Q4041 Long Leg Plaster Splint — HCPCS Reimbursement

HCPCS Level II code Q4041 denotes cast supplies for a long leg plaster splint for adults and adolescents aged 11 years and older. This code identifies the supply component associated with long leg immobilization using plaster materials and is relevant across settings where acute limb stabilization is provided. Nationally, accurate use of Q4041 affects supply reporting, claims processing, and appropriate allocation of resources for orthopedic immobilization.

Key payers addressed in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context for long leg plaster splints, typical sites of service, and the billing context for supply reporting. The publication summarizes common payer coverage considerations, applicable billing modifiers, and benchmarking approaches where available. It highlights areas where coding clarity matters for claims adjudication and supply cost management.

The report provides benchmarks and coverage notes where payer-specific guidance exists, flags common documentation elements that support medical necessity for immobilization supplies, and outlines clinical scenarios in which a long leg plaster splint is typically supplied. Data not provided in the input are marked as unavailable.

Billing Code Overview

HCPCS Level II code Q4041 describes cast supplies, long leg splint, adult (11 years +), plaster. The service represents the supply component for application of a long leg plaster splint intended for adults and adolescents aged 11 years and older.

Service Type: Orthopedic immobilization supply

Typical Site of Service: Hospital inpatient or outpatient orthopedic departments, emergency departments, urgent care centers, and ambulatory surgery centers

Data not available in the input.

Clinical Context

An adult patient presents to an orthopedic urgent care or emergency department after a low-energy fall with acute pain, swelling, and deformity of the lower leg or knee region. Radiographs confirm a closed distal tibia/fibula fracture or significant soft-tissue injury requiring temporary immobilization. A long leg plaster splint (adult) is applied to immobilize the knee and tibia/fibula, control pain and swelling, and protect neurovascular status prior to definitive management (casting, walking boot, or operative fixation). Typical workflow: triage and evaluation, history and focused exam, imaging (plain radiographs), informed consent, application of Q4041 cast supplies (plaster long leg splint, adult), documentation of splint type, laterality, time of application, patient education on elevation and neurovascular checks, and arrangement of follow-up with orthopedics within 48–72 hours for reassessment and definitive treatment.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when application required substantially greater work due to patient factors (obesity, extreme pain, contractures) documented in the record
`23`

Taxonomy Code	Specialty	Notes
`207X00000X`	Orthopaedic Surgery	Orthopedic surgeons commonly apply long leg splints for fracture stabilization
`208000000X`	Emergency Medicine	Emergency physicians frequently perform initial splinting in ED or urgent care settings
`263Q00000X`	Physical Medicine & Rehabilitation	PM&R physicians may apply or adjust immobilization as part of nonoperative fracture care
`1835S0105X`	Orthopedic Physician Assistant	Physician assistants in orthopedics commonly assist with or apply splints
`363L00000X`	Occupational Therapist	Occupational therapists may provide patient education and assistive-device coordination post-immobilization

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`S82.201A`	Unspecified fracture of shaft of right tibia, initial encounter for closed fracture	Tibial shaft fractures commonly require long leg splinting for immobilization prior to definitive treatment
`S82.202A`	Unspecified fracture of shaft of left tibia, initial encounter for closed fracture	As above for the left lower extremity
`S82.301A`	Unspecified fracture of shaft of right fibula, initial encounter for closed fracture	Fibular shaft fractures often need knee-spanning immobilization when associated with tibial injury
`S82.302A`	Unspecified fracture of shaft of left fibula, initial encounter for closed fracture	As above for the left side
`S82.001A`	Fracture of unspecified part of right tibia, initial encounter for closed fracture	Proximal or distal tibia fractures stabilized with long leg splints to control motion and swelling
`S82.009A`	Fracture of unspecified part of left tibia, initial encounter for closed fracture	Same clinical relevance for the contralateral limb
`M24.561`	Stiffness of right knee	Knee immobilization with a long leg splint may be required for acute stiffness after injury
`M24.562`	Stiffness of left knee	As above for left knee

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`29075`	Application of short leg cast (below knee)	May be used if immobilization is changed from long leg splint to definitive short leg cast once swelling subsides
`29515`	Application of splint; long leg	Clinically similar procedure code for splint application; used when reporting physician services for long leg splinting procedures
`73610`	Radiologic exam, ankle; 3 views	Pre- and post-application radiographs to document fracture alignment and splint position
`73590`	Radiologic exam, tibia and fibula; 2 or 3 views	Imaging commonly obtained to diagnose tibial/fibular fractures prior to splint application
`20690`	Aspiration and/or injection, major joint or bursa (without ultrasound guidance)	May be performed prior to splinting in cases with large hemarthrosis requiring decompression before immobilization

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Summary & Overview

HCPCS Q4041: Long Leg Plaster Splint Supply, Adult