AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2025 Issue 3; Ask the Editor
Reduction of Breast for Asymmetry
A 76-year-old patient diagnosed with clinical stage I right breast cancer presented for right breast oncoplastic lumpectomy with reconstruction. Following the right lumpectomy with reconstruction, the breasts were asymmetrical; therefore, the left breast was reduced for symmetry. What diagnosis code is used to show that the left breast was asymmetrical? Code N65.1, Disproportion of reconstructed breast, does not seem appropriate since the left breast was not reconstructed. ...
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Article Overview
This premium coding article discusses how to approach diagnosis coding when breast asymmetry arises after breast-conserving surgery with reconstruction. It is intended for coders, billers, CDI staff, and reimbursement professionals who work with breast surgery, oncology, and reconstructive procedures. The article focuses on diagnosis selection considerations, the relationship between native and reconstructed breast anatomy, and why the case is relevant for accurate documentation support.
Why This Topic Matters
Breast symmetry cases after reconstruction can affect diagnosis reporting and claim accuracy. The article helps readers understand the documentation context and the coding framework discussed for this scenario.
What You Will Learn
- How breast asymmetry is discussed in the context of post-reconstruction coding
- How diagnosis code selection is framed for a breast symmetry scenario
- Why documentation context matters when one breast has been reconstructed and the other has not
- How breast cancer surgery and reconstructive care can influence coding questions
Who Should Read This
- Medical coders
- Coding auditors
- Clinical documentation integrity specialists
- Billing staff
- Revenue cycle professionals
Codes Discussed
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