CPT code 29883 – Meniscus repair, medial and lateral

Key takeaways

CPT 29883 requires a suture repair of both the medial and lateral menisci in the same session. A repair of one meniscus is coded 29882.

Repair (suturing) and resection (meniscectomy) are not interchangeable. Billing 29883 when only debridement or removal was performed is a top audit trigger.

CPT 29883 carries a 90-day global surgical package. Post-op visits within that window are bundled unless a modifier exception applies.

Practice management software like Pabau submits 29883 claims through Claim.MD, checks eligibility in real time, and tracks each claim through to remittance.

CPT code 29883: official descriptor and procedure overview

CPT code 29883 is defined by the American Medical Association as “Arthroscopy, knee, surgical; with meniscus repair (medial AND lateral).” Two conditions must both be true for the code to apply. The procedure was performed arthroscopically, and the surgeon repaired (sutured) both menisci during the same operative session.

Clinically, the surgeon inserts an arthroscope through small portals and visualizes the tear in each compartment. Sutures, anchors, or an all-inside repair device then reapproximate the meniscal tissue. The surgery typically addresses acute bucket-handle tears or peripheral longitudinal tears that retain adequate vascular supply for healing. Degenerative complex tears are generally not repaired; payers may scrutinize those claims for medical necessity.

Key code facts at a glance

How 29883 differs from 29880, 29881 and 29882

The 298xx family covers both repair and resection (meniscectomy) of the medial and lateral menisci. Repair means suturing torn tissue, while resection means removing it. Two questions settle the choice: was the tissue sutured or removed, and was one meniscus treated or both?

Common cross-coding error: Surgeons who repair the medial meniscus and debride (not repair) the lateral meniscus sometimes submit 29883. That is incorrect. Only a suture repair of both menisci qualifies. When one meniscus is repaired and the other is only debrided, 29882 applies for the repair. Debridement codes such as 29877 may apply separately, subject to NCCI edits.

ICD-10 diagnosis codes that support medical necessity

Selecting a non-specific ICD-10-CM code is one of the top denial triggers for CPT code 29883 claims. Payers require laterality and, where applicable, acuity to confirm medical necessity. Use the most specific code available based on the operative and imaging findings.

Code the specific meniscus (medial or lateral) whenever imaging and operative findings allow. Payers look for that ICD-10 specificity before they authorize high-value arthroscopy claims. Our ICD-10-CM codes reference covers the diagnosis side of these claims in more depth.

Documentation requirements: what the operative report must include

A complete operative report is the first defense against a post-payment audit for CPT code 29883. Payers downcode to 29882 when the note does not clearly describe repair of both menisci. The following elements must appear explicitly in the operative note.

• Confirmation of bilateral repair: The surgeon must state that both the medial and lateral menisci were repaired, not merely visualized or debrided. Phrases like “medial meniscus suture repair performed” and “lateral meniscus all-inside repair performed” provide clear evidence.
• Suture technique documented: Specify the repair method for each compartment (e.g. inside-out sutures, all-inside device, outside-in technique). Generic “meniscal work performed” language is insufficient.
• Scope portal placement: Anterolateral and anteromedial portal placement should be documented to confirm the arthroscopic approach.
• Tear characterization: Describe the tear pattern (bucket-handle, longitudinal, radial), location (posterior horn, body, anterior horn), and extent for each meniscus. This supports medical necessity when payers audit.
• Post-repair findings: Document stability testing of the repaired tissue and confirm vascular zone of the tear (red-red, red-white) to support repair candidacy over resection.

Structured operative note templates help here. When each surgical step maps to the documentation 29883 needs, under-documentation gets caught at dictation rather than at claim submission.

Prior authorization and payer coverage policies

Most commercial payers require prior authorization for CPT code 29883. Medicare does not require prior auth for knee arthroscopy, but Medicare Advantage plans may. Check each plan’s specific policy before scheduling.

Typical medical necessity criteria across major commercial payers include:

• MRI confirmation: An MRI of the knee (CPT 73721) documenting meniscal pathology is typically required. Many payers will not authorize 29883 without a pre-operative MRI in the record.
• Conservative treatment failure: Documentation of at least 4-6 weeks of conservative management (physical therapy, NSAIDs, activity modification) before surgical referral. The exception is an acute, displaced tear, such as a locked bucket-handle knee.
• Acute vs degenerative tear: Some payers, including some Medicare Advantage plans, exclude purely degenerative meniscal tears from coverage for repair. Their policies limit coverage to traumatic or acute tears. Always verify payer-specific local coverage determinations (LCDs).
• Bilateral tear documentation: The authorization request must explicitly state that both menisci are torn and that both are candidates for repair. Authorization for a single-compartment repair does not automatically cover 29883.

Modifiers used with 29883, and when to apply them

Modifier selection for CPT code 29883 directly affects reimbursement and claim acceptance. The code is not inherently bilateral in the sense of two separate procedures on two body parts; it describes work within one knee joint. RT and LT modifiers designate which knee was operated on, not the two compartments within it.

Confirm modifier requirements with AAPC’s CPT code reference and your specific payer contracts. Some payers accept modifier XS (separate structure) in place of 59 for NCCI override situations. Whichever modifier you append, the operative note has to support it on its own.

