Summary & Overview
HCPCS Q4029: Long Leg Plaster Cast Supply, Adult
HCPCS Level II code Q4029 represents a plaster long leg cast supply for adults (age 11 and older). The code identifies a standardized supply item used to immobilize the lower extremity for fractures, post-operative protection, or other orthopedic conditions requiring long leg immobilization. Nationally, such supply codes matter for accurate outpatient and ambulatory billing, supply inventory management, and ensuring consistent coverage determinations across payers.
Key payers covered include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical context for use of a long leg plaster cast, typical sites of service where the supply is billed, and the relevance of classifying supply items under HCPCS Level II for claims processing. The publication also summarizes expected content areas such as billing benchmarks, common modifier practices, and payer coverage considerations where available. If specific payer policies or reimbursement benchmarks are required, those details will be presented in the full publication. Data not available in the input is noted where applicable.
Billing Code Overview
HCPCS Level II code Q4029 describes cast supplies, long leg cast, adult (11 years +), plaster. The service type is orthopedic casting supply used for immobilization of the lower extremity. The typical site of service is outpatient orthopedics, emergency department, ambulatory surgery, or clinic settings where cast application or supply is provided.
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
An adult patient presents to an orthopedic clinic or emergency department with a distal femur, tibial plateau, or complex lower extremity fracture requiring immobilization. After initial evaluation, radiographic imaging confirms a fracture pattern that necessitates immobilization extending from the thigh to the ankle. The orthopedic surgeon or cast technician applies a long leg plaster cast (Q4029) to immobilize the knee and lower leg, control swelling, and provide stability while awaiting definitive fixation or conservative healing.
Typical workflow:
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Patient triage and stabilization followed by history and focused physical exam.
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Radiographs obtained and reviewed by the treating clinician.
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Informed consent and explanation of cast application process documented.
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Limb prepared (padding, stockinette) and long leg plaster cast supplies used to fabricate the cast.
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Cast application performed by an orthopedic surgeon, physician assistant, nurse practitioner, or certified cast technician under the supervising physician.
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Post-application instructions provided regarding weight-bearing status, neurovascular checks, signs of compartment syndrome, and follow-up care.
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Documentation includes indication, materials used (
Q4029), technique, patient tolerance, and follow-up plan.