ICD-10-CM N64: Other disorders of breast

ICD-10-CM Diagnosis Code (2025)

Official Description for N64

Other disorders of breast

Coding Notes & Guidelines for N64

Excludes1: Not Coded Here

abnormal findings in nipple discharge (R89.-)

Excludes1: Not Coded Here

ptosis of native breast in relation to reconstructed breast (N65.1)

Excludes1: Not Coded Here
  • congenital absence of breast (Q83.0)
  • hypoplasia of native breast in relation to reconstructed breast (N65.1)
Excludes2: Not Included Here

mechanical complication of breast prosthesis and implant (T85.4-)

Excludes2: Not Included Here

abnormal findings on diagnostic imaging of breast (R92.-)

Code First

breast necrosis due to breast graft (T85.898)

Inclusion Terms

Fat necrosis (segmental) of breast

Inclusion Terms

Micromastia

Inclusion Terms
  • Galactocele
  • Subinvolution of breast (postlactational)

Child Codes (More Specific Codes for N64):

N64.0 - Fissure and fistula of nipple N64.1 - Fat necrosis of breast N64.2 - Atrophy of breast N64.3 - Galactorrhea not associated with childbirth N64.4 - Mastodynia N64.5 - Other signs and symptoms in breast N64.51 - Induration of breast N64.52 - Nipple discharge N64.53 - Retraction of nipple N64.59 - Other signs and symptoms in breast N64.8 - Other specified disorders of breast N64.81 - Ptosis of breast N64.82 - Hypoplasia of breast N64.89 - Other specified disorders of breast N64.9 - Disorder of breast, unspecified

About ICD-10-CM Code N64 (Other disorders of breast)

ICD-10-CM code N64 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM N64 became effective on October 1, 2024.

This page provides detailed information about N64 - Other disorders of breast. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Other disorders of breast.