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Last Updated: August 4, 2026
Key takeaways
CPT code 20703 is a Category I add-on code for removal of an intramedullary drug-delivery device.
The code is never billed alone, and it is always reported in addition to the primary procedure code.
Modifier 51 must never be appended to 20703, because CPT exempts add-on codes from the multiple-procedure rule.
If device removal is the only procedure performed, report 20680 instead of 20703.
Pabau’s claims management software helps surgical practices check code-level accuracy before claims leave the practice.
CPT code 20703 is an add-on code, not a standalone surgical code. The official American Medical Association (AMA) descriptor reads “Removal of drug-delivery device(s), intramedullary (List separately in addition to code for primary procedure)”.
That parenthetical carries the billing rule. The code exists only as a companion to another procedure, so it never goes out on a claim by itself.
20703 entered the code set in 2020 alongside 20700, 20701, 20702, 20704, and 20705. All six sit in the musculoskeletal system section, and all six are add-on codes. They capture the extra work of preparing and placing, or removing, an antibiotic-loaded drug-delivery device during a larger operation.
This code sits alongside other CPT procedure codes in the 20000-series musculoskeletal range. It is device-specific. Removal of fixation hardware such as a rod, nail, or plate without a drug-delivery function belongs to a different code.
CPT code 20703 at a glance
Add-on status drives every other rule in the table below, including the global period. 20703 has no global period of its own, because it inherits the one attached to the primary procedure.
Procedure description and clinical context for CPT code 20703
Intramedullary drug-delivery devices are antibiotic-loaded implants placed inside the medullary canal of a long bone. The surgeon or qualified health professional mixes the antibiotic with a carrier such as bone cement during the operation. Common forms include cement-coated nails, cement dowels, and bead chains.
The clinical target is bone infection. Devices like these appear in chronic osteomyelitis, infected nonunion, and infection around a previously nailed fracture. They also feature in staged revision arthroplasty, where local antibiotic delivery supports the systemic course.
Removal is almost always one step inside a larger operation. The surgeon reaches the canal, extracts the device, then goes on to debride bone, exchange a nail, or reimplant definitive hardware. That larger procedure supplies the primary code, and 20703 is added to it.
Manual preparation is central to this code family. If the implant arrived prefabricated with the drug already infused, 20700-20705 does not apply. Those devices are reported with the non-biodegradable drug-delivery implant codes, starting at CPT 11981.
Practices running physical therapy practice management or sports medicine software see these patients afterward for rehabilitation. The operating surgeon reports the primary procedure with 20703 attached, and the rehabilitation episode is coded separately.
- Infected nonunion: antibiotic nail removed during exchange nailing of the same bone
- Chronic osteomyelitis: device extracted at the debridement that follows the antibiotic course
- Staged revision arthroplasty: antibiotic nail or spacer removed at the reimplantation stage
- Mechanical failure: fractured or migrated device retrieved during a revision procedure
- Completed treatment course: planned removal performed in the same session as definitive fixation
Reporting CPT 20703 with a primary procedure
20703 is only valid on a claim that also carries a payable primary procedure. List the primary procedure first, then 20703 on its own line beneath it.
CPT pairs 20703 with a long list of primary codes. Examples include 20690 and 20692 for external fixation, the 20802 to 20838 replantation range, and site-specific codes such as 23515, 24516, 25545, and 27245. Check the current code set for the full list, because it changes with each annual update.
Report the code once per anatomic site per encounter. Two devices removed from the same femur still count as one unit of 20703. A second site treated in the same session is reported separately, with laterality documented.
If the removal stands alone with no primary procedure, 20703 is the wrong code. Report CPT 20680 for deep implant removal instead. That single rule prevents a large share of denials on this code.
Billing guidelines for CPT code 20703
Four errors account for most first-submission denials on 20703. The claim omits the primary procedure, the operative report is thin, a modifier is misapplied, or a bundling edit fires.
Bundling edits come from the National Correct Coding Initiative (NCCI), which CMS updates quarterly. Add-on codes are not exempt from those edits, so check the current tables before pairing 20703 with other musculoskeletal codes in one session.
Practice management software like Pabau flags these code-level errors before submission through its claims management software. Practices can also review surgical procedure billing codes for patterns in how operative session documentation affects claim outcomes.
Applicable modifiers for CPT 20703
Modifier logic changes once a code is an add-on code. Most surgical modifiers belong on the primary procedure line rather than on 20703. Review modifier usage in CPT billing for the general principles.
