Endometriosis of diaphragm, unspecified depth

This code signifies the presence of endometrial tissue abnormally located on the diaphragm, without further specification of how deeply the tissue has infiltrated the diaphragmatic muscle or surrounding structures. This condition can cause a range of symptoms, including catamenial chest pain, dyspnea, and shoulder pain, often worsening during menstruation.

Use this code when documentation confirms endometriosis affecting the diaphragm but lacks details regarding the depth of invasion (e.g., superficial vs. deep infiltrating). This diagnosis is typically made based on imaging findings, surgical visualization, or biopsy results. It is appropriate when the provider explicitly states "endometriosis of the diaphragm, unspecified depth" or similar phrasing.

• Do not use this code if the depth of diaphragmatic involvement is specified; instead, select a more specific code from the N80.B3- series.
• Always review operative reports and pathology findings for precise anatomical location and depth of infiltration.
• Consider sequencing this code after codes for other more severe or primary sites of endometriosis, if applicable.