L8631 – Metacarpal phalangeal joint replacement, two or more pieces, metal (e.g., stainless steel or cobalt chrome), ceramic-like material (e.g., pyrocarbon), for surgical implantation (all sizes, includes entire system)
HCPCS Level II code · L codes: Orthotic and Prosthetic Procedures and Devices
HCPCS codeL8631
- Long description
- Metacarpal phalangeal joint replacement, two or more pieces, metal (e.g., stainless steel or cobalt chrome), ceramic-like material (e.g., pyrocarbon), for surgical implantation (all sizes, includes entire system)
- Short description
- Mcp joint repl 2 pc or more
- Pricing indicator
38Orthotics, prosthetics, prosthetic devices & vision services- Medicare coverage
DSpecial coverage instructions apply- BETOS category
D1FProsthetic/Orthotic devices- Added
- January 1, 2004
- Last change
- January 1, 2004 – No change
Frequently asked questions
What is HCPCS code L8631?
L8631 is a HCPCS Level II code for metacarpal phalangeal joint replacement, two or more pieces, metal (e.g., stainless steel or cobalt chrome), ceramic-like material (e.g., pyrocarbon), for surgical implantation (all sizes, includes entire system).
Does Medicare cover L8631?
The HCPCS file lists coverage code D: Special coverage instructions apply. Coverage and payment also depend on local coverage determinations and the patient’s plan.
Nearby L codes
- L8622 – Alkaline battery for use with cochlear implant device, any size, replacement, each
- L8623 – Lithium ion battery for use with cochlear implant device speech processor, other than ear level, replacement, each
- L8624 – Lithium ion battery for use with cochlear implant or auditory osseointegrated device speech processor, ear level, replacement, each
- L8625 – External recharging system for battery for use with cochlear implant or auditory osseointegrated device, replacement only, each
- L8627 – Cochlear implant, external speech processor, component, replacement
- L8628 – Cochlear implant, external controller component, replacement
- L8629 – Transmitting coil and cable, integrated, for use with cochlear implant device, replacement
- L8630 – Metacarpophalangeal joint implant
- L8641 – Metatarsal joint implant
- L8642 – Hallux implant
- L8658 – Interphalangeal joint spacer, silicone or equal, each
- L8659 – Interphalangeal finger joint replacement, 2 or more pieces, metal (e.g., stainless steel or cobalt chrome), ceramic-like material (e.g., pyrocarbon) for surgical implantation, any size
- L8670 – Vascular graft material, synthetic, implant
- L8678 – Electrical stimulator supplies (external) for use with implantable neurostimulator, per month
- L8679 – Implantable neurostimulator, pulse generator, any type
- L8680 – Implantable neurostimulator electrode, each
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.