Summary & Overview
HCPCS Q4038: Cast Supplies, Short Leg Fiberglass, Adult (11+)
HCPCS Level II code Q4038 represents the supply of a short leg fiberglass cast for adults (age 11 and older). This code captures material-only supply for immobilization of the lower leg and foot using fiberglass casting material. Nationally, accurate use of this code affects billing for orthopedics, urgent care, emergency departments, and outpatient clinics where casting supplies are applied or dispensed, and it supports consistent reporting of durable medical supply utilization.
Key payers considered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical context for Q4038, typical sites of service, and the role the code plays in billing workflows. The publication provides benchmarks for supply-level coding, common modifiers used with supply and procedure claims, and notes on payer coverage patterns where available.
This summary is intended for billing managers, practice administrators, and policy analysts seeking clarity on coding classification and operational implications for cast supply claims. Data not available in the input is noted where applicable, and the content focuses on national-level considerations rather than state-specific policy.
Billing Code Overview
HCPCS Level II code Q4038 describes cast supplies, short leg cast, adult (11 years +), fiberglass. The service type is cast supply for short leg immobilization using fiberglass material. The typical site of service is outpatient facility or ambulatory surgical center, urgent care, or clinic setting where casting supplies are applied or supplied.
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
An adult patient (age 18+) presents to an orthopedic clinic or urgent care after acute ankle injury from a fall while playing recreational sports. The clinician performs a focused musculoskeletal history and physical exam, documents point tenderness and limited weight bearing, and obtains plain radiographs to exclude displaced fracture. Imaging shows a nondisplaced distal tibia or fibula fracture or a severe ankle sprain requiring immobilization. The clinician applies a short leg fiberglass cast using supplies billed under Q4038 for adult short leg fiberglass cast materials. The clinical workflow includes assessment, imaging, reduction if needed (closed), cast application by an orthopedist, physician assistant, or cast technician, patient education on cast care and activity restrictions, and scheduling of follow-up for cast check and possible radiographic reassessment.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
LT | Left side | When the cast is applied to the left lower extremity |
RT | Right side | When the cast is applied to the right lower extremity |