Medicare Part B Splint and Orthotic Billing for Skilled Nursing Facilities

When a resident needs an ankle-foot orthosis, the physical therapist documents the assessment, the practitioner signs the order, and the device gets delivered. The Part B claim almost certainly goes to an external supplier.

Splints and orthotics add a second layer to that familiar pattern: the orthotic L-code system has a complexity reputation that keeps most SNF billing departments from trying at all. So the claim goes to the supplier, or it goes nowhere. Here is what Part B covers, where the supporting documentation already lives, and what changes when the facility bills under its own NPI.

Why L-Codes Keep Most SNF Billing Departments Away

Every Part B supply category has a barrier. For surgical dressings it is the assumption that the vendor handles it. For ostomy and urological supplies it is a monthly supplier relationship nobody questions. For splints and orthotics, the barrier is reputation.

Orthotic devices bill under the L-code classification, a separate HCPCS category from the A-codes used across the other supply types. L-codes are device-specific: they distinguish by device type, joint configuration, material, and whether the device is off-the-shelf, custom-fitted, or custom-fabricated. That specificity intimidates billing teams who have not worked with them.

The records that support those claims are not in the nursing notes. They are in the physical and occupational therapy assessments. A PT evaluating a resident for an AFO documents the functional deficit, the device specification, and the clinical rationale. An OT recommending a wrist splint for contracture management does the same. Medicare treats the ordering practitioner's records as the primary source, so the practitioner has to review and sign that therapy evaluation before writing the order. The documentation is there; the workflow connection usually is not.

What Medicare Part B Covers for Splints and Orthotics

Part B covers orthotic devices under the braces benefit at 42 U.S.C. § 1395x(s)(9), which covers leg, arm, back, and neck braces. CMS defines a brace as a rigid or semi-rigid device used to support a weak or deformed body member, or to restrict or eliminate motion in a diseased or injured part of the body (Medicare Benefit Policy Manual, Ch. 15, § 130). Elastic and other soft supports do not meet that definition.

For a resident in a covered Part A stay, the orthotic sits inside the SNF PPS payment under the consolidated billing rules that came out of the Balanced Budget Act of 1997. For a resident who is not in a covered Part A stay, the facility bills the orthotic to its Medicare Administrative Contractor on the same Part B institutional claim it uses for other services, paid at the DMEPOS fee schedule amount (Medicare Claims Processing Manual, Pub. 100-04, Ch. 7 and Ch. 20).

• Ankle-foot orthoses (AFOs) for residents with foot drop, spasticity, or neurological conditions affecting gait. Among the most common orthotic devices in SNF rehabilitation.
• Wrist and hand splints for fracture recovery, carpal tunnel management, contracture prevention, and post-stroke positioning. To bill as a brace, the splint has to be rigid or semi-rigid.
• Knee orthoses for post-surgical residents, residents with knee instability including from osteoarthritis, or residents recovering from injury. Most knee orthosis criteria assume the resident is ambulatory.
• Hand and finger splints for contracture management, arthritis, and neurological conditions affecting hand function.
• Cervical orthoses for spinal injuries and post-surgical cervical spine management.

What the Claim Requires

Billing orthotic devices under Part B requires a Standard Written Order from the treating practitioner (a physician, PA, NP, or clinical nurse specialist) identifying the item, medical records from that practitioner supporting that the device is reasonable and necessary, and proof of delivery. For certain spinal, knee, ankle-foot, knee-ankle-foot, and upper limb codes on CMS's Required Face-to-Face Encounter and Written Order Prior to Delivery List, the practitioner must also have examined the resident within the six months before the order, and the order must be complete before delivery. Many of those same codes require prior authorization when a supplier bills them; confirm with your MAC how it treats facility claims for listed codes.

For prefabricated devices, the practitioner's order and the clinical record behind it carry the claim. The therapist's assessment documents the functional deficit, the device indicated, and the expected benefit. When that evaluation carries the clinical picture, Medicare expects the treating practitioner to review, sign, and date it before writing the order. The documentation is already produced as part of standard PT and OT practice; the signature step usually is not.

For custom-fabricated devices, the practitioner's record has to say why a prefabricated device will not work for this resident, corroborated by the orthotist's functional evaluation, measurements, and fabrication records. No Certificate of Medical Necessity is involved: CMS retired CMNs for all items at the start of 2023, and orthotics never had one.

How External Suppliers Capture This Revenue

Most SNFs have an arrangement with a DMEPOS supplier or orthotics company. The supplier handles fitting and fabrication, submits the L-code claim under its own NPI, and receives the reimbursement. The therapy documentation stays in your system. The billing revenue does not.

