Summary & Overview

CPT 29040: Application of Static Short Arm Cast, Forearm to Hand

CPT code 29040 is a critical billing code in orthopedics, representing the application of a static short arm cast from the forearm to the hand. This procedure is a cornerstone in the management of fractures and injuries to the upper extremity, providing immobilization to facilitate healing. The code is most frequently utilized in office settings, reflecting its routine use in outpatient orthopedic care.

Major national payers, including Aetna, Blue Cross Blue Shield, Cigna Health, Medicare, and UnitedHealthcare, recognize and reimburse for CPT code 29040. Understanding payer coverage and policy nuances is essential for providers and billing professionals to ensure accurate claims and compliance.

This publication offers a comprehensive overview of CPT code 29040, including clinical context, payer coverage, and related coding benchmarks. Readers will gain insight into the procedure's role in orthopedic practice, typical sites of service, and how it fits within broader coding and reimbursement frameworks. Policy updates and coding trends are also discussed, equipping stakeholders with the information needed to navigate the evolving landscape of orthopedic billing and documentation.

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CPT Code Overview

CPT code 29040 describes the application of a short arm cast, extending from the forearm to the hand, in a static position. This procedure is commonly performed in orthopedic settings to immobilize fractures or injuries of the forearm or hand. The typical site of service for this procedure is the office, designated as Place of Service 11. Short arm casts are essential for stabilizing injuries, promoting healing, and preventing further damage during the recovery period. This code is widely used in orthopedic practices across the United States.

Clinical & Coding Specifications

Clinical Context

A patient presents to the orthopedic office with a closed fracture of the distal radius or hand, such as after a fall or trauma. The physician evaluates the injury, confirms the diagnosis with clinical assessment and imaging, and determines that immobilization is required. The provider applies a static short arm cast from the forearm to the hand to stabilize the fracture and promote healing. The procedure is performed in the office setting, and the cast is applied to either the left or right side, depending on the injury location. Follow-up visits are scheduled to monitor healing and adjust treatment as needed.

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 Orthopaedic Surgery Physician

Taxonomy Code	Specialty Name
`207X00000X`	Orthopaedic Surgery Physician

National Reimbursement Benchmarks

For CPT code 29040, the national mean rate for Medicare is $351.50, while the average commercial benchmark (BUCA) is $304.33. This indicates that Medicare's mean reimbursement is higher than the commercial average, but lower than some individual commercial payers such as UnitedHealth Group ($427.54) and Cigna ($366.11).

Rate dispersion, measured by the difference between the 75th and 25th percentiles, varies significantly across payers. Medicare shows the tightest range ($39.00), reflecting more consistent rates nationally. In contrast, UnitedHealth Group exhibits the widest dispersion ($262.67), followed by Cigna ($206.93), indicating greater variability in commercial reimbursement. Aetna and Blue Cross Blue Shield have moderate ranges of $96.60 and $145.85, respectively.

The table and chart below present a detailed breakdown of national mean rates and percentile values for each payer.

National Mean Rates by Payer for CPT 29040

Related CPT Codes

29125 - Application of short arm splint (forearm to hand); static
- Used for immobilization with a splint instead of a cast; may be an alternative to 29040 in less severe injuries or when temporary immobilization is needed.
29130 - Application of finger splint; static
- Used for isolated finger fractures or injuries; not as extensive as a short arm cast.
29075 - Application of short arm cast (forearm to hand); gauntlet
- Similar to 29040 but includes the gauntlet style, which may provide additional wrist support.
29105 - Application of long arm splint (shoulder to hand); static
- Used for injuries requiring immobilization of the entire arm, such as more proximal fractures; not commonly used with 29040 but may be considered for more extensive injuries.
Clinical Workflow:
- 29125 and 29130 are alternatives to 29040 for less severe or more localized injuries.
- 29075 may be used instead of 29040 when additional wrist support is needed.
- 29105 is used for more extensive immobilization, not typically in conjunction with 29040.

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Summary & Overview

CPT 29040: Application of Static Short Arm Cast, Forearm to Hand

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