# L5657: Prosthetics

- **HCPCS code:** L5657
- **CMS description:** Addition to lower extremity prosthesis, manual/automated adjustable air, fluid, gel or equal socket insert for limb volume management, any materials

## Service Type Codes to Send

1. [75 Prosthetic Device](https://www.verifytx.com/stc-lookup/service-types/75/)
2. [DM Durable Medical Equipment](https://www.verifytx.com/stc-lookup/service-types/DM/)

**Why these codes:** Prosthetic devices have their own STC; DME is the fallback.

**Sources:** CMS HCPCS Level II descriptor; X12 HIPAA 5010 service type code definitions; VerifyTX billing practice

---

Canonical: https://www.verifytx.com/stc-lookup/procedure-codes/L5657/