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N80.B31

Billable

Superficial endometriosis of diaphragm

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

What This Code Means

Endometrial tissue is growing on the surface of the diaphragm (the muscle that controls breathing), without deep penetration into the muscle.

Coding Tips

  • •The 'superficial' designation indicates the endometriosis does not deeply infiltrate the diaphragm
  • •Ensure documentation specifies superficial involvement; if depth is unclear, use N80.B39

Code Hierarchy

└N80Endometriosis└N80.BEndometriosis of cardiothoracic space└N80.B3Endometriosis of diaphragm└N80.B31Superficial endometriosis of diaphragm
└N80.B31Superficial endometriosis of diaphragm

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