You may need to track primary and secondary site ICD-9s for cancer

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Note:  The following article synopsis was NOT provided by HCPro. It was created by Find-A-Code/innoviHealth.

Article Overview

This short coding article discusses how neoplasm claims may require tracking both primary and secondary cancer sites under ICD-9-CM. It is aimed at coding and billing professionals, especially in specialty practices that see metastatic disease, and it highlights why site selection and diagnosis placement on a claim can matter without providing a full coding policy. The piece also references guidance from coding professionals and a physician-practice management organization.

Why This Topic Matters

Accurate identification of primary versus secondary cancer sites affects claim clarity and can influence how diagnoses are represented for patients with metastatic disease.

What You Will Learn

  • How ICD-9-CM distinguishes broad categories of malignant neoplasms
  • Why cancer cases may involve more than one diagnosis site on a claim
  • Why metastatic disease creates special documentation and reporting considerations
  • How specialty practices may approach primary and secondary cancer site reporting at a high level

Who Should Read This

  • Medical coders
  • Billing staff
  • Cancer registry staff
  • Physician practice managers
  • Urology practice staff

Codes Discussed

Code Ranges Discussed

  • ICD-9-CM: 140-195
  • ICD-9-CM: 196-198

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