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Official Description

Excision, benign lesion including margins, except skin tag (unless listed elsewhere), trunk, arms or legs; excised diameter over 4.0 cm

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Common Language Description

The CPT® Code 11406 refers to the excision of a benign lesion, which is a non-cancerous growth, from the trunk, arms, or legs, specifically when the excised diameter exceeds 4.0 cm. This procedure is performed to remove lesions that may cause discomfort, cosmetic concerns, or have the potential for complications. Common types of benign lesions that may be excised include lipomas, which are fatty tumors; dermatofibromas, which are fibrous skin growths; pyogenic granulomas, which are small, red, and raised lesions; epidermoid cysts, which are small bumps beneath the skin; and benign nevi, commonly known as moles. During the procedure, the area surrounding the lesion is thoroughly cleansed, and a local anesthetic is administered to minimize discomfort. A careful assessment is made to identify a narrow margin of healthy tissue surrounding the lesion, which is crucial for ensuring complete removal and reducing the risk of recurrence. A full-thickness incision is then made through the dermis, encircling the lesion to excise it completely. The excised tissue is typically sent to a laboratory for histologic evaluation, which is a separate reportable service that assesses the tissue for any abnormalities. To manage any bleeding that may occur during the excision, electrocautery or chemical cautery techniques are employed. After the lesion is removed, the surgical wound may be closed using a simple single-layer suture technique. However, depending on the complexity of the wound, other closure methods such as intermediate (layer) closure, complex repair, skin grafts, or pedicle flaps may also be utilized. This code is specifically designated for lesions with an excised diameter greater than 4.0 cm, distinguishing it from other codes that apply to smaller excised diameters.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 11406 is indicated for the excision of benign lesions located on the trunk, arms, or legs. The specific indications for performing this procedure include:

  • Benign Lesions: The presence of non-cancerous growths such as lipomas, dermatofibromas, pyogenic granulomas, epidermoid cysts, and benign nevi that require removal due to size, discomfort, or cosmetic reasons.
  • Lesion Size: The excised diameter of the lesion must exceed 4.0 cm, necessitating the use of this specific CPT® code for accurate billing and documentation.
  • Potential Complications: Lesions that may pose a risk of complications or discomfort to the patient, warranting surgical intervention for removal.

2. Procedure

The procedure for excising a benign lesion as described by CPT® Code 11406 involves several critical steps:

  • Preparation: The area surrounding the lesion is first cleansed thoroughly to reduce the risk of infection. A local anesthetic is then injected to ensure the patient remains comfortable throughout the procedure.
  • Identification of Margins: A narrow margin of healthy tissue surrounding the lesion is identified. This step is essential to ensure complete excision of the lesion and to minimize the risk of recurrence.
  • Incision: A full-thickness incision is made through the dermis, carefully encircling the lesion. This incision allows for the complete removal of the lesion along with the surrounding healthy tissue.
  • Excision: The entire lesion is excised from the skin, ensuring that all abnormal tissue is removed. The excised tissue is then sent to a laboratory for histologic evaluation, which is a separate reportable service.
  • Hemostasis: Any bleeding that occurs during the excision is controlled using electrocautery or chemical cautery techniques, which help to minimize blood loss and promote a clean surgical field.
  • Closure: After the lesion has been removed, the surgical wound may be closed using a simple single-layer suture technique. Depending on the complexity of the wound, other closure methods such as intermediate (layer) closure, complex repair, skin grafts, or pedicle flaps may also be employed to ensure proper healing.

3. Post-Procedure

Post-procedure care following the excision of a benign lesion includes monitoring the surgical site for signs of infection, ensuring proper wound care, and managing any discomfort the patient may experience. Patients are typically advised on how to care for the incision site, including keeping it clean and dry, and may be given instructions on when to return for suture removal if applicable. Follow-up appointments may be necessary to assess healing and to discuss the results of the histologic evaluation of the excised tissue.

