrous dysplasia 74910
   Osteofibrous dysplasia 92620
Fibrohistiocytic tumours   Langerhans cell histiocytosis 97511
Benign fibrous histiocytoma 8830/0 Erdheim-Chester disease 77920
Malignant fibrous histiocytoma 8830/3 Chest wall hamartoma 75580
Ewing sarcoma    
Ewing sarcoma 9260/3   
Haematopoietic tumours    
Plasma cell myeloma 9732/3   
Malignant lymphoma, NOS 9590/3