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Software for Orthopedic Billing Companies
Why orthopedic billing companies need software for global surgical packages, surgical and laterality modifiers, fracture care coding, and prior-auth-heavy work.
Medical Billing Software for Orthopedic Billing Companies
Short answer
Orthopedic billing is operationally distinct from most specialties because the global surgical package bundles pre-operative, intra-operative, and post-operative care into a single payment, and mismanaging that bundle is the fastest way to leave money on the table or generate compliance exposure. Every surgical claim has a global period of 0, 10, or 90 days under CMS rules, and services rendered during that window must either be included in the global payment or carry the appropriate modifier to be separately payable. On top of that, orthopedic claims routinely stack surgical modifiers, bilateral and laterality indicators, assistant-at-surgery modifiers, and fracture care supply codes in combinations that differ by payer, place of service, and procedure type. Prior authorization adds another layer for elective surgeries and advanced imaging. A billing company managing orthopedic practices needs software that shows denials at the service-line level with CARC and RARC in plain English, keeps auth status linked to claims, and supports ERA review with line-level posting. See the CMS Global Surgery booklet (MLN907166) and the CMS NCCI policy manual.
Why orthopedic billing is different
Two structural features of orthopedic revenue cycle make it harder to manage at scale than most other specialties.
The first is the global surgical package. CMS defines a global package as the pre-operative visit on the day before or day of surgery, all intra-operative services, complications not requiring a return to the operating room, post-operative office visits within the global period, and miscellaneous services including suture removal and dressing changes. For procedures assigned a 90-day global period, that window runs from the day of surgery through 90 days after. E/M visits, injections, and additional procedures performed during that window are either bundled or need a specific modifier to be paid separately. A billing company working a high-surgical-volume orthopedic practice manages this on every single operative claim.
The second is modifier density. An orthopedic surgical claim for a bilateral procedure with a physician assistant, staged with a prior surgery, billed on the same date as an unrelated E/M visit, can carry modifiers 50, 58, 80, and 25 simultaneously. Each modifier has its own documentation requirement, a specific payment arithmetic, and payer-by-payer rule variations. A missed modifier costs the payment. A wrong modifier generates a denial that takes time to work or an overpayment that creates a recoupment later.
Fracture care adds its own overlay. Casting, splinting, and supply codes run alongside professional fracture management codes, with DMEPOS L-code braces billed under separate Medicare DMEPOS enrollment. Injections into joints and the DMEPOS orthotics supplied to the same patient on the same date create claim combinations that need clean separation to avoid bundling denials.
The global surgical package: what is bundled and what is not
CMS assigns a global period indicator to every surgical procedure in the Medicare Physician Fee Schedule. Most major orthopedic surgeries, including joint replacements, rotator cuff repairs, and spine procedures, carry a 90-day global period. Many minor procedures, including joint injections and minor wound debridements, carry a 10-day global period. Some procedures have a 0-day period, meaning the day of surgery is the only bundled day.
Services bundled into the global package during the global period include post-operative office visits related to the surgery, simple suture removal, dressing changes, and the surgeon's care for complications that do not require a return to the operating room.
Services not bundled, and therefore separately payable with the right modifier, include:
- An E/M visit on the day of a minor procedure when a separately identifiable service was performed that was not part of the pre-operative assessment (modifier 25)
- An E/M visit on the day before or day of a major procedure that drove the decision to operate (modifier 57)
- A procedure during the global period that was planned prospectively as a staged step of the original surgery (modifier 58)
- An unrelated procedure during the global period by the same surgeon (modifier 79)
- A return to the operating room for complications during the global period (modifier 78)
- An E/M visit during the global period for a condition completely unrelated to the surgery (modifier 24)
- A procedure during the global period at a separate anatomical site from the original surgery (modifier 59, or the appropriate X-subset modifier)
Modifier 58 resets the global period clock. A staged procedure billed with modifier 58 starts a new global period for that second procedure. Modifier 79 also starts a new global period. Modifier 78 does not start a new global period. These distinctions affect how subsequent visits in the same episode should be billed.
Sources: CMS Global Surgery booklet MLN907166 (December 2025), CMS Medicare Claims Processing Manual Chapter 12.