Short Descr EXC TR-EXT B9+MARG >4.0 CM
Medium Descr EXC B9 LESION MRGN XCP SK TG T/A/L >4.0 CM
Long Descr Excision, benign lesion including margins, except skin tag (unless listed elsewhere), trunk, arms or legs; excised diameter over 4.0 cm
Status Code Active Code
Global Days 010 - Minor Procedure
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 2 - Standard payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 1 - Statutory payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Hospital Part B services paid through a comprehensive APC
ASC Payment Indicator Surgical procedure on ASC list in CY 2007; payment based on OPPS relative payment weight.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P5A - Ambulatory procedures - skin
MUE 2
CCS Clinical Classification 170 - Excision of skin lesion
51 Multiple procedures: when multiple procedures, other than e/m services, physical medicine and rehabilitation services or provision of supplies (eg, vaccines), are performed at the same session by the same individual, the primary procedure or service may be reported as listed. the additional procedure(s) or service(s) may be identified by appending modifier 51 to the additional procedure or service code(s). note: this modifier should not be appended to designated "add-on" codes (see appendix d).
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
79 Unrelated procedure or service by the same physician or other qualified health care professional during the postoperative period: the individual may need to indicate that the performance of a procedure or service during the postoperative period was unrelated to the original procedure. this circumstance may be reported by using modifier 79. (for repeat procedures on the same day, see modifier 76.)
GC This service has been performed in part by a resident under the direction of a teaching physician
RT Right side (used to identify procedures performed on the right side of the body)
LT Left side (used to identify procedures performed on the left side of the body)
78 Unplanned return to the operating/procedure room by the same physician or other qualified health care professional following initial procedure for a related procedure during the postoperative period: it may be necessary to indicate that another procedure was performed during the postoperative period of the initial procedure (unplanned procedure following initial procedure). when this procedure is related to the first, and requires the use of an operating/procedure room, it may be reported by adding modifier 78 to the related procedure. (for repeat procedures, see modifier 76.)
GZ Item or service expected to be denied as not reasonable and necessary
22 Increased procedural services: when the work required to provide a service is substantially greater than typically required, it may be identified by adding modifier 22 to the usual procedure code. documentation must support the substantial additional work and the reason for the additional work (ie, increased intensity, time, technical difficulty of procedure, severity of patient's condition, physical and mental effort required). note: this modifier should not be appended to an e/m service.
52 Reduced services: under certain circumstances a service or procedure is partially reduced or eliminated at the discretion of the physician or other qualified health care professional. under these circumstances the service provided can be identified by its usual procedure number and the addition of modifier 52, signifying that the service is reduced. this provides a means of reporting reduced services without disturbing the identification of the basic service. note: for hospital outpatient reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well-being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
56 Preoperative management only: when 1 physician or other qualified health care professional performed the preoperative care and evaluation and another performed the surgical procedure, the preoperative component may be identified by adding modifier 56 to the usual procedure number.
58 Staged or related procedure or service by the same physician or other qualified health care professional during the postoperative period: it may be necessary to indicate that the performance of a procedure or service during the postoperative period was: (a) planned or anticipated (staged); (b) more extensive than the original procedure; or (c) for therapy following a surgical procedure. this circumstance may be reported by adding modifier 58 to the staged or related procedure. note: for treatment of a problem that requires a return to the operating/procedure room (eg, unanticipated clinical condition), see modifier 78.
76 Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
82 Assistant surgeon (when qualified resident surgeon not available): the unavailability of a qualified resident surgeon is a prerequisite for use of modifier 82 appended to the usual procedure code number(s).
AF Specialty physician
AG Primary physician
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
CG Policy criteria applied
CR Catastrophe/disaster related
GA Waiver of liability statement issued as required by payer policy, individual case
GV Attending physician not employed or paid under arrangement by the patient's hospice provider
GW Service not related to the hospice patient's terminal condition
GX Notice of liability issued, voluntary under payer policy
GY Item or service statutorily excluded, does not meet the definition of any medicare benefit or, for non-medicare insurers, is not a contract benefit
KX Requirements specified in the medical policy have been met
Q6 Service furnished under a fee-for-time compensation arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
SG Ambulatory surgical center (asc) facility service
TA Left foot, great toe
X4 Episodic/focused services: for reporting services by clinicians who provide focused care on particular types of treatment limited to a defined period and circumstance; the patient has a problem, acute or chronic, that will be treated with surgery, radiation, or some other type of generally time-limited intervention; reporting clinician service examples include but are not limited to, the orthopedic surgeon performing a knee replacement and seeing the patient through the postoperative period
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
XP Separate practitioner, a service that is distinct because it was performed by a different practitioner
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
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2013-01-01 Changed Description Changed
2003-01-01 Changed Code description changed.
Pre-1990 Added Code added.
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