Non-Billable / Non-Specific Code
ICD-10-CM N80.B is the diagnosis code for Endometriosis of cardiothoracic space. This code falls under the section "Noninflammatory disorders of female genital tract" within Chapter 14 — Diseases of the genitourinary system (N00-N99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where N80.B sits in the ICD-10-CM classification helps ensure proper coding:
No, N80.B is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
N80.B is the ICD-10-CM diagnosis code for "Endometriosis of cardiothoracic space". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of N80.B is N80 ("Endometriosis"). N80.B provides a more specific classification within this category.
N80.B is located in Section N80-N98 — "Noninflammatory disorders of female genital tract" within Chapter 14 of the ICD-10-CM Tabular List.
N80.B has 6 sub-code(s) that provide more specific detail: N80.B1, N80.B2, N80.B3, N80.B4, N80.B5 and more.
Use N80.B when the patients documented diagnosis matches "Endometriosis of cardiothoracic space" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Endometriosis of cardiothoracic space is N80.B.
No, N80.B is non-billable. Use a more specific sub-code for primary diagnosis billing.
N80.B is in Chapter 14 of the ICD-10-CM Tabular List.
Yes, N80.B is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.