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Official Description

Application of long leg splint (thigh to ankle or toes)

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The application of a long leg splint, designated by CPT® Code 29505, is a procedure aimed at stabilizing injuries to the lower extremity by minimizing movement and providing essential support. This type of splint extends from the thigh down to the ankle or toes, effectively immobilizing the entire leg. The process begins with the application of a stockinette, which serves as a protective layer over the skin. Following this, padding is added to enhance comfort and prevent pressure sores. The splint itself is created using plaster sheets that are cut to the appropriate length for the patient's leg. These sheets are immersed in water to become pliable, and excess moisture is removed before application. The plaster is then carefully placed on the posterior aspect of the leg, where it is smoothed and molded to ensure a snug fit. Finally, an elastic bandage is wrapped around the leg to secure the splint in place, ensuring that it remains effective in immobilizing the injured area. This procedure is critical in the management of various lower extremity injuries, providing the necessary support for healing and recovery.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The application of a long leg splint (CPT® Code 29505) is indicated for various conditions that require immobilization of the lower extremity. These indications include:

  • Fractures of the femur, tibia, or fibula that necessitate stabilization to promote proper healing.
  • Severe sprains or strains of the knee or ankle that require immobilization to prevent further injury.
  • Post-operative support following surgical procedures on the lower leg or knee to maintain stability during the recovery phase.
  • Soft tissue injuries that may benefit from immobilization to reduce pain and swelling.

2. Procedure

The procedure for applying a long leg splint involves several detailed steps to ensure proper immobilization and support of the injured leg. The steps are as follows:

  • Preparation of the leg begins with the application of a stockinette over the entire leg, which serves as a protective barrier between the skin and the splint material. This step is crucial to prevent skin irritation and to provide a comfortable surface for the padding.
  • Padding application follows, where soft padding is placed over the stockinette. This padding is essential for cushioning the leg and preventing pressure points that could lead to discomfort or injury.
  • Preparation of plaster sheets involves cutting the plaster sheets to the appropriate length based on the patient's leg size. These sheets are then immersed in water until they are fully saturated, allowing them to become pliable for molding.
  • Application of plaster is performed by gently squeezing out excess water from the plaster sheets before placing them on the posterior aspect of the leg. The plaster is then smoothed and molded to conform to the shape of the leg, ensuring a secure fit that immobilizes the area effectively.
  • Securing the splint is the final step, where an elastic bandage is wrapped around the leg over the plaster splint. This bandage not only holds the splint in place but also provides additional support and stability to the injured area.

3. Post-Procedure

After the application of the long leg splint, it is important to monitor the patient for any signs of complications, such as increased pain, swelling, or changes in circulation. The patient should be advised on how to care for the splint, including keeping it dry and avoiding putting weight on the injured leg until cleared by a healthcare professional. Follow-up appointments may be necessary to assess the healing process and to make any adjustments to the splint as needed. Proper post-procedure care is essential to ensure optimal recovery and to prevent further injury.

Short Descr APPLICATION LONG LEG SPLINT
Medium Descr APPLICATION LONG LEG SPLINT THIGH ANKLE/TOES
Long Descr Application of long leg splint (thigh to ankle or toes)
Status Code Active Code
Global Days 000 - Endoscopic or 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) 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 Procedure or Service, Multiple Reduction Applies
ASC Payment Indicator Office-based surgical procedure added to ASC list in CY 2008 or later with MPFS nonfacility PE RVUs; payment based on MPFS nonfacility PE RVUs.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P6B - Minor procedures - musculoskeletal
MUE 1
CCS Clinical Classification 214 - Traction, splints, and other wound care
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)
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.
GC This service has been performed in part by a resident under the direction of a teaching physician
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).
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.
77 Repeat procedure by another physician or other qualified health care professional: it may be necessary to indicate that a basic procedure or service was repeated by another physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 77 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).
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
CR Catastrophe/disaster related
ET Emergency services
GA Waiver of liability statement issued as required by payer policy, individual case
GF Non-physician (e.g. nurse practitioner (np), certified registered nurse anesthetist (crna), certified registered nurse (crn), clinical nurse specialist (cns), physician assistant (pa)) services in a critical access hospital
GO Services delivered under an outpatient occupational therapy plan of care
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
KX Requirements specified in the medical policy have been met
PN Non-excepted service provided at an off-campus, outpatient, provider-based department of a hospital
PO Excepted service provided at an off-campus, outpatient, provider-based department of a hospital
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
SA Nurse practitioner rendering service in collaboration with a physician
T4 Left foot, fifth digit
T5 Right foot, great toe
T9 Right foot, fifth digit
TA Left foot, great toe
U7 Medicaid level of care 7, as defined by each state
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
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
Date
Action
Notes
2011-01-01 Changed Short description changed.
Pre-1990 Added Code added.
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