N65.1 – Disproportion of reconstructed breast

ICD-10-CM 2027 diagnosis code · Disorders of breast

Billable code

ICD-10-CM code N65.1

Code: N65.1 (claims format: N651)
Description: Disproportion of reconstructed breast
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 14. Diseases of the genitourinary system (N00-N99)
Block: N60-N65 Disorders of breast
Parent codes: N65

Notes for N65.1

Applicable to:

Breast asymmetry between native breast and reconstructed breast
Disproportion between native breast and reconstructed breast

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Block N60-N65

Excludes1 (not coded here):

disorders of breast associated with childbirth (O91-O92)

Index terms for N65.1

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in N65

N65.0 – Deformity of reconstructed breastBillable

Frequently asked questions

What is ICD-10 code N65.1?

N65.1 is the ICD-10-CM code for disproportion of reconstructed breast, in the block N60-N65 (Disorders of breast).

Is N65.1 a billable code?

Yes. N65.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does N65.1 belong to?

It belongs to category N65 – Deformity and disproportion of reconstructed breast.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.