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Z17.0

Billable

Estrogen receptor positive status [ER+]

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

What This Code Means

A breast cancer tumor that has receptors for the hormone estrogen, meaning it grows in response to estrogen in the body.

Coding Tips

  • This is a hormone receptor status code used for breast cancer classification; code the underlying breast cancer diagnosis separately
  • ER+ status is important for treatment planning as these cancers may respond to hormone-blocking therapies

Code Hierarchy

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