N64Header code — not billable
Other disorders of breast
- Chapter
- 14. Diseases of the genitourinary system
- Category
- N64
- Effective date
- October 1, 2026
Related codes in category N64
N64.0Fissure and fistula of nippleYesN64.1Fat necrosis of breastYesN64.2Atrophy of breastYesN64.3Galactorrhea not associated with childbirthYesN64.4MastodyniaYesN64.5Other signs and symptoms in breastN64.51Induration of breastYesN64.52Nipple dischargeYesN64.53Retraction of nippleYesN64.59Other signs and symptoms in breastYesN64.8Other specified disorders of breastN64.81Ptosis of breastYes
Frequently asked questions
What is ICD-10 code N64?
N64 is an ICD-10-CM diagnosis code for Other disorders of breast.
Is N64 a billable code?
No. N64 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 N64 in?
N64 falls under Chapter 14: Diseases of the genitourinary system.
When did N64 become effective?
N64 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to N64?
N64 belongs to category N64, which includes 12 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.