2026 ICD-10-CM Diagnosis Code Q83Congenital malformations of breast

ICD-10-CM Codes›Q00-Q99›Q80-Q89›Q83

ICD-10-CM Q83
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Q83 is a non-billable ICD-10-CM category code for congenital malformations of breast, so it cannot be submitted on claims. Use a more specific code from this category instead, such as Q83.0, Q83.1, Q83.2, and Q83.3.

Code Identity

ICD-10-CM Code
Q83
Billable Status
No — Non-Billable Category
Code Describes
Congenital malformations of breast
Chapter
Q80-Q89
Other congenital malformations

Code Classification

ChapterQ00-Q99Congenital malformations, deformations and chromosomal abnormalities
SectionQ80-Q89Other congenital malformations
CategoryQ83Congenital malformations of breast
This CodeQ83Congenital malformations of breast

Specific Coding for Congenital malformations of breastOverview

Non-specific codes like Q83 require more characters. Use one of these billable codes instead:

  • Use Q83.0 for Congenital absence of breast with absent nipple

  • Use Q83.1 for Accessory breast

  • Use Q83.2 for Absent nipple

  • Use Q83.3 for Accessory nipple

  • Use Q83.8 for Other congenital malformations of breast

  • Use Q83.9 for Congenital malformation of breast, unspecified

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Type 2 Excludes

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 Q83Overview

Is Q83 (Congenital malformations of breast) a billable code?

No. This is a category header that groups the codes for congenital malformations of breast, and headers cannot be submitted on claims. Claims for congenital malformations of breast need a more specific code from this category, such as Q83.0, Q83.1, and Q83.2.