Summary & Overview
HCPCS L5050: Ankle Symes Molded Socket with SACH Foot
HCPCS Level II code L5050 denotes a molded socket for a Symes/ankle-disarticulation prosthesis paired with a SACH foot. As a commonly billed prosthetic component, this code is significant for clinicians, prosthetists, and payers because it captures provision of a foundational, low-complexity ambulatory foot and socket assembly for patients with Symes or similar amputations. Nationally, consistent coding for these devices affects claims adjudication, prosthetic coverage decisions, and provider reimbursement workflows.
Key payers in this overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical context for L5050, typical sites of service, and the service type represented by the code. The publication provides benchmarks and coding guidance insights where available, highlights relevant policy and coverage considerations that commonly influence payment for prosthetic sockets and feet, and outlines practical implications for billing and documentation. Data not available in the input is noted where specific payer coverage policies, modifiers usage patterns, associated taxonomies, ICD-10 pairings, and related codes would otherwise be summarized.
Billing Code Overview
HCPCS Level II code L5050 describes an ankle, Symes, molded socket with SACH foot prosthetic component. This item represents a molded transtibial/Symes socket designed for a Symes (ankle-disarticulation) or similar limb configuration, fitted with a solid ankle cushion heel (SACH) foot for basic energy return and stability.
Service type: Prosthetic device fabrication and fitting
Typical site of service: Prosthetics clinic or orthotics & prosthetics (O&P) facility, with delivery and fitting in an outpatient or specialty prosthetic care setting.
Clinical & Coding Specifications
Clinical Context
A 45-year-old patient with a transtibial (Syme) amputation presents to a certified prosthetist for fabrication of a custom-molded ankle socket prosthesis fit to a SACH (solid ankle cushion heel) foot. The patient reports stable residual limb volume, healed surgical site, and functional goals of household and limited community ambulation. The clinical workflow includes an initial prosthetic evaluation by a prosthetist or orthotist, limb casting or digital scan to create a molded socket, selection and alignment of a SACH foot component, trial fitting, gait assessment, final adjustments, and delivery with patient education on donning/doffing, skin inspection, and follow-up scheduling. Follow-up visits commonly address socket pressure points, alignment tweaks, and component wear. Typical sites of service are an orthotics and prosthetics clinic, outpatient rehabilitation facility, or a hospital-based prosthetics clinic. The service is billed as a prosthetic device provision for a molded ankle (Syme) socket with a SACH foot component using billing code L5050.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
LT | Left side | Use when the prosthesis is for the left limb. |
RT |