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Z17.32

Billable

Human epidermal growth factor receptor 2 negative status

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A status code indicating that cancer cells tested negative for HER2 (human epidermal growth factor receptor 2), which affects treatment planning.

Coding Tips

  • Use this code when HER2 testing has been completed and results are negative
  • Patients with HER2-negative status are not candidates for HER2-targeted therapies

Code Hierarchy

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