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Official Description

Application of clubfoot cast with molding or manipulation, long or short leg

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 29450 involves the application of a clubfoot cast, which can be either a long or short leg cast, utilizing molding or manipulation techniques. This casting method is specifically designed to address a clubfoot deformity, a condition where the foot is abnormally positioned, typically characterized by an inward rotation and supination. The primary goal of this procedure is to correct the foot's alignment by progressively stretching the contracted soft tissues through a series of corrective casts. This treatment is most commonly applied to infants or young children, as their bones and soft tissues are more malleable, allowing for effective repositioning of the foot. The casting process begins with the application of a stockinette over the area that will be casted, providing a protective layer for the skin. Following this, padding is placed over the stockinette to ensure comfort and to protect the underlying tissues. A plaster or fiberglass roll is then prepared by immersing it in water until it is fully saturated, after which excess water is gently squeezed out. The saturated material is then wrapped around the leg, typically starting from the distal (far) end and moving proximally (toward the body). During this wrapping process, the plaster or fiberglass is carefully smoothed and shaped around the ankle and foot to effectively stretch the soft tissues and maintain the foot in a more anatomically correct position. This methodical approach is crucial for the successful treatment of clubfoot deformities, facilitating gradual correction and improving the overall function of the foot.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The application of a clubfoot cast with molding or manipulation, as described by CPT® Code 29450, is indicated for the treatment of specific conditions related to clubfoot deformities. These indications include:

  • Clubfoot Deformity A condition characterized by the inward rotation and supination of the foot, requiring corrective intervention to realign the foot into a more normal position.
  • Congenital Foot Deformities Conditions present at birth that affect the structure and positioning of the foot, necessitating early intervention to promote proper development.
  • Progressive Correction Needs Situations where a series of corrective casts are required to gradually stretch contracted soft tissues and improve foot alignment over time.

2. Procedure

The procedure for applying a clubfoot cast involves several detailed steps to ensure effective treatment. These steps include:

  • Preparation of the Patient The patient, typically an infant or young child, is positioned comfortably to allow access to the affected foot. The area to be casted is examined to assess the degree of the clubfoot deformity and to plan the casting approach.
  • Application of Stockinette A stockinette is applied over the area of the leg and foot that will be casted. This protective layer serves to shield the skin from irritation and provides a smooth surface for the cast material.
  • Padding Application Soft padding is placed over the stockinette to enhance comfort and protect the underlying tissues. This padding is crucial for preventing pressure sores and ensuring the cast fits snugly without causing harm.
  • Preparation of Casting Material A plaster or fiberglass roll is immersed in water to saturate it thoroughly. After saturation, excess water is gently squeezed out to ensure the material is not overly wet, which could affect the setting process.
  • Application of the Cast The saturated plaster or fiberglass is wrapped around the leg, starting from the distal end and moving proximally. Care is taken to mold the material around the ankle and foot, ensuring that it holds the foot in a corrected position while stretching the contracted soft tissues.
  • Smoothing and Shaping Once the cast is applied, it is smoothed and shaped to conform to the contours of the foot and ankle. This step is essential for achieving the desired alignment and ensuring that the cast remains effective throughout the treatment period.

3. Post-Procedure

After the application of the clubfoot cast, specific post-procedure care is necessary to ensure optimal healing and correction of the deformity. The patient should be monitored for any signs of discomfort or complications, such as swelling or skin irritation. Regular follow-up appointments are essential to assess the progress of the treatment and to determine when additional casts may be required. The cast should remain intact and dry, and caregivers should be instructed on how to care for the casted area, including keeping it clean and avoiding moisture. As the treatment progresses, the healthcare provider will evaluate the need for further adjustments or additional casting to continue the correction of the clubfoot deformity.

Short Descr APPLICATION OF LEG CAST
Medium Descr APPL CLUBFOOT CAST MOLDING/MANJ LONG/SHORT LEG
Long Descr Application of clubfoot cast with molding or manipulation, long or short leg
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
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.
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.)
GP Services delivered under an outpatient physical therapy plan of care
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
KX Requirements specified in the medical policy have been met
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)
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
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