Is ICD-10-CM code N65 billable?

No, N65 (Deformity and disproportion of reconstructed breast) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code N65 belong to?

N65 belongs to Chapter 14 of the ICD-10-CM tabular list: N00–N99 (Diseases of the Genitourinary System).

N65Not billable, use a more specific code below

Deformity and disproportion of reconstructed breast

In Disorders of breast (N60-N65), chapter 14: Diseases of the Genitourinary System

2 billable codes under N65: none are a CC or MCC; none map to an HCC.

Instructional notes

Also applies, from Disorders of breast (N60-N65)

These notes sit on N60-N65 and apply to every code under it, including N65.

Excludes1: not coded here, use a different code

disorders of breast associated with childbirth (O91-O92)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers chronic kidney disease staging, CKD in kidney transplant patients, and sequencing CKD with related conditions such as diabetes and hypertension.

Chronic kidney disease (page 62)

Read Section I.C.14 (page 62)

All codes under N65

N65 can't be used on a claim. Pick a billable code below; grey headings group them.

N65 MS-DRGs

As the principal diagnosis, all 2 billable codes under N65 group to MS-DRG 600 or 601 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

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.

Breast Reconstruction

If you need a mastectomy, you have a choice about whether or not to have surgery to rebuild the shape of the breast. Instead of breast reconstruction, you could choose to wear a breast form that replaces the breast, wear padding inside your bra, or do nothing. All of these options have pros and cons. What is right for one woman may not be right for another.

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.