Medicare reimbursement and the 2026 fee schedule

CPT code 29883 reimbursement under Medicare is calculated using the Resource-Based Relative Value Scale (RBRVS). The CMS Physician Fee Schedule lookup tool provides the most current national rates. Rates vary by geographic practice cost index (GPCI) and are updated annually on January 1.

The table below shows where each 2026 rate for CPT 29883 comes from. The same CMS lookup lists the work, practice expense, and malpractice RVU components for your locality.

Global period, post-op visits, and billing during the 90-day window

CPT code 29883 carries a 90-day global surgical package under the Medicare Physician Fee Schedule. All routine post-operative care during that window is bundled into the procedure fee and cannot be billed separately.

What is included in the global package:

• The pre-operative visit on the day of surgery
• All intra-operative services
• All routine post-operative visits within 90 days related to the repair

What can be billed separately during the global period:

• Modifier 24 (unrelated E/M service): An office visit for a condition completely unrelated to the knee surgery. The medical record must document a separate diagnosis.
• Modifier 58 (staged procedure): A planned return to the operating room for a staged procedure related to the original surgery (e.g. second-look arthroscopy). Must be planned, not a complication.
• Modifier 78 (related complication): Return to the OR for a complication during the global period. A complication, not a staged procedure.
• Modifier 79 (unrelated procedure): An unrelated surgical procedure performed during the global period.

Tracking global periods across a busy orthopedic practice takes a billing system that flags open global windows and prompts the correct modifier. That monitoring prevents overbilling (a post-op visit submitted inside the global without a modifier). It also prevents underbilling, such as a missing modifier 24 on an unrelated visit.

Electronic remittance advice (ERA) from the payer returns a CO-97 adjustment code when a bundled service is submitted inside an open global. Monitoring ERA data is the fastest way to catch systemic global period errors.

NCCI edits and bundling: what can’t be billed with 29883

The National Correct Coding Initiative (NCCI) establishes column 1/column 2 edit pairs that control which procedure codes can be billed together. For CPT code 29883, several commonly performed companion procedures trigger bundling edits. Verify the current quarterly NCCI edit table via CMS, as bundling pairs change.

Scrub every claim against the current NCCI edit tables before submission. Submitting a 29883 + 29877 pair without modifier 59, where the edit allows an override, results in an automatic CO-97 denial. A claim-build checklist that pairs procedure codes with their modifier flags catches these conflicts before the denial arrives.

Can 29883 be billed with 29888 for ACL reconstruction?

Yes, CPT 29883 can generally be billed with CPT 29888 when both procedures are performed in the same session. CPT 29888 covers arthroscopically aided anterior cruciate ligament repair, augmentation, or reconstruction. Modifier 59 is typically required to bypass the NCCI edit that would otherwise bundle them.

ACL reconstruction combined with repair of both menisci is common after acute sports knee injuries. It is also a high-denial claim when documentation is incomplete.

What the operative report must explicitly state to support both codes:

• That ACL reconstruction and meniscal repair are separate, distinct procedures performed in the same operative session
• The graft source, tunnel placement, and fixation for the ACL component (29888-specific documentation)
• The suture repair technique for each meniscus (29883-specific documentation)
• That the meniscal repair was not simply debridement incidental to ACL work

Some payers add a further medical necessity requirement. The meniscal tears must be documented as repairable (peripheral, vascular zone tears) on pre-operative MRI, not just noted intraoperatively. Verify payer-specific clinical criteria before scheduling combined procedures without pre-authorization for both components.

Common denial reasons and how to avoid them

Billing staff who understand the specific denial patterns for CPT code 29883 resolve claims faster and reduce write-offs. These are the most frequent denial triggers.

1. Only one meniscus repaired, 29883 billed: The most common error. If the operative report documents repair of only the medial or only the lateral meniscus, bill 29882. Build a pre-submission check that confirms the code matches the number of menisci repaired.
2. Debridement coded as repair: Surgeons sometimes document “medial and lateral meniscal work” without specifying sutures. Auditors downcode to 29877. Require dictation templates that use the word “repair” and name the suture technique.
3. Missing prior authorization: The procedure was authorized for a single-compartment repair, or no auth was obtained at all. Always verify auth covers both compartments before the case is scheduled.
4. Non-specific ICD-10 code: Submitting M23.209 (unspecified meniscus, unspecified knee) instead of a laterality-specific code triggers medical necessity review. Use the most specific code available.
5. NCCI bundling conflict without modifier: 29883 billed with 29877 without modifier 59 (or XS where applicable). Correct with a modifier and resubmit with the operative note.
6. Wrong modifier or no modifier: Missing RT or LT causes system-level rejection at many payers. Missing modifier 51 on secondary procedures reduces reimbursement to zero instead of the 50% rate.

How Pabau keeps 29883 claims moving from submission to payment

In many orthopedic practices, a coder rebuilds the 29883 claim from the operative note by hand. Someone then checks its status in a payer portal and logs the result in a spreadsheet. Each hand-off is another chance to drop the RT or LT modifier.

Practice management software like Pabau removes those hand-offs. Its claims management software pre-fills each claim from the codes, modifiers, and diagnoses already on the patient record. Claims then go to payers through the Claim.MD integration, which also checks eligibility in real time.

Claim status and remittances flow back into the same record. A short-paid or denied 29883 claim shows up while there is still time to correct or appeal it. Code selection and NCCI checks stay with your coders, backed by the documentation habits above.

Submit and track orthopedic