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Official Description

Excision, tumor, soft tissue of thigh or knee area, subcutaneous; less than 3 cm

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 27327 refers to the excision of a tumor located in the soft tissue of the thigh or knee area, specifically when the tumor is subcutaneous and measures less than 3 cm in size. Soft tissues encompass a variety of structures, including subcutaneous fat, connective tissue, fascia, muscles, tendons, blood vessels, lymph vessels, nerves, and the tissues surrounding joints. Tumors found within these soft tissues can be either benign or malignant. Typically, benign tumors are treated through excision, while small malignant or indeterminate tumors may also be excised if they have well-defined margins. The procedure involves making an incision in the skin over the tumor or creating and elevating a skin flap, depending on the tumor's location. The surgeon dissects the overlying tissue to expose the soft tissue mass, excising the tumor along with a margin of healthy tissue to ensure complete removal. In some cases, a frozen section may be performed to verify that all margins are free of tumor cells. After the excision, drains may be placed as necessary, and the surgical wound is closed in layers. For tumors situated in the subcutaneous fat or connective tissue, the appropriate code to use is 27327, while tumors located below the fascia, which require a different approach, are coded with 27328 for excision of less than 5 cm.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure coded as CPT® 27327 is indicated for the excision of soft tissue tumors located in the thigh or knee area that are subcutaneous and measure less than 3 cm. The following conditions may warrant this procedure:

  • Benign Tumors These tumors are typically non-cancerous and may be excised to alleviate symptoms or for cosmetic reasons.
  • Malignant Tumors Small malignant tumors with well-defined margins may also be excised to prevent further spread and to ensure complete removal.
  • Indeterminate Tumors Tumors that are not clearly benign or malignant may require excision for diagnostic purposes and to assess the nature of the tumor.

2. Procedure

The procedure for excising a soft tissue tumor in the thigh or knee area involves several key steps:

  • Step 1: Preparation The patient is positioned appropriately, and the surgical site is prepared and draped in a sterile manner to minimize the risk of infection.
  • Step 2: Incision An incision is made over the tumor, which may involve directly incising the skin or creating a skin flap that is elevated to provide better access to the tumor.
  • Step 3: Dissection The surgeon carefully dissects the overlying tissue to expose the soft tissue mass, ensuring that surrounding structures are preserved as much as possible.
  • Step 4: Tumor Excision The tumor is excised along with a margin of healthy tissue to ensure complete removal and to minimize the risk of recurrence.
  • Step 5: Frozen Section (if applicable) A frozen section may be performed during the procedure to assess the margins of the excised tissue, ensuring that no tumor cells remain.
  • Step 6: Drain Placement If necessary, drains may be placed to prevent fluid accumulation at the surgical site.
  • Step 7: Closure The surgical wound is closed in layers, ensuring proper alignment of the tissue for optimal healing.

3. Post-Procedure

After the excision procedure coded as CPT® 27327, the patient may require monitoring for any signs of complications, such as infection or excessive bleeding. Pain management strategies will be implemented, and the patient will receive instructions on wound care to promote healing. Follow-up appointments may be scheduled to assess the surgical site and to discuss the pathology results if a frozen section was performed. The recovery period will vary depending on the individual patient and the extent of the procedure, but patients are generally advised to avoid strenuous activities during the initial healing phase.

Short Descr EXC THIGH/KNEE LES SC < 3 CM
Medium Descr EXCISION TUMOR SOFT TISSUE THIGH/KNEE SUBQ <3CM
Long Descr Excision, tumor, soft tissue of thigh or knee area, subcutaneous; less than 3 cm
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) 1 - 150% payment adjustment for bilateral procedures applies.
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 Non office-based surgical procedure added in CY 2008 or later; payment based on OPPS relative payment weight.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P5B - Ambulatory procedures - musculoskeletal
MUE 5
CCS Clinical Classification 170 - Excision of skin lesion
RT Right side (used to identify procedures performed on the right side of the body)
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.
LT Left side (used to identify procedures performed on the left side of the body)
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
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.
50 Bilateral procedure: unless otherwise identified in the listings, bilateral procedures that are performed at the same session, should be identified by adding modifier 50 to the appropriate 5 digit code. note: this modifier should not be appended to designated "add-on" codes (see appendix d).
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.
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.
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.)
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.)
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
81 Minimum assistant surgeon: minimum surgical assistant services are identified by adding modifier 81 to the usual procedure number.
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
CR Catastrophe/disaster related
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
SG Ambulatory surgical center (asc) facility service
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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2010-01-01 Changed Code description changed.
Pre-1990 Added Code added.
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