2026 ICD-10-CM Diagnosis Code N65Deformity and disproportion of reconstructed breast

ICD-10-CM Codes›N00–N99›N60-N65›N65

ICD-10-CM N65
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N65 is a non-billable ICD-10-CM category code for deformity and disproportion of reconstructed breast, so it cannot be submitted on claims. Use a more specific code from this category instead, such as N65.0 and N65.1.

Code Identity

ICD-10-CM Code
N65
Billable Status
No — Non-Billable Category
Code Describes
Deformity and disproportion of reconstructed breast
Chapter
N60-N65
Disorders of breast

Code Classification

ChapterN00–N99Diseases of the genitourinary system
SectionN60-N65Disorders of breast
CategoryN65Deformity and disproportion of reconstructed breast
This CodeN65Deformity and disproportion of reconstructed breast

Specific Coding for Deformity and disproportion of reconstructed breastOverview

Non-specific codes like N65 require more characters. Use one of these billable codes instead:

  • Use N65.0 for Deformity of reconstructed breast

  • Use N65.1 for Disproportion of reconstructed breast

Patient EducationClinical

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.

The full article covers:

  • What are breast diseases?
  • What are the symptoms of breast disease?
  • How are breast diseases diagnosed?
  • What are the treatments for breast disease?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About N65Overview

Is N65 (Deformity and disproportion of reconstructed breast) a billable code?

No. This is a category header that groups the codes for deformity and disproportion of reconstructed breast, and headers cannot be submitted on claims. Claims for deformity and disproportion of reconstructed breast need a more specific code from this category, such as N65.0 and N65.1.