HCPCS code
Prosthetics
CMS description
Above knee, molded socket, open end, sach foot, endoskeletal system, single axis knee
In the order to send them
Why these codes
Prosthetic devices have their own STC; DME is the fallback.
If a payer returns nothing
Payers don't all answer every service type. Send 30 (Health Benefit Plan Coverage) for the plan's general benefits.
Sources
CMS HCPCS Level II descriptor; X12 HIPAA 5010 service type code definitions; VerifyTX billing practice