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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

What this means — in plain language

MedlinePlus · NIH

What are breast diseases? Breast diseases include various conditions and changes in your breast. Most women experience breast changes at some time. Your age, hormone levels, and medicines you take may cause lumps, bumps, and discharges of fluids that are not breast milk. Although many women fear cancer , most breast changes are benign, meaning they are not cancer. These breast changes are known as benign breast…

Read more about Breast Diseases at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

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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