Malignant neoplasm of right fallopian tube

This code identifies a primary cancerous tumor originating in the right fallopian tube. It signifies the presence of malignant cells within the tissue of the right oviduct.

Apply this code when documentation confirms a primary malignant neoplasm located specifically in the right fallopian tube. This is supported by pathology reports, operative notes, or imaging studies explicitly identifying the tumor's laterality and malignancy.

• Ensure documentation specifies "right" fallopian tube; otherwise, an unspecified laterality code may be more appropriate.
• Distinguish from secondary (metastatic) neoplasms of the fallopian tube, which are coded differently.
• Sequence this code as the primary diagnosis when it is the reason for the encounter or treatment.