N80.B
ICD-10Non-billable categoryEndometriosis of cardiothoracic space
Official ICD-10-CM descriptor (FY2026)
Endometriosis of cardiothoracic space
N80.B is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Inclusion terms
- Endometriosis of thorax
Code also
Two codes may be needed; sequencing depends on the reason for the encounter.
- , if applicable:
- catamenial hemothorax (J94.2)
- catamenial pneumothorax (J93.12)
ICD-10-CM FY2026 defines 6 codes beneath N80.B. See the ICD-10-CM index for what this site publishes.
Related codes in N80
- N80.0Endometriosis of uteruscategory
- N80.1Endometriosis of ovarycategory
- N80.2Endometriosis of fallopian tubecategory
- N80.3Endometriosis of pelvic peritoneumcategory
- N80.4Endometriosis of rectovaginal septum and vaginacategory
- N80.5Endometriosis of intestinecategory
- N80.6Endometriosis in cutaneous scar
- N80.AEndometriosis of bladder and ureterscategory
- N80.CEndometriosis of the abdomencategory
- N80.DEndometriosis of the pelvic nervescategory
- N80.8Other endometriosis
- N80.9Endometriosis, unspecified
Where this code sits
- Parent code
- N80
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.