11400
Excision of Benign Lesion Including Margins, Trunk, Arms, or Legs (0.5 cm or Less)
Code Description
CPT code 11400 is used to report the surgical excision of a benign skin lesion located on the trunk, arms, or legs when the excised diameter is 0.5 centimeters or less.
Unlike a biopsy, this procedure removes the lesion with the intent of treatment or complete removal.When to Use 11102
Common examples include:
suspicious skin lesions
changing moles
abnormal skin growths
evaluation of possible skin cancer
When to Use 11400
Common examples include:
benign skin growths
noncancerous lesions
irritated moles
cosmetic lesion removal
Documentation Requirements
Documentation should include:
lesion location
lesion size
excised diameter
surgical technique
pathology submission if applicable
Common Billing Mistakes
Common billing mistakes include:
using the wrong lesion size code
confusing biopsy and excision codes
failing to document margins
incorrect anatomical site selection
Related CPT Codes
11401- Benign Lesion Excision 0.6 to 1.0 cm
11600- Excision of Malignant Lesion
FAQ
What is CPT code 11400?
CPT 11400 describes excision of a benign lesion measuring 0.5 cm or less.
Is this a biopsy?
No. The lesion is removed rather than sampled.
Does lesion size matter?
Yes. Excision codes are selected based on lesion size and location.






Procedure Type
Lesion Excision
Lesion Type
Size
Benign
0.5 or less


