N61

Non-billable

Inflammatory disorders of breast

N61 is the ICD-10-CM code for Inflammatory disorders of breast. It is a non-billable category code — use a more specific child code such as N61.0 for billing.

Status
Header (non-billable)
Chapter
N00-N99
Subcodes
3
Edition
FY2026

N00-N99 Diseases of the genitourinary system

Excludes1 — not coded here

  • inflammatory carcinoma of breast (C50.A-)
  • inflammatory disorder of breast associated with childbirth (O91.-)
  • neonatal infective mastitis (P39.0)
  • thrombophlebitis of breast [Mondor's disease] (I80.8)

Frequently asked questions

What is ICD-10 code N61?
N61 is the ICD-10-CM code for "Inflammatory disorders of breast". It falls under N00-N99 Diseases of the genitourinary system.
Is N61 a billable code?
No — N61 is a non-billable header code. Use a more specific child code (such as N61.0) for billing.
What are the subcodes of N61?
N61 has 3 more specific child codes, including N61.0, N61.1, N61.2.
What is excluded from N61?
Excludes1 (not coded here): inflammatory carcinoma of breast (C50.A-); inflammatory disorder of breast associated with childbirth (O91.-); neonatal infective mastitis (P39.0); thrombophlebitis of breast [Mondor's disease] (I80.8).

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

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