The one absolute rule concerns modifier 51. CPT lists 20703 in Appendix D, the add-on code summary, and add-on codes are exempt from the multiple-procedure concept. Appending 51 to this code is always incorrect, and CMS applies no multiple-procedure payment reduction to it.
Pro Tip
The fastest way to fix a 20703 denial is to read the claim, not the operative note. Confirm that a payable primary procedure code sits on the same claim. Check that no modifier 51 appears on the 20703 line and that the units read one per anatomic site. If the removal genuinely stood alone that day, refile with 20680 rather than appealing.
Medicare and insurance reimbursement for CPT code 20703
Medicare prices 20703 through the Medicare Physician Fee Schedule (MPFS), administered by the Centers for Medicare and Medicaid Services (CMS). Payment is incremental. The value covers the added work of removing the device, on top of what the primary procedure pays.
Two consequences follow from add-on status. The line pays only when the primary procedure is payable, and no multiple-procedure reduction is applied to it. Amounts still vary by facility type, locality, and the geographic practice cost index for each Medicare Administrative Contractor (MAC) jurisdiction.
For current figures, use the CMS Physician Fee Schedule lookup tool directly. Rates change annually on January 1.
Relative value units (RVUs) for 20703 use the same three components as any other MPFS code. Those are work RVU, practice expense RVU, and malpractice RVU. Read them as the increment added to the operative session, not as a self-contained payment for a case.
The FastRVU 2026 RVU lookup tool lists current component values based on CMS data. Review procedure code fee schedules for context on how RVU-based payment structures compare across payer types.
Does Medicare cover CPT code 20703?
Medicare covers 20703 when the primary procedure is covered and the operative report supports the removal. Coverage rides on that primary procedure, so a denial there takes the add-on line with it. Local Coverage Determinations (LCDs) from the MAC with jurisdiction still apply, and no National Coverage Determination governs this code.
- Confirm whether a relevant LCD applies in your MAC jurisdiction before billing
- Commercial payers may set stricter criteria than Medicare, including their own add-on code edits
- Medicaid policies differ by state, so verify with the state program before an elective staged procedure
- Facility and non-facility differentials still appear in the fee schedule, though these devices usually come out in a facility setting
Common ICD-10 codes paired with CPT 20703
Pairing 20703 with the correct ICD-10 diagnosis code is required to establish medical necessity. The same diagnosis usually supports the primary procedure, since the two are billed together. It must reflect the documented clinical reason for removal, not simply the presence of a device.
Use the AAPC CPT-to-ICD-10 crosswalk to identify valid diagnosis pairings for musculoskeletal procedure codes. For background on ICD-10 diagnosis code pairing principles, the same medical necessity logic applies across surgical specialties.
Always code to the highest level of specificity available in the clinical record. If the bone site is documented, use the site-specific code rather than the unspecified variant. Payers routinely flag claims with unspecified codes when the operative note names a specific anatomical location.
Documentation requirements for CPT code 20703
Payer audits for 20703 focus almost entirely on the operative report. The report has to establish two things at once. It must show that a primary procedure took place, and it must describe the device removal in enough detail to justify the add-on line.
Digital clinical documentation tools that capture structured operative data reduce this risk. They standardize the fields a surgeon completes before sign-off, so the detail a coder needs is already there.
- Primary procedure: name the primary operation performed in the same session and how the removal related to it
- Device identification: name the intramedullary drug-delivery device, including the antibiotic and carrier used
- Manual preparation: note that the device was mixed and prepared during surgery rather than supplied prefabricated
- Anatomical site: document the exact bone and side (for example, left femur) and the access approach
- Clinical indication: state the reason for removal, such as a completed course, infection, or mechanical failure
- Fluoroscopy use: if fluoroscopic guidance was used, document it separately as it may support an additional code
- Physician attestation: the operating surgeon must authenticate the note before claim submission
Coders should not assign 20703 from the surgical schedule alone. The signed report must confirm both the device removal and the primary procedure it accompanied. Requesting that report before coding is standard practice for this code family.
CPT code 20703 vs. related codes (20680, 20701, 20705)
The most common error in this range is reaching for 20703 when no primary procedure was performed. The second is mismatching the device’s compartment. Each pair in the 20700-20705 family is tied to one anatomic location.
