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Official Description

Excision of lip; V-excision with primary direct linear closure

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 40520 refers to the excision of a lip lesion using a V-excision technique, followed by primary direct linear closure. This procedure is specifically designed for the removal of small lesions, scars, or defects located on the lip. The process begins with the physician marking the planned incision lines on the lip using a surgical marking pen, ensuring that the incision will encompass a margin of healthy tissue surrounding the lesion to promote optimal healing and cosmetic results. Prior to the incision, local anesthesia, often combined with epinephrine, is administered to minimize discomfort and control bleeding during the procedure. The V-excision technique involves making a V-shaped incision that extends through the vermilion (the colored part of the lip) down to the white part of the lip, allowing for the complete excision of the targeted tissue. After the lesion is removed, the surgical wound is meticulously closed with sutures in a direct linear manner, ensuring that the vermilion border is properly aligned for aesthetic purposes. This procedure is essential for addressing various lip conditions while maintaining the functional and cosmetic integrity of the lip structure.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure described by CPT® Code 40520 is indicated for the excision of small lesions, scars, or defects located on the lip. These indications may include:

  • Lesions that may be benign or potentially malignant, requiring removal for diagnostic or therapeutic purposes.
  • Scars that may be aesthetically unpleasing or symptomatic, necessitating excision for cosmetic improvement or functional restoration.
  • Defects in the lip that may arise from trauma, surgical interventions, or congenital conditions, which require correction to restore normal lip anatomy and function.

2. Procedure

The procedure for CPT® Code 40520 involves several key steps, which are detailed as follows:

  • Step 1: Marking the Incision Lines The physician begins by assessing the lesion, scar, or defect on the lip and marking the planned incision lines with a surgical marking pen. This step is crucial to ensure that the excision encompasses a margin of healthy tissue surrounding the lesion, which aids in healing and reduces the risk of recurrence.
  • Step 2: Anesthesia Administration Once the incision lines are marked, the lip is injected with a local anesthetic, often combined with epinephrine. This combination helps to minimize pain during the procedure and control bleeding by constricting blood vessels in the area.
  • Step 3: Performing the V-Excision Following anesthesia, the physician proceeds with the V-excision. The incision is made along the previously marked V-shaped lines, extending through the vermilion down to the white part of the lip. The incision is carefully executed to ensure complete removal of the lesion while preserving surrounding healthy tissue.
  • Step 4: Excision of the Lesion The lesion, along with any associated scar tissue or defect, is excised from the lip. This step is performed with precision to ensure that all affected tissue is removed while maintaining the integrity of the lip structure.
  • Step 5: Closure of the Surgical Wound After the lesion is excised, the surgical wound is repaired using sutures in a direct linear fashion. The physician takes care to align the vermilion border accurately to achieve optimal cosmetic results and restore the normal appearance of the lip.

3. Post-Procedure

Post-procedure care for CPT® Code 40520 includes monitoring the surgical site for any signs of infection or complications. Patients are typically advised to keep the area clean and may be given specific instructions regarding wound care. Pain management may be necessary, and the physician may prescribe analgesics as needed. Patients should also be informed about the importance of avoiding activities that could stress the surgical site, such as vigorous physical activity or excessive lip movement, during the initial healing phase. Follow-up appointments may be scheduled to assess healing and remove sutures if non-absorbable materials were used.

Short Descr PARTIAL EXCISION OF LIP
Medium Descr EXC LIP V-EXC W/PRIM DIR LINR CLSR
Long Descr Excision of lip; V-excision with primary direct linear closure
Status Code Active Code
Global Days 090 - Major Surgery
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) P5E - Ambulatory procedures - other
MUE 2
CCS Clinical Classification 33 - Other OR therapeutic procedures on nose, mouth and pharynx
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).
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.
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.)
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
GA Waiver of liability statement issued as required by payer policy, individual case
GC This service has been performed in part by a resident under the direction of a teaching physician
GW Service not related to the hospice patient's terminal condition
LT Left side (used to identify procedures performed on the left side of the body)
RT Right side (used to identify procedures performed on the right side of the body)
SG Ambulatory surgical center (asc) facility service
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
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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