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Official Description

Excision, tumor, soft tissue of leg or ankle area, subfascial (eg, intramuscular); 5 cm or greater

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 27634 refers to the excision of a tumor located in the soft tissue of the leg or ankle area, specifically when the tumor is subfascial, meaning it lies beneath the fascia. The fascia is a connective tissue that surrounds muscles, blood vessels, and nerves, and serves as a supportive structure. Soft tissues encompass a variety of components, including subcutaneous fat, connective tissue, fascia, muscles, tendons, blood vessels, lymph vessels, nerves, and the tissues surrounding joints. Tumors found in these soft tissues can be either benign or malignant. Typically, benign tumors are removed 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 alternatively, creating and elevating a skin flap to access the tumor. Once the overlying tissue is dissected, the soft tissue mass is exposed, allowing for the excision of 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 the margins are free of tumor cells, which is a critical step in ensuring that the tumor has been completely excised. After the tumor is removed, drains may be placed as necessary to prevent fluid accumulation, and the surgical wound is then closed in layers to promote proper healing. It is important to note that for tumors located in the subcutaneous fat or connective tissue, a different code, CPT® 27632, is used for excision of soft tissue tumors measuring 3 cm or greater, while CPT® 27634 is specifically designated for excision of subfascial soft tissue tumors that are 5 cm or greater in size, including those found within muscle tissue.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 27634 is indicated for the excision of tumors located in the soft tissue of the leg or ankle area, specifically when these tumors are subfascial. The following conditions may warrant this procedure:

  • Soft Tissue Tumors Tumors that are found within the soft tissues of the leg or ankle, which may be benign or malignant in nature.
  • Well-Defined Margins Small malignant or indeterminate tumors that have well-defined margins, making them suitable for excision.
  • Size of Tumor Tumors that measure 5 cm or greater in size, necessitating the use of CPT® Code 27634 for proper coding and billing.

2. Procedure

The procedure for excising a subfascial soft tissue tumor in the leg or ankle area involves several critical steps:

  • Incision The surgeon begins by making an incision in the skin directly over the tumor. In some cases, a skin flap may be created and elevated to provide better access to the tumor.
  • Tissue Dissection Once the incision is made, the overlying tissue is carefully dissected to expose the soft tissue mass. This step is crucial to ensure that the tumor is adequately visualized and accessible for excision.
  • Excision of Tumor The tumor is excised along with a margin of healthy tissue surrounding it. This margin is essential to ensure that all tumor cells are removed and to minimize the risk of recurrence.
  • Frozen Section Analysis If necessary, a frozen section may be performed during the procedure to confirm that the margins of the excised tissue are free of tumor cells. This step helps to ensure complete removal of the tumor.
  • Placement of Drains After the tumor has been excised, drains may be placed as needed to prevent fluid accumulation in the surgical site, which can aid in the healing process.
  • Closure of Wound Finally, the surgical wound is closed in layers. This layered closure technique promotes optimal healing and reduces the risk of complications.

3. Post-Procedure

Post-procedure care following the excision of a subfascial soft tissue tumor includes monitoring the surgical site for signs of infection, managing pain, and ensuring proper wound care. Patients may be advised to keep the area clean and dry, and to follow specific instructions regarding activity restrictions to promote healing. Follow-up appointments are typically scheduled to assess the healing process and to review any pathology results from the excised tissue. If drains were placed, they will be monitored and removed as appropriate based on the amount of drainage and the surgeon's assessment. Overall, the recovery process will vary depending on the individual patient and the extent of the procedure performed.

Short Descr EXC LEG/ANKLE TUM DEP 5 CM/>
Medium Descr EXC TUMOR SOFT TISSUE LEG/ANKLE SUBFASC 5 CM/>
Long Descr Excision, tumor, soft tissue of leg or ankle area, subfascial (eg, intramuscular); 5 cm or greater
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) 2 - Payment restriction for assistants at surgery does not apply 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) P3D - Major procedure, orthopedic - other
MUE 2
CCS Clinical Classification 160 - Other therapeutic procedures on muscles and tendons
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).
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).
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.
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).
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).
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)
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
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
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
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
Date
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2011-01-01 Changed Short description changed.
2010-01-01 Added -
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