Oncology & Hematology Coding Alert

Reader Questions:

Report Dermatofibrosarcoma protuberans with 239.2

Question: Our physician made a diagnosis of Dermatofibrosarcoma protuberans after a biopsy of excised tumor tissue. How can we report this diagnosis?

Virginia Subscriber

Answer: For the diagnosis of Dermatofibrosarcoma protuberans, ICD-9-CM Appendix A: Morphology of Neoplasms indicates that the condition’s morphology code is a histological type M8832 with a behavior code of 1 (which is defined as a neoplasm of uncertain behavior). Your question did not include the site of the tissue. If the tissue was excised from the skin, you submit ICD-9-CM code 238.2 (Neoplasm of uncertain behavior of skin). The fifth digit would be reported for the location of the tissue, Therefore, if the site was other than skin, check the ICD-9-CM subcategory for the correct designation.

The corresponding ICD-10 code is D48.5 (Neoplasm of uncertain behavior of skin).