L5640 is the authoritative medical code for Addition to lower extremity, knee disarticulation, leather socket. This classification is used in medical billing and clinical recording to specify the clinical criteria for addition to lower extremity, knee disarticulation, leather socket (HCPCS Level II L5640), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: Processed within HCPCS Level II standards. CMS regulatory guidelines apply.
Official Registry Overview & Definition
Addition to lower extremity, knee disarticulation, leather socket is a HCPCS Level II code L5640 for a Medicare-covered supply, service, or procedure. Short description: Knee disarticulat leather so.
Codes in This Family (40)
Official HCPCS Level II classifications in the same code family as L5640, with their registry titles.
- L5600 — Preparatory, hip disarticulation-hemipelvectomy, pylon, no cover, sach foot, laminated socket, molded to patient model
- L5610 — Addition to lower extremity, endoskeletal system, above knee, hydracadence system
- L5611 — Addition to lower extremity, endoskeletal system, above knee - knee disarticulation, 4 bar linkage, with friction swing phase control
- L5613 — Addition to lower extremity, endoskeletal system, above knee-knee disarticulation, 4 bar linkage, with hydraulic swing phase control
- L5614 — Addition to lower extremity, exoskeletal system, above knee-knee disarticulation, 4 bar linkage, with pneumatic swing phase control
- L5615 — Addition, endoskeletal knee-shin system, 4 bar linkage or multiaxial, fluid swing and stance phase control
- L5616 — Addition to lower extremity, endoskeletal system, above knee, universal multiplex system, friction swing phase control
- L5617 — Addition to lower extremity, quick change self-aligning unit, above knee or below knee, each
- L5618 — Addition to lower extremity, test socket, symes
- L5620 — Addition to lower extremity, test socket, below knee
- L5622 — Addition to lower extremity, test socket, knee disarticulation
- L5624 — Addition to lower extremity, test socket, above knee
- L5626 — Addition to lower extremity, test socket, hip disarticulation
- L5628 — Addition to lower extremity, test socket, hemipelvectomy
- L5629 — Addition to lower extremity, below knee, acrylic socket
- L5630 — Addition to lower extremity, symes type, expandable wall socket
- L5631 — Addition to lower extremity, above knee or knee disarticulation, acrylic socket
- L5632 — Addition to lower extremity, symes type, 'ptb' brim design socket
- L5634 — Addition to lower extremity, symes type, posterior opening (canadian) socket
- L5636 — Addition to lower extremity, symes type, medial opening socket
- L5637 — Addition to lower extremity, below knee, total contact
- L5638 — Addition to lower extremity, below knee, leather socket
- L5639 — Addition to lower extremity, below knee, wood socket
- L5642 — Addition to lower extremity, above knee, leather socket
- L5643 — Addition to lower extremity, hip disarticulation, flexible inner socket, external frame
- L5644 — Addition to lower extremity, above knee, wood socket
- L5645 — Addition to lower extremity, below knee, flexible inner socket, external frame
- L5646 — Addition to lower extremity, below knee, air, fluid, gel or equal, cushion socket
- L5647 — Addition to lower extremity, below knee suction socket
- L5648 — Addition to lower extremity, above knee, air, fluid, gel or equal, cushion socket
- L5649 — Addition to lower extremity, ischial containment/narrow m-l socket
- L5650 — Additions to lower extremity, total contact, above knee or knee disarticulation socket
- L5651 — Addition to lower extremity, above knee, flexible inner socket, external frame
- L5652 — Addition to lower extremity, suction suspension, above knee or knee disarticulation socket
- L5653 — Addition to lower extremity, knee disarticulation, expandable wall socket
- L5654 — Addition to lower extremity, socket insert, symes, (kemblo, pelite, aliplast, plastazote or equal)
- L5655 — Addition to lower extremity, socket insert, below knee (kemblo, pelite, aliplast, plastazote or equal)
- L5656 — Addition to lower extremity, socket insert, knee disarticulation (kemblo, pelite, aliplast, plastazote or equal)
- L5657 — Addition to lower extremity prosthesis, manual/automated adjustable air, fluid, gel or equal socket insert for limb volume management, any materials
- L5658 — Addition to lower extremity, socket insert, above knee (kemblo, pelite, aliplast, plastazote or equal)
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
HCPCS Code L5643
Addition to lower extremity, hip disarticulation, flexible inner socket, external frame
HCPCS Code L5645
Addition to lower extremity, below knee, flexible inner socket, external frame