The dividing line is straightforward. If the note documents a primary procedure in the same session, the add-on removal code applies. If the surgeon opened only to take the device out, 20680 is correct.
20670 covers superficial implant removal and never fits an intramedullary device. The AAPC CPT code search tool confirms the current descriptors across this family.
Pro Tip
A denial that moves 20703 to 20680 is often correct rather than a payer error. Read the claim before you appeal, and ask whether a primary procedure was billed for the same session. If it was, appeal with the operative language naming the drug-delivery device. If it was not, 20680 was the right code from the start.
How Pabau supports accurate add-on code billing
Add-on codes usually fail at the claim assembly step, not at the coding step. A coder picks 20703 correctly, then the line goes out without the primary procedure or with a modifier the payer rejects.
Pabau keeps the operative record and the claim in one system. Documentation templates capture the device, the site, and the primary procedure in structured fields. Claims management then carries those fields straight onto the claim, so nobody retypes them from a scanned note.
The outcome is fewer claims returning for information you already had. Your team spends less time rebuilding operative detail after a denial, and multi-code operative sessions are more likely to pay on first submission.
Catch add-on code errors before claims go out
Pabau keeps operative documentation and claims in one system, so surgical practices can check every add-on line against its primary procedure. See how it works for your team.
Conclusion
Treat 20703 as one line inside a larger operative claim, never as a claim of its own. The parenthetical in its descriptor decides almost everything about how it behaves, from modifier 51 to the global period.
Add-on status both protects the payment and constrains it. There is no multiple-procedure reduction to absorb, but the line dies whenever the primary procedure is missing or denied. That is the trade-off worth remembering on this code.
The work that pays off sits upstream, in the operative report and in how the claim is assembled. Claims management software from Pabau builds those checks into the workflow. Book a demo to see how Pabau keeps surgical coding and documentation aligned.
Continue your research
Managing surgical billing across multiple code families? Practice management software covers how integrated platforms handle claims, scheduling, and documentation in one system.
Need a reference for orthopedic rehabilitation billing after device removal? Physical therapy EMR software explains how post-surgical rehab practices manage billing and care documentation together.
Looking for documentation workflow tools for surgical practices? Digital forms software outlines how structured intake and consent forms reduce documentation gaps in clinical settings.
Frequently asked questions
What is CPT code 20703?
CPT code 20703 is a Category I add-on code for removal of drug-delivery device(s), intramedullary. It covers taking an antibiotic-loaded drug-delivery device out of the medullary canal during another surgical procedure. The descriptor instructs coders to list it separately in addition to the primary procedure code.
Can CPT code 20703 be billed alone?
No. 20703 is an add-on code, so the claim must also carry the primary procedure code performed in the same session. When device removal is the only procedure performed, report 20680 for deep implant removal instead.
What are the Medicare reimbursement rates for CPT code 20703?
Medicare prices 20703 under the Medicare Physician Fee Schedule (MPFS), and the amount is an increment added to the primary procedure’s payment. Rates vary by year, locality, and setting. Add-on codes are not subject to the multiple-procedure payment reduction. Use the CMS Physician Fee Schedule lookup tool at cms.gov for current figures.
What ICD-10 codes are commonly paired with CPT 20703?
Common ICD-10 pairings include T84.498A (mechanical complication of internal orthopedic device) and T84.698A (infection and inflammatory reaction). Others include Z47.2 (encounter for removal of internal fixation device) and M86.9 (osteomyelitis, unspecified). The correct code depends on the documented clinical reason for removal in the operative report.
What is the difference between CPT code 20680 and CPT code 20703?
CPT 20680 covers removal of a deep implant and can be reported on its own. 20703 is an add-on code for removal of an intramedullary drug-delivery device during another procedure. If the removal is the only procedure performed, report 20680. If a primary procedure is performed in the same session, add 20703 to it.
What documentation is required to bill CPT code 20703?
A complete, signed operative report is required. It must name the primary procedure performed in the same session and identify the device removed. It also needs the bone and side, the clinical indication, and any fluoroscopic guidance used. Claims submitted without a complete operative report are routinely denied or audited.
What modifiers can be used with CPT code 20703?
Modifier 51 must never be appended to 20703, because CPT exempts add-on codes from the multiple-procedure rule. Laterality modifiers -LT and -RT apply when the bone is a paired site. Modifiers for increased complexity or a return to the operating room, such as -22, -58, and -78, belong on the primary procedure code.
