N61Header code — not billable

Inflammatory disorders of breast

Chapter
14. Diseases of the genitourinary system
Category
N61
Effective date
October 1, 2026

Related codes in category N61

N61.0Mastitis without abscessYesN61.1Abscess of the breast and nippleYesN61.2Granulomatous mastitisN61.20Granulomatous mastitis, unspecified breastYesN61.21Granulomatous mastitis, right breastYesN61.22Granulomatous mastitis, left breastYesN61.23Granulomatous mastitis, bilateral breastYes

Frequently asked questions

What is ICD-10 code N61?

N61 is an ICD-10-CM diagnosis code for Inflammatory disorders of breast.

Is N61 a billable code?

No. N61 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is N61 in?

N61 falls under Chapter 14: Diseases of the genitourinary system.

When did N61 become effective?

N61 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to N61?

N61 belongs to category N61, which includes 7 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.