# L5857: Prosthetics

- **HCPCS code:** L5857
- **CMS description:** Addition to lower extremity prosthesis, endoskeletal knee-shin system, microprocessor control feature, swing phase only, includes electronic sensor(s), any type

## 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

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Canonical: https://www.verifytx.com/stc-lookup/procedure-codes/L5857/