For prefabricated devices that nursing or therapy staff dispense directly from facility stock, most SNFs have no billing workflow at all. Every rigid or semi-rigid splint or wrist orthosis dispensed internally to a Part B resident without a claim is revenue that never appears in your billing system. Those two failure modes, misdirected claims and uncaptured claims, make orthotics the category where the gap is hardest to estimate from the outside. If you have never examined the arrangement claim by claim, start with the five-step supply vendor audit.

What the Facility-NPI Model Changes

When a SNF bills orthotic devices under its own NPI, the reimbursement from every qualifying device flows to the facility: externally fitted and fabricated devices, and prefabricated devices dispensed internally. That applies to residents outside a covered Part A stay. During a Part A stay the orthotic is inside the PPS payment and nobody bills it separately. The broader comparison is in supplier-billed vs. facility-NPI Part B billing.

This is the fifth category in Burst's Part B supply framework. If you have read the surgical dressing, ostomy supply, and urological supply posts, the mechanics are consistent: the facility purchases or dispenses the supply, the documentation in PointClickCare supports the claim, and the claim goes out under the facility's NPI. The L-code system adds device-specification requirements. The principle is the same.

The Compliance Case for Billing Under Your Own NPI

CMS lists DMEPOS suppliers as one of its fraud hot spots, and orthotic braces have a longer history there than the other categories in this series. The 2019 Operation Brace Yourself takedown alleged more than $1.2 billion in losses from medically unnecessary braces ordered through telemarketing and telemedicine. A 2024 HHS Office of Inspector General report found Medicare paid more than $1 billion over three years for off-the-shelf braces ordered by practitioners with no treating relationship with the patient.

In its most recent improper payment reporting, CMS projected roughly $2.3 billion in improper DMEPOS payments at a 24.1% rate. Orthoses ran about double that: lower limb orthoses at roughly $122 million and 47.2%, lumbar-sacral orthoses at about $60 million and 52.3%, and upper limb orthoses at about $49 million and 48.1%.

CMS is careful to say an improper payment rate is not a fraud rate. For orthoses, the errors are almost entirely missing records: between a quarter and two fifths of the improper payments were claims where no documentation was submitted at all, and roughly another 45% were insufficient documentation, meaning an order, a face-to-face note, a supporting medical record, or a proof of delivery that was not there when the auditor asked. Incorrect coding, where the off-the-shelf and custom-fitted distinction would show up, accounted for almost none of it.

So the exposure in orthotic billing is less about picking the wrong tier and more about proving the tier you picked. A custom-fitted code needs a fitting record. A custom-fabricated code needs the practitioner's note on why prefabricated will not do. Every code needs the order, the practitioner's records, and delivery documentation. When the facility bills under its own NPI with a partner that reads the therapy record directly, the claim and the records sit with the same entity. That does not change the rules, and CMS does not endorse one billing model over another.

What Burst Does for SNF Orthotic Billing

Burst reads the therapy and nursing documentation your clinical team already produces in PointClickCare, identifies the device type and fabrication tier from the assessment and fitting notes, matches it to the applicable L-code classification, verifies the practitioner's order and, where the code requires it, the face-to-face documentation, and submits the claim under your facility's NPI. Burst is a PointClickCare Marketplace Partner with read-only access, so your staff does not learn a new system. See how the PointClickCare integration works.

Human QA runs on every claim, so coding-tier mismatches and missing face-to-face documentation are caught before submission. Burst processed 18,974 claims in 2025 and works with facilities in 16 states. Your current orthotics supplier relationship stays intact for devices that require external fitting and fabrication, and Burst does not specify devices. The contingency model means no setup fee, no monthly minimum, and a month-to-month term.

Compliance Note

This article is general information, not legal or billing advice. Orthotic coverage criteria, code sets, and face-to-face and prior authorization requirements change, and several are written for DMEPOS suppliers billing the DME MACs. Confirm with your Medicare Administrative Contractor how those rules apply to your facility's institutional claim, verify credentials and licensure before billing a custom-fitted or custom-fabricated code, and have your compliance officer or counsel review any change in billing arrangement before implementation.

References

• 42 U.S.C. § 1395x
• Medicare Benefit Policy Manual, Chapter 15
• Medicare Claims Processing Manual, Chapter 7 (SNF Part B Billing)
• CMS Off-the-Shelf Orthotics guidance
• CMS Required Face-to-Face Encounter and Written Order Prior to Delivery List
• CMS notice discontinuing Certificates of Medical Necessity
• 2025 Medicare FFS Supplemental Improper Payment Data
• OIG report A-09-21-03019 (off-the-shelf braces)