Pathology/Lab Coding Alert

You Be the Coder:

Stick With Ovarian Cancer Dx

Question: The pathologist examined a specimen that was a 6.7 x 4.8 x 3.3 cm pelvic mass attached to fallopian tube. The surgeon removed the mass for "debulking of recurrent ovarian cancer," and the pathology report confirms ovarian cancer. What is the correct ICD-10 code for this case?

Maine Subscriber

Answer: Despite association of the mass with the fallopian tube, or the surgeon describing the specimen as a "pelvic mass," you should code the mass based on the diagnosis.

That means the correct code is one of the following, depending on the cancer location:

  • C56.1 (Malignant neoplasm of right ovary)
  • C56.2 (... left ovary)
  • C56.9 (... unspecified ovary).

Because this is a recurrent cancer at the initial site, you should not use a code for metastatic cancer from a distant site.