L0859 — Addition to halo procedure, magnetic resonance image compatible systems, rings and pins, any material
L0859 is a HCPCS Level II code for addition to halo procedure, magnetic resonance image compatible systems, rings and pins, any material. It belongs to the Orthotic and Prosthetic Procedures and Devices section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Carrier judgment
Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
Medically Unlikely Edits — units per day
The most units of L0859 Medicare will pay on one date of service. Bill more on a single line and it is denied. The limit is not the same in every setting, so the row that matters is the one matching the claim you are building.
- practitioner
- 0 — never payable MAI 3 — Date of Service Edit: Clinical · CMS Policy
- outpatient
- 1 unit MAI 2 — Date of Service Edit: Policy · Code Descriptor / CPT Instruction
- DME supplier
- 1 unit MAI 2 — Date of Service Edit: Policy · Code Descriptor / CPT Instruction
The adjudication indicator decides whether exceeding the limit is worth appealing at all: MAI 1 is a line edit you can support with documentation, MAI 3 is a date-of-service edit that is also appealable, and MAI 2 is absolute — no documentation overrides it. CMS MUE 2026Q3.
The CMS record for L0859
- Long descriptor
- Addition to halo procedure, magnetic resonance image compatible systems, rings and pins, any material
- Short descriptor
- Mri compatible system
- Added
- January 1, 2006
- BETOS
- D1F
- Pricing indicator
- 38 — DMEPOS
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Orthotics, prosthetics, prosthetic devices and vision services. Price subject to floors and ceilings.
Codes adjacent to L0859
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If L0859 is not quite right, the correct code is very often within a few positions of it.
- L0650Lumbar-sacral orthosis, sagittal-coronal control, with rigid anterior and posterior frame/panel(s), posterior extends from sacrococcygeal junction to t-9 vertebra, lateral strength provided by rigid lateral frame/panel(s), produces intracavitary pressure to reduce load on intervertebral discs, includes straps, closures, may include padding, shoulder straps, pendulous abdomen design, prefabricated, off-the-shelf
- L0651Lumbar-sacral orthosis, sagittal-coronal control, rigid shell(s)/panel(s), posterior extends from sacrococcygeal junction to t-9 vertebra, anterior extends from symphysis pubis to xyphoid, produces intracavitary pressure to reduce load on the intervertebral discs, overall strength is provided by overlapping rigid material and stabilizing closures, includes straps, closures, may include soft interface, pendulous abdomen design, prefabricated, off-the-shelf
- L0700Cervical-thoracic-lumbar-sacral-orthoses (ctlso), anterior-posterior-lateral control, molded to patient model, (minerva type)
- L0710Ctlso, anterior-posterior-lateral-control, molded to patient model, with interface material, (minerva type)
- L0720Cervical-thoracic-lumbar-sacral-orthoses (ctlso), anterior-posterior-lateral control, prefabricated item that has been trimmed, bent, molded, assembled, or otherwise customized to fit a specific patient by an individual with expertise
- L0810Halo procedure, cervical halo incorporated into jacket vest
- L0820Halo procedure, cervical halo incorporated into plaster body jacket
- L0830Halo procedure, cervical halo incorporated into milwaukee type orthosis
- L0861Addition to halo procedure, replacement liner/interface material
- L0970Tlso, corset front
- L0972Lso, corset front
- L0974Tlso, full corset
- L0976Lso, full corset
- L0978Axillary crutch extension
- L0980Peroneal straps, prefabricated, off-the-shelf, pair
- L0982Stocking supporter grips, prefabricated, off-the-shelf, set of four (4)
Questions about L0859
What is HCPCS code L0859?
L0859 is a HCPCS Level II code for addition to halo procedure, magnetic resonance image compatible systems, rings and pins, any material. It sits in the Orthotic and Prosthetic Procedures and Devices section.
Does Medicare cover L0859?
The CMS HCPCS file marks L0859 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.