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N80.B5

Billable

Endometriosis of the mediastinal space

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

What This Code Means

Endometrial tissue (the lining of the uterus) grows abnormally in the mediastinal space, which is the area in the chest between the lungs.

Coding Tips

  • •This is a rare form of extrapelvic endometriosis; ensure documentation clearly specifies mediastinal involvement
  • •Verify imaging or surgical findings confirm mediastinal space location to differentiate from other thoracic endometriosis sites

Code Hierarchy

└N80Endometriosis└N80.BEndometriosis of cardiothoracic space└N80.B5Endometriosis of the mediastinal space
└N80.B5Endometriosis of the mediastinal space

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