Summary & Overview

CPT 29740: Wedging of Cast, Musculoskeletal Surgical Procedure

CPT code 29740, Wedging of Cast, is a specialized surgical procedure used in orthopedic care to adjust the alignment of a cast after its initial application. This code is significant in the national healthcare landscape, as it addresses the need for precise fracture management and improved patient outcomes. The procedure is typically performed in outpatient surgery settings and is relevant for a range of musculoskeletal injuries, including fractures and dislocations.

Major payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication provides a comprehensive overview of payer coverage, policy updates, and clinical benchmarks related to CPT 29740. Readers will gain insights into the procedural context, typical sites of service, and the role of this code in orthopedic practice. Additionally, the summary highlights common modifiers and associated taxonomies, offering a clear understanding of billing and clinical documentation requirements.

This article is designed for healthcare professionals, billing specialists, and policy analysts seeking up-to-date information on the utilization and reimbursement landscape for wedging of cast procedures. The content also includes references to related CPT codes and ICD-10 diagnoses, supporting a broader understanding of musculoskeletal surgical care.

AetnaBlue Cross Blue ShieldCigna HealthMedicareUnitedHealthcareCPT 29740Orthopaedic SurgeryMusculoskeletal ProceduresOutpatient SurgeryCast WedgingSurgical CodingClinical BenchmarkingPolicy UpdatesMedical BillingOrthopaedic Trauma

CPT Code Overview

CPT 29740 represents the wedging of a cast, a surgical procedure performed on the musculoskeletal system. This intervention is typically used to adjust the alignment of a cast after it has been applied, often to improve fracture positioning or correct deformities. The procedure is most commonly performed in an outpatient surgery setting, such as Place of Service 19. Wedging of a cast is a critical step in orthopedic care, ensuring optimal healing and function for patients with fractures or musculoskeletal injuries.

Clinical & Coding Specifications

Clinical Context

A patient presents to an outpatient surgical facility with a closed fracture of the clavicle or humerus, or a dislocation of the shoulder joint. The initial management involves immobilization with a cast. During follow-up, the treating orthopaedic surgeon determines that the fracture alignment requires adjustment to optimize healing. The procedure performed is wedging of the cast (CPT 29740), which involves altering the cast to correct the position of the bone without removing the entire cast. This is typically done in an outpatient setting by an orthopaedic surgeon, orthopaedic trauma specialist, or hand surgeon.

Coding Specifications

Modifiers:

Modifier Code Description When Used
59 Distinct Procedural Service Used when CPT 29740 is performed as a separate and distinct service from other procedures on the same day.
76

Modifier Code	Description	When Used
`59`	Distinct Procedural Service	Used when `CPT 29740` is performed as a separate and distinct service from other procedures on the same day.
`76`

National Reimbursement Benchmarks

Medicare's national mean rate for CPT code 29740 is $112.71, while the average commercial benchmark (BUCA) is slightly higher at $116.54. UnitedHealth Group and Cigna report the highest mean rates among major payers, at $156.72 and $144.93 respectively, with Aetna at the lowest mean rate of $74.51.

Rate dispersion, measured by the difference between the 75th and 25th percentiles, varies significantly across payers. Medicare shows the tightest range ($11.00), indicating relatively consistent reimbursement, while UnitedHealth Group exhibits the widest spread ($92.00), reflecting greater variability. Cigna also has a broad range ($80.50), whereas Aetna's dispersion is more moderate ($30.92).

The table and chart below present a detailed breakdown of national payer benchmarks for CPT code 29740, including mean rates and percentile values.

National Mean Rates by Payer for CPT Code 29740

Taxonomy Code	Specialty
`207X00000X`	Orthopaedic Surgery
`207XX0004X`	Orthopaedic Trauma
`207XS0117X`	Surgery of the Hand

Related CPT Codes

29065 - Application of shoulder spica cast
- Used for initial immobilization of shoulder and upper arm fractures or injuries. May precede or follow wedging of cast (CPT 29740) if further immobilization is needed.
29700 - Removal or bivalving of cast
- Performed when the cast needs to be removed or split, often before wedging or for other clinical reasons. Sometimes used in conjunction with CPT 29740 if cast removal is necessary prior to wedging.
20680 - Removal of implant; deep
- Used for removal of deep orthopedic implants. Not directly related to cast wedging but may be part of the overall fracture management workflow.
20670 - Removal of implant; superficial
- Used for removal of superficial orthopedic implants. Similar to 20680, it is not directly related to cast wedging but may be performed in the same episode of care.

CPT 29740 is commonly used with 29700 if cast removal is required before wedging. 29065 may be an alternative or preceding procedure for immobilization. 20670 and 20680 are related to fracture management but not typically performed at the same time as cast wedging.

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Summary & Overview

CPT 29740: Wedging of Cast, Musculoskeletal Surgical Procedure

CPT Code Overview

Clinical & Coding Specifications

Clinical Context

Coding Specifications

National Reimbursement Benchmarks

Related Codes

Related Diagnoses

Related CPT Codes

National Reimbursement Benchmarks

Related Codes