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H95.133

Billable

Mucosal cyst of postmastoidectomy cavity, bilateral ears

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

What This Code Means

Fluid-filled sacs (mucosal cysts) forming in both ear canals after mastoid surgery.

Coding Tips

  • Bilateral presentation may indicate a systemic response to the surgical procedure
  • Monitor for symptoms such as drainage, hearing loss, or ear fullness

Code Hierarchy

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