II.1.3.4 Breast Ductal and Lobular Carcinomas

January 1, 2007 Forward

For cases diagnosed January 1, 2007 forward, apply the Multiple Primary and Histology Coding Rules for determining how many primaries are involved in breast tumors with ductal and lobular carcinoma. See 2007 Multiple Primary and Histology Coding Rules Manual.

For historic coding instructions, please click here.

 

 

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