N64

Non-billable

Other disorders of breast

N64 is the ICD-10-CM code for Other disorders of breast. It is a non-billable category code — use a more specific child code such as N64.0 for billing.

Status
Header (non-billable)
Chapter
N00-N99
Subcodes
8
Edition
FY2026

N00-N99 Diseases of the genitourinary system

Excludes2 — not included here

  • mechanical complication of breast prosthesis and implant (T85.4-)

Frequently asked questions

What is ICD-10 code N64?
N64 is the ICD-10-CM code for "Other disorders of breast". It falls under N00-N99 Diseases of the genitourinary system.
Is N64 a billable code?
No — N64 is a non-billable header code. Use a more specific child code (such as N64.0) for billing.
What are the subcodes of N64?
N64 has 8 more specific child codes, including N64.0, N64.1, N64.2.

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

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