Surgical and laterality modifiers
Orthopedic claims use a concentrated set of modifiers that interact with each other and with CMS payment rules in specific ways. The table below covers the modifiers that generate the most claim errors in orthopedic billing.
| Modifier | What it means | Key rule |
|---|---|---|
| 24 | Unrelated E/M by the same surgeon during the post-op global period | Requires documentation showing the visit was for a condition distinct from the surgical episode |
| 25 | Significant, separately identifiable E/M on the same day as a minor procedure | Used with the E/M code, not the procedure code; requires the E/M to be beyond the pre-procedure assessment |
| 50 | Bilateral procedure performed in the same operative session | Report the procedure code once with modifier 50; Medicare pays 150 percent of the single procedure fee schedule amount; do not combine with LT or RT on the same line |
| 51 | Multiple procedures by the same surgeon in the same session | The secondary procedure is subject to multiple-procedure payment reduction; exempt codes marked ZZZ or add-on codes do not take modifier 51 |
| 57 | Decision for surgery made at an E/M visit the day before or day of a major procedure | Applied to the E/M code; if the E/M drives the decision for a 90-day global procedure, this modifier allows separate payment |
| 58 | Staged or related procedure by the same surgeon during the post-op period | Must have been planned prospectively at the time of the original surgery; starts a new global period |
| 59 | Distinct procedural service at a separate anatomical site or different session | Use only when no more specific X-subset modifier (XE, XS, XP, XU) applies; CMS has flagged modifier 59 misuse as a high audit risk |
| 78 | Return to the operating room for complications during the global period | Does not start a new global period; the related procedure is paid at the intra-operative component rate |
| 79 | Unrelated procedure by the same surgeon during the global period | Starts a new global period for the second procedure |
| 80 | Physician assistant at surgery | The assistant surgeon bills separately at 16 percent of the Medicare Physician Fee Schedule amount for the primary procedure code |
| AS | Physician assistant or nurse practitioner serving as assistant at surgery (non-physician) | Paid at 85 percent of the 16 percent physician rate, or approximately 13.6 percent of the MPFS amount |
| LT / RT | Left side / right side | Used when performing a procedure on one side of a paired anatomical structure; do not combine with modifier 50 |
Sources: CMS Proper Use of Modifiers 59 and X-Subsets (MLN1783722, April 2026), CMS on bilateral surgery payment (Noridian JF), Modifier 80 and AS payment rates (FCSO Medicare).
Fracture care coding: professional services and supplies
Fracture care billing in orthopedics has two parallel tracks that must stay cleanly separated on the claim.
The professional service track covers fracture management CPT codes that include the treatment, initial cast or splint application, and normal follow-up within the fracture care global period. A billing company needs to know whether the fracture care CPT includes supply codes in the global package or whether supplies are separately reportable. Minor closed fracture management codes typically bundle in the initial casting or splinting; additional re-casting visits are billed separately. Open or percutaneous fracture procedures with internal fixation carry 90-day global periods, meaning post-operative care is bundled.
The supply track covers Q-codes and L-codes:
- Q-codes (HCPCS Level II) report cast and splint supplies when they are separately billable alongside fracture management professional services. These are for the materials themselves, not the application service.
- L-codes (HCPCS Level II) cover orthotics and braces. An orthopedic practice that provides a knee brace or walking boot at the time of service bills an L-code for the device. Examples frequently seen in orthopedic practices include codes in the L1000-L4999 range covering ankle-foot orthoses, knee orthoses, and spinal orthoses.
The DMEPOS separation matters. When an orthopedic practice provides DME or orthotics and bills L-codes to Medicare, that practice needs a separate DMEPOS number in addition to its standard NPI and PTAN. The professional service and the DMEPOS supply are paid by different contractors in traditional Medicare, meaning the same claim cannot carry both and expect both to pay through a single MAC. A billing company managing orthopedic practices with in-office orthotics dispensing needs to confirm each practice's DMEPOS enrollment status, because billing L-codes without enrollment results in denials that are not recoverable retroactively.
Joint injections, aspiration, or viscosupplementation injections billed on the same date as fracture care or a post-operative visit can create bundling conflicts. If the injection site is unrelated to the surgical or fracture site and is separately documented, modifier 59 or the appropriate X-subset may apply. If there is any overlap with the global period for an active surgery episode, modifier 24 and a separate diagnosis are required.
Sources: CMS billing and coding article for fracture care (A53322), Journal of Urgent Care Medicine on fracture codes and splint supply codes.
Prior authorization: surgeries and advanced imaging
Prior authorization in orthopedics does not reach the per-procedure volume that interventional pain does, but it concentrates in the highest-revenue claims. Elective joint replacements, spine surgeries, and rotator cuff repairs almost universally require authorization from commercial payers and Medicare Advantage plans. Advanced imaging, particularly MRI for soft tissue or spine pathology, frequently requires authorization before the scan occurs.
The authorization workflow creates a specific billing risk: the surgery happens, the auth number was issued, but it covered the wrong procedure code, covered the wrong date range, or was issued for a different surgeon than the one who actually performed the case. When the claim lands in adjudication, those mismatches produce auth-related denials that can be difficult to cure retroactively. Some payers require a re-authorization request before they will reconsider the claim.
