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Coding for Excision of Benign or Malignant Lesions

This article reviews codes and guidelines for excision of skin lesions. For additional information about minor procedures, see the additional resources at the bottom of this page.

CPT® codes for excision

Excision of skin lesions are reported using codes from the integumentary section:

Excision of benign lesions: 11400—11471

  • Neoplasms
  • Cicatricial (scars)
  • Fibroma
  • Cutaneous lipoma
  • Inflammatory lesions
  • Congenital lesions
  • Cysts

Excision of malignant lesions: 11600—11646

  • Neoplasms of skin (e.g., basal cell CA, squamous cell CA, melanoma)

Key points

  • Select the code based on the size of the excision, not the lesion
  • The excision size is defined as the widest clinical diameter of the lesion and narrowest margin
  • Each lesion is reported separately, except two lesions adjacent to one another that are removed with the same excision
  • Document the size of the excision and the location
  • Wait for pathology to select the code

Closure after excision that requires more than simple closure is reported separately.

If the closure of the lesion is intermediate or complex described it in the procedure note. CPT® allows it to be reported; Medicare does not pay in addition to the excision.  Wait for pathology to select the code.

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Additional resources

  • Coding Guide – Minor Surgical Procedures

Watch Betsy’s 60 minute on-demand webinar “Coding Skin Procedures” for a review of coding common skin procedures and correct use of modifiers with multiple procedures. Webinars are free for members. Not a member? Find out how you can watch too!


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Last revised November 11, 2021 - Betsy Nicoletti
Tags: dermatology_procedures, minor procedures, primary care_procedures

CMS split/shared services

Questions about CMS split/shared services rule changes? In this quick reference sheet you'll learn what these services are, who can bill them, and where. And, information about "substantive portion" and selecting level of service for time vs. key components..

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Our mission is to provide accurate, comprehensive, up-to-date coding information, allowing medical practices to increase revenue, decrease coding denials and reduce compliance risk. That's what coding knowledge can do.

In 1988, CodingIntel.com founder Betsy Nicoletti started a Medical Services Organization for a rural hospital, supporting physician practice. She has been a self-employed consultant since 1998. She estimates that in the last 20 years her audience members number over 28,400 at in person events and webinars. She has had 2,500 meetings with clinical providers and reviewed over 43,000 medical notes. She knows what questions need answers and developed this resource to answer those questions. For more about Betsy visit www.betsynicoletti.com.

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