Radiology Coding Alert

Be sure documentation clearly helps you choose between C79.51 and C79.52.

If your practice provides imaging of bone metastases, take note: ICD-10 will double your coding options.

ICD-9: Under ICD-9 2011, you report 198.5 (Secondary malignant neoplasm of other specified sites; bone and bone marrow) to indicate the confirmed presence of cancer that has spread from a different (primary) site to the bones or bone marrow.

ICD-10: The new codeset, planned to take effect Oct. 1, 2013, will offer two distinct codes for this diagnosis:

• C79.51, Secondary malignant neoplasm of bone
• C79.52, Secondary malignant neoplasm of bone marrow.

Documentation: The switch to two separate codes means that clear confirmation of whether the bone or bone marrow is involved will be crucial to your ability to choose the proper code.

Coder tip: Both ICD-9 and ICD-10 provide alternate codes for secondary neuroendocrine tumors. Under ICD-9, you use 209.73 (Secondary neuroendocrine tumor of bone). ICD-10 includes C7B.03 (Secondary carcinoid tumors of bone). Both ICD-9 and ICD-10 instruct you to use an additional code to provide more information on the diagnosis.

Remember: When ICD-10 goes into effect on Oct. 1, 2013, you should apply the code set and official guidelines in effect for the date of service reported. Learn more at www.cms.gov/ICD10/ and www.cdc.gov/nchs/icd/icd10cm.htm#10update.