Summary & Overview
HCPCS Q4037: Short Leg Plaster Cast Supplies, Adult (11+)
HCPCS Level II code Q4037 identifies plaster cast supplies for an adult short leg cast (age 11+). This supply-level code matters nationally because cast materials are commonly billed across emergency departments, outpatient clinics, ambulatory surgery centers, and hospital outpatient departments. Accurate use of Q4037 affects supply billing, inventory tracking, and claims processing for immobilization procedures following lower-leg fractures, ankle injuries, and related conditions.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical context for short leg plaster casts, typical sites of service where the supply is used, and which payers commonly process claims for such supplies. The publication outlines common billing modifiers and payer practices when available, national-level benchmarks where supplied, and relevant policy considerations that influence coverage and claim adjudication.
The report is intended for billing professionals, practice managers, and policy analysts seeking clarity on coding for cast supplies, claims handling nuances, and the administrative context that determines reimbursement and supply utilization.
Billing Code Overview
HCPCS Level II code Q4037 describes cast supplies for a short leg cast in adults (age 11 and older), made of plaster. This supply code covers the materials used to apply a short leg plaster cast, a device typically used to immobilize the lower leg, ankle, and foot following fractures, severe sprains, or certain soft-tissue injuries.
Service Type: Durable medical supply / cast application materials
Typical Site of Service: Hospital outpatient departments, ambulatory surgery centers, emergency departments, and clinic settings where cast application is performed
Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes.
Clinical & Coding Specifications
Clinical Context
A typical adult patient presents to an urgent care or orthopedic clinic after an acute inversion injury of the ankle sustained while playing recreational sports. The clinician performs a focused musculoskeletal exam and obtains plain radiographs to exclude displaced fractures. Radiographs show no displaced fracture but clinical instability and swelling warrant immobilization. The patient is fitted with a short leg plaster cast using Q4037 cast supplies for immobilization and pain control. The workflow includes initial evaluation, imaging, wound/skin assessment, selection of appropriate cast type and size, application of stockinette and padding, placement of plaster bandage material, molding to the ankle and lower leg, drying time monitoring, and discharge instructions including elevation, weight-bearing status, and return precautions. Typical sites of service are outpatient clinics, urgent care centers, emergency departments, and orthopedic ambulatory procedure areas. The service applies to adults and adolescents aged 11 years and older requiring a short leg plaster cast for immobilization of the ankle, distal tibia/fibula, or foot injuries where plaster is clinically indicated.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
LT | Left side | Use when the cast is applied to the left lower extremity |