N65.1 Disproportion of reconstructed breast
The ICD-10-CM code for Disproportion of reconstructed breast is N65.1 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- N60-N65: Disorders of breast (N60-N65)
- Category N65
- 3 codes (2 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to N65.1:
- Disproportion › between native and reconstructed breast
- Asymmetry › between native and reconstructed breast
- Complication (s) (from) (of) › reconstructed breast › asymmetry between native and reconstructed breast
- Complication (s) (from) (of) › reconstructed breast › disproportion between native and reconstructed breast
Inclusion Terms
- Breast asymmetry between native breast and reconstructed breast
- Disproportion between native breast and reconstructed breast
U.S. Hospital Utilization
- An estimated 715 U.S. inpatient stays in 2023 included N65.1 among the documented diagnoses.
- 355 stays listed it as the principal diagnosis.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
Official Coding Guidelines
CKD staging and code assignment (N18.-)The ICD-10-CM classifies CKD based on severity. The severity of CKD is designated by stages 1-5. Stage 2, code N18.2, equates to mild CKD; stage 3, codes N18.30-N18.32, equate to moderate CKD; and stage 4, code N18.4, equates to severe CKD. Code N18.6, End stage renal disease (ESRD), is assigned when the provider has documented end- stage renal disease (ESRD).
CKD stage plus ESRD: assign N18.6 onlyIf both a stage of CKD and ESRD are documented, assign code N18.6 only.
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026