CPT 29450 Reimbursement & Benchmarks

CPT code 29450 covers the application of a long or short leg clubfoot cast, a critical orthopedic procedure for immobilizing and supporting the lower extremity. This service is frequently performed in office settings and is integral to the treatment of clubfoot and various tibial fractures. The code is recognized by major national payers, including Aetna, Blue Cross Blue Shield, Cigna Health, Medicare, and UnitedHealthcare, ensuring broad coverage for patients requiring this intervention.

This publication provides a comprehensive overview of CPT code 29450, including payer coverage, clinical context, and related billing codes. Readers will gain insight into the procedure's role in orthopedic care, typical sites of service, and associated supply codes. The summary also highlights common modifiers used for laterality and outlines relevant taxonomies for provider specialties. Additionally, the publication details ICD-10 diagnoses commonly linked to this procedure and references related CPT codes for cast removal or repair.

Healthcare professionals and policy analysts will find benchmarks, policy updates, and clinical context to support understanding of reimbursement and coding practices for orthopedic casting. The information is designed to inform stakeholders about national trends and payer policies related to CPT code 29450.

CPT Code Overview

CPT code 29450 is used for the application of a long or short leg clubfoot cast, a procedure commonly performed in orthopedic settings to immobilize and support the lower extremity. This service falls under orthopedic casting and is typically provided in an office setting (Place of Service 11). The procedure is essential for managing conditions such as clubfoot and certain fractures, ensuring proper alignment and healing of the affected limb.

Clinical Context

A pediatric patient presents to the orthopedic office with a diagnosis of clubfoot or a tibial fracture, such as an unspecified fracture of the upper, shaft, or lower end of the tibia. The orthopedic surgeon evaluates the patient and determines that immobilization with a long or short leg clubfoot cast is necessary to facilitate proper healing and alignment. The cast is applied in the office setting, and the laterality is documented. The procedure is typically performed by specialists in orthopedic surgery, foot and ankle surgery, or orthopedic trauma. The workflow includes assessment, cast application, and instructions for follow-up care.

Coding Specifications

Modifiers:
- LT: Indicates the procedure was performed on the left side.
- RT: Indicates the procedure was performed on the right side.
Provider Taxonomies:

Taxonomy Code	Specialty Name
`207X00000X`	Orthopedic Surgery

For CPT code 29450, national mean rates show that Medicare reimburses at $149.82, while the average commercial benchmark (BUCA) is higher at $182.75. Among individual commercial payers, UnitedHealth Group has the highest mean rate at $238.72, followed by Cigna at $225.84.

Rate dispersion, measured by the difference between the 75th and 25th percentiles, varies significantly across payers. Medicare exhibits the tightest range at $12.00, indicating relatively consistent rates nationwide. In contrast, UnitedHealth Group has the widest dispersion at $137.50, reflecting substantial variability in commercial reimbursement. Cigna and Blue Cross Blue Shield also show broad ranges, while Aetna's rates are more tightly clustered.

The table and chart below present a detailed breakdown of national benchmarks for each payer.

Related Diagnoses

S82.101A: Unspecified fracture of upper end of right tibia, initial encounter for closed fracture
- Relevant for patients requiring immobilization of the right leg due to a fracture at the upper end of the tibia.
S82.102A: Unspecified fracture of upper end of left tibia, initial encounter for closed fracture
- Indicates a left tibial fracture at the upper end, necessitating casting for stabilization.
S82.201A: Unspecified fracture of shaft of right tibia, initial encounter for closed fracture
- Used when the fracture is located at the shaft of the right tibia, requiring a long or short leg cast.
S82.202A: Unspecified fracture of shaft of left tibia, initial encounter for closed fracture
- Applies to fractures of the shaft of the left tibia, where casting is indicated.
S82.301A: Unspecified fracture of lower end of right tibia, initial encounter for closed fracture
- Pertains to fractures at the lower end of the right tibia, for which a clubfoot cast may be applied.

Each diagnosis code represents a clinical scenario where immobilization with a clubfoot cast is appropriate to ensure proper healing and alignment of the tibia.

Related CPT Codes

29700-29750: Cast removal or repair (when applied by another physician group). These codes are used when the cast applied with 29450 is subsequently removed or repaired by a different physician group.
Q4035: Level II supply code applicable to 29450. This code is used to report the supplies used for the cast application.
Q4036: Level II supply code applicable to 29450. This code is also used for reporting supplies specific to the cast application.
Q4039: Level II supply code applicable to 29450. This code covers additional supply costs for the cast application.

These codes are commonly used together with 29450 to account for cast removal, repair, and supply costs. 29700-29750 are alternatives for cast removal or repair, while Q4035, Q4036, and Q4039 are used in conjunction with 29450 for supply billing.

The table and chart below present a detailed breakdown of national benchmarks for each payer.

OpenPayer

Summary & Overview

CPT 29450: Application of Long or Short Leg Clubfoot Cast