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Official Description

Amputation, finger or thumb, primary or secondary, any joint or phalanx, single, including neurectomies; with local advancement flaps (V-Y, hood)

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

An amputation of the finger or thumb, as described by CPT® Code 26952, involves the surgical removal of all or part of the digit due to various medical conditions such as severe trauma, infection, or malignant tumors. This procedure can be performed at specific anatomical locations, including the interphalangeal (IP) joints or the metacarpophalangeal (MCP) joints, or through the phalanges themselves. The surgical process begins with a skin incision made at the predetermined level of amputation. Following the incision, the surrounding soft tissues are carefully dissected to expose the joint or phalanx that is to be removed. During the procedure, tendons may be detached or divided and subsequently reattached to the remaining bone as necessary. A critical aspect of this surgery is the management of digital nerves, which are longitudinally distracted distally and transected in a technique known as traction neurectomy. This technique is designed to minimize the risk of neuroma formation by allowing the nerve end to retract proximally, positioning it 1-1.5 cm from the end of the stump. Blood vessels are also addressed during the procedure, being suture ligated and divided or cauterized to control bleeding. If the amputation occurs at the joint, the joint structures are dissected, and the finger is completely severed, while the articular cartilage is preserved on the remaining bone to cushion it. In cases where the amputation is performed through one of the phalanges, a small bone saw is utilized to cut the bone at the desired level, and the bone end is smoothed using a rongeur or file. Unlike the procedure described in CPT® Code 26951, where the overlying soft tissues are closed in layers, CPT® Code 26952 involves the development of a local advancement flap to cover the stump. Various types of flaps may be employed, including fillet flaps, volar V-Y flaps, bilateral V-Y flaps, and homodigital island flaps, to ensure optimal healing and aesthetic outcomes.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure described by CPT® Code 26952 is indicated for the following conditions:

  • Severe Trauma: Amputation may be necessary due to significant injury to the finger or thumb that cannot be repaired or salvaged.
  • Infection: In cases where an infection has severely compromised the integrity of the digit, amputation may be required to prevent the spread of infection.
  • Malignant Tumor: The presence of a malignant tumor in the finger or thumb may necessitate amputation to remove cancerous tissue and prevent further complications.

2. Procedure

The procedure for amputation of the finger or thumb, as outlined in CPT® Code 26952, involves several critical steps:

  • Step 1: Skin Incision A skin incision is made at the designated level where the amputation will occur. This incision is crucial for accessing the underlying structures of the digit.
  • Step 2: Dissection of Soft Tissues Following the incision, the surrounding soft tissues are meticulously dissected to expose the IP or MCP joint or the phalanx that is to be amputated. This step is essential for ensuring that all necessary structures are properly visualized and managed during the procedure.
  • Step 3: Management of Tendons During the dissection, tendons may need to be detached or divided. If necessary, these tendons are reattached to the remaining bone to maintain function and stability of the hand.
  • Step 4: Neurectomy The digital nerves are longitudinally distracted distally and transected in a procedure known as traction neurectomy. This technique allows the nerve end to retract proximally, positioning it 1-1.5 cm from the end of the stump, which helps to minimize the risk of neuroma formation.
  • Step 5: Vascular Control Blood vessels are carefully suture ligated and divided or cauterized to control any bleeding during the procedure, ensuring a clear surgical field.
  • Step 6: Joint Dissection (if applicable) If the amputation is performed at the joint, the joint structures are dissected, and the finger is completely severed. It is important to note that the articular cartilage is not removed from the remaining bone, as it serves as a cushion for the underlying bone.
  • Step 7: Bone Cutting (if applicable) In cases where the amputation is performed through one of the phalanges, a small bone saw is utilized to cut the bone at the desired level. After cutting, the bone end is smoothed using a rongeur or file to ensure a clean and even surface.
  • Step 8: Flap Development Unlike the procedure described in CPT® Code 26951, where soft tissues are closed in layers, in CPT® Code 26952, a local advancement flap is developed and used to cover the stump. Various types of flaps may be employed, including fillet flaps, volar V-Y flaps, bilateral V-Y flaps, and homodigital island flaps, to promote optimal healing and aesthetic results.

3. Post-Procedure

Post-procedure care following an amputation of the finger or thumb includes monitoring for signs of infection, managing pain, and ensuring proper wound healing. Patients may require follow-up visits to assess the healing of the surgical site and the effectiveness of the flap used to cover the stump. Rehabilitation may also be necessary to help the patient regain function and adapt to the changes resulting from the amputation. The healthcare team will provide specific instructions regarding care of the surgical site, activity restrictions, and any necessary physical therapy to support recovery.

Short Descr AMPUTATION OF FINGER/THUMB
Medium Descr AMP F/TH 1/2 JT/PHALANX W/NEURECT LOCAL FLAP
Long Descr Amputation, finger or thumb, primary or secondary, any joint or phalanx, single, including neurectomies; with local advancement flaps (V-Y, hood)
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) P5B - Ambulatory procedures - musculoskeletal
MUE 4
CCS Clinical Classification 164 - Other OR therapeutic procedures on musculoskeletal system
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.
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).
54 Surgical care only: when 1 physician or other qualified health care professional performs a surgical procedure and another provides preoperative and/or postoperative management, surgical services may be identified by adding modifier 54 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.
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).
AF Specialty physician
AG Primary physician
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)
CR Catastrophe/disaster related
F1 Left hand, second digit
F2 Left hand, third digit
F3 Left hand, fourth digit
F4 Left hand, fifth digit
F5 Right hand, thumb
F6 Right hand, second digit
F7 Right hand, third digit
F8 Right hand, fourth digit
F9 Right hand, fifth digit
FA Left hand, thumb
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
T6 Right foot, second digit
TA Left foot, great toe
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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Pre-1990 Added Code added.
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