2D40-2D4Z block
Malignant neoplasms of ill-defined or unspecified primary sites
Exclusions
7 subordinate codes
2D40Adenocarcinoma of unspecified site2D41Unspecified carcinoma of unspecified site2D42Malignant neoplasms of ill-defined sites2D43Malignant neoplasms of independent, multiple primary sites2D44Malignant neoplasm, primary site unknown, so stated4B4YOther specified diseases of the immune system4B4ZDiseases of the immune system, unspecified