Malignant neoplasm of spleen, not elsewhere classified

This code signifies a primary cancerous tumor originating in the spleen that is not specifically categorized by other, more precise codes. It indicates a malignant growth within the splenic tissue itself, rather than a metastatic lesion from another primary site.

Use this code when documentation clearly states a primary malignant neoplasm of the spleen and no more specific ICD-9 code is available. This typically applies to rare primary splenic lymphomas or sarcomas where the spleen is the initial site of malignancy.

• Ensure documentation specifies "primary" malignant neoplasm of the spleen; otherwise, consider codes for secondary or unspecified splenic malignancy.
• Do not use for metastatic disease to the spleen; refer to codes for secondary malignant neoplasm of the spleen (e.g., 197.8).
• Always review pathology reports for definitive diagnosis and specific tumor type, as more precise codes may exist for specific lymphomas or sarcomas.