Reader Question: Base Lesion Coding Size on Surgeon's Measurement

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Note:  The following article synopsis was NOT provided by AAPC. It was created by Find-A-Code/innoviHealth.

Article Overview

This reader Q&A addresses how to approach skin lesion excision coding when the pathology report and the surgeon’s operative note do not provide the same information. It discusses the relationship between CPT excision sizing, operative documentation, pathology findings, and benign-versus-malignant code selection. The article is aimed at coding professionals who need to understand what source document supports lesion size and what source document supports the final excision code category.

Why This Topic Matters

Accurate lesion excision coding depends on using the right source for size and diagnosis, which can affect code choice and reimbursement. The article helps coding staff and billers understand the documentation needed to avoid undercoding or relying on pathology measurements inappropriately.

What You Will Learn

  • How operative documentation and pathology reports each contribute to lesion excision coding
  • How CPT-based excision sizing is generally determined
  • How pathology findings affect benign-versus-malignant excision code selection
  • Why documentation of lesion measurements in the operative note matters for coding accuracy

Who Should Read This

  • Medical coders
  • Coding auditors
  • Billing staff
  • Physician practice administrators
  • Dermatology coding professionals

Codes Discussed


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