ICD-10-CM FY2027 diagnosis code

N64.8: Other specified disorders of breast

Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027

N64.8 groups related diagnoses under other specified disorders of breast. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.

Billable codes under N64.8

N64.81Ptosis of breast
N64.82Hypoplasia of breast
N64.89Other specified disorders of breast

Other codes in N64 Other disorders of breast

N64.0Fissure and fistula of nipple
N64.1Fat necrosis of breast
N64.2Atrophy of breast
N64.3Galactorrhea not associated with childbirth
N64.4Mastodynia
N64.5Other signs and symptoms in breastheader
N64.9Disorder of breast, unspecified

N64.8 questions

Is N64.8 a billable code?

No. N64.8 is a header code that groups 3 more specific codes. Use one of the billable codes listed on this page instead.

What does N64.8 mean?

N64.8 is the ICD-10-CM code for Other specified disorders of breast. It is in chapter 14, Diseases of the genitourinary system (N00-N99).

Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.