N80.21

Non-billable

Superficial endometriosis of fallopian tube

N80.21 is the ICD-10-CM code for Superficial endometriosis of fallopian tube. It is a non-billable category code — use a more specific child code such as N80.211 for billing.

Status
Header (non-billable)
Chapter
N00-N99
Parent
N80.2
Subcodes
4
Edition
FY2026

N00-N99 Diseases of the genitourinary system

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code N80.21?
N80.21 is the ICD-10-CM code for "Superficial endometriosis of fallopian tube". It falls under N00-N99 Diseases of the genitourinary system.
Is N80.21 a billable code?
No — N80.21 is a non-billable header code. Use a more specific child code (such as N80.211) for billing.
What are the subcodes of N80.21?
N80.21 has 4 more specific child codes, including N80.211, N80.212, N80.213.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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