For a billing company managing multiple orthopedic practices, the problem is not the complexity of any single auth request, it is maintaining visibility across all of them. Authorization status needs to be visible at the claim level so billers can confirm an auth number is attached, current, and matched to the actual procedure before the claim goes out.
Sources: CMS Medicare Advantage prior authorization data (KFF 2024), AMA prior authorization survey.
Denial patterns orthopedic billing companies see most
Global period denials are the defining failure mode for orthopedic billing. A post-operative E/M visit, a follow-up injection, or a wound check that should carry modifier 24 but goes out without it is automatically denied as bundled into the global. The same failure at scale, across ten orthopedic practices with several surgeons each, represents a meaningful revenue gap.
Missing or wrong surgical modifiers are the second category. Bilateral procedures submitted without modifier 50 pay at the single-procedure rate. A bilateral knee procedure where one side carries RT and the other LT on two lines, rather than the single-line modifier 50 format Medicare expects, often generates a second-line denial or a duplicate edit. An assistant surgeon billing with modifier 80 on a procedure the MPFS database codes as "assistant at surgery not paid" (indicator 2) will see a flat denial regardless of documentation quality.
Staged procedure errors occur when a surgeon performs a second related procedure, such as hardware removal after fracture fixation, during the original procedure's global period, and the biller submits it without modifier 58. The payer bundles it into the global payment and pays nothing for what was legitimately a staged service.
NCCI bundling hits occur most often when injections, imaging, or supply codes that are component parts of a comprehensive surgical CPT are separately reported on the same claim. Modifier 59 and X-subsets can overcome some NCCI PTP edits, but only when the documentation genuinely supports a distinct service at a separate site or session.
Auth-related denials cluster on elective surgeries and advanced imaging. The claim is technically correct but the authorization number is missing, has the wrong CPT code, or expired before the service date.
DMEPOS enrollment gaps produce denials when an orthopedic practice bills L-codes for braces or orthotics without the required DMEPOS supplier number.
Documentation-driven medical necessity denials appear most often on spinal fusion, joint replacements, and advanced imaging requests, where payers apply conservative-care-first criteria or require documented failure of specific conservative treatments before authorizing the procedure.
Sources: 247 Medical Billing Services on orthopedic billing challenges 2026, MBW RCM on orthopedic billing challenges.
How Medi handles orthopedic billing-company workflows
Medi is a billing-company-first RCM operating layer. It does not auto-code, does not replace billers, and does not generate clinical documentation. It organizes the work billers already do, across multiple orthopedic practices, in one place.
For denial management, Medi surfaces the CARC and RARC codes on each service line in plain English. A global period denial with CARC 97 pointing at a bundled post-operative visit calls for different action than a CARC 4 auth denial or a CARC 133 bilateral-procedure payment adjustment. Billers see the denial reason at the line level, with status tracking, notes, and routing, without toggling between remittance files and spreadsheets. The denial queue is organized per line, per claim, per practice. See the denial management workflow guide.
For global period visibility, Medi keeps claims in a per-practice work queue where billers can see open claims, denial status, and ERA-matched payment alongside each other. A surgical claim with active global period lines and a subsequent E/M visit can be reviewed in the same interface without cross-referencing a separate system. Medi does not flag global period conflicts automatically or generate modifier suggestions; that judgment stays with your billers.
For auth status tracking, Medi surfaces authorization status at the claim level. Billers can attach an auth number, see which claims are waiting on authorization, and route claims that denied for auth reasons into a separate follow-up queue. Medi does not submit authorization requests to payer portals. That still happens through payer portals or the practice EHR or a dedicated prior-authorization platform.
For ERA and 835 review, Medi imports ERA files through Stedi and presents payment at the service-line level. A surgical claim paid at the bilateral adjustment rate, with a separately adjudicated assistant surgeon line, shows both adjustments with the original billed amount alongside the paid amount. Billers can review each line's adjustments, flag underpayments, and route to follow-up.
For practice and provider permissions, Medi supports practice-scoped and provider-scoped access controls. A billing company with ten orthopedic practices can assign billers to specific practices without exposing the full book, while operations leads see across all practices from a single view.
What Medi does not do: it does not generate CPT or ICD-10 codes, does not auto-apply global period modifiers, does not ship orthopedic-specific claim edits, does not validate NCCI PTP edits before submission, and does not submit prior authorization requests. Those decisions stay with your billers and your clearinghouse. See the billing company software evaluation guide, or schedule a demo.
When Medi is not the right fit
Medi is not the right choice if your billing company needs orthopedic coding assistance or charge review against global period and NCCI criteria. That work needs a coder with orthopedic experience or a coding-focused integration, and Medi does not fill that gap.
If your orthopedic practices run on a single EHR with a strong built-in billing module and all share the same clearinghouse with no multi-practice coordination need, the additional workflow layer may not justify a second system.
If your core problem is clinical documentation quality for medical necessity denials on spine and joint replacement, or if you need a system that builds the prior authorization packet from clinical notes, Medi does not do that. A utilization management or prior-auth platform addresses that layer.
If your practices have in-house DMEPOS operations with high brace and orthotics volume and need a system that manages DMEPOS supplier inventory, billing, and audit documentation, a DMEPOS-specialized billing platform will fit better than a general RCM tool.
Frequently asked questions
How does the 90-day global surgical period affect daily billing work in an orthopedic practice?
Every post-operative visit, injection, or additional procedure that occurs within 90 days of a major surgery must be evaluated against the global package before a claim goes out. If the service is related to the surgery, it is either bundled and not separately billable, or it requires a modifier such as 78 for complications or 58 for a staged planned procedure. If the service is completely unrelated to the surgery, modifier 24 (for an E/M) or modifier 79 (for a procedure) allows separate billing, but documentation must make the unrelated nature clear. For billing companies managing high-surgical-volume orthopedic practices, this evaluation runs on a large share of daily encounters and is one of the more time-intensive parts of the specialty.
When does an orthopedic E/M on the day of surgery need modifier 25 versus modifier 57?
Modifier 25 applies when a significant and separately identifiable E/M is performed on the same day as a minor procedure with a 0-day or 10-day global period, and the E/M service went beyond the standard pre-procedure assessment. Modifier 57 applies when an E/M visit on the day before or day of surgery led directly to the decision to perform a major procedure with a 90-day global period. The distinction matters because modifier 57 belongs on the E/M code for major surgery decisions, and using modifier 25 in that situation generates a claim error. Documentation in both cases must reflect that the E/M was a distinct, medically necessary service above and beyond routine pre-operative evaluation.
What is the Medicare payment rule for bilateral orthopedic procedures using modifier 50?
Under the Medicare Physician Fee Schedule, a procedure reported with modifier 50 is paid at 150 percent of the single-procedure fee schedule amount when the procedure is designated as a bilateral procedure in the MPFS database. Some procedures are designated as inherently bilateral (payment indicator 3) and are paid at 100 percent regardless of modifier 50. Others carry indicator 1, meaning bilateral payment applies at 150 percent when modifier 50 is appended. Procedures with indicator 2 are not paid separately as bilateral under any circumstance. Modifier LT or RT should not be combined with modifier 50 on the same line. Confirm the bilateral payment indicator for each procedure in the MPFS Look-Up Tool before applying modifier 50.
When must an orthopedic practice have a DMEPOS supplier number to bill braces and orthotics?
Any orthopedic practice billing L-codes for orthotics or braces to Medicare must have a separate DMEPOS supplier number issued by the National Supplier Clearinghouse, in addition to the practice's standard NPI and PTAN. Without DMEPOS enrollment, claims with L-codes submitted to the Part B MAC will deny. This applies to prefabricated orthoses dispensed in the office as well as custom fabricated devices. Commercial payers vary, but Medicare's rule is a hard threshold. Billing companies onboarding a new orthopedic practice should confirm DMEPOS enrollment status before the first claim with an L-code goes out.
Does Medi validate global period conflicts or apply modifiers automatically?
No. Medi does not detect global period conflicts, suggest modifiers, or auto-correct coding before submission. That judgment requires a biller who knows the surgery history, the payer policy, and the clinical documentation, none of which Medi accesses. What Medi does is surface denials with CARC and RARC translations at the service-line level, so when a global period denial arrives on a post-operative claim, the biller sees the denial reason in plain English and can act on it with the correct modifier and appeal documentation rather than hunting through multiple remittance files to find it.
What is the difference between modifier 78 and modifier 58 for a second orthopedic surgery during the global period?
Modifier 78 applies when the patient must return to the operating room for treatment of a complication arising from the original surgery, during the active global period. The second procedure is paid at the intra-operative component of the fee schedule only, and the original global period continues. Modifier 58 applies when the second procedure was planned prospectively at the time of the original surgery, making it a staged step in the overall treatment plan. For modifier 58 to apply, the staging intent should be documented in the operative note or plan at the time of the first procedure, not asserted after the fact. Modifier 58 starts a new global period for the staged procedure and is paid at the full fee schedule amount for that code.
References
These public sources provide background for standards, terminology, or competitor context discussed on this page.
- CMS Physician Fee ScheduleCenters for Medicare and Medicaid Services
- X12 external code listsX12
- MGMA detecting and fixing leaks across the revenue cycleMedical Group Management Association