170.1
ICD-9-CMThis code signifies the presence of a primary cancerous tumor originating in the mandible, which is the lower jaw bone. It indicates a malignant growth that has developed from the cells within the mandibular bone or its associated tissues.
Apply this code when documentation clearly states a primary malignant neoplasm of the mandible. This typically applies to cases of osteosarcoma, chondrosarcoma, or other primary bone cancers affecting the lower jaw. Supporting documentation would include pathology reports confirming malignancy and the specific site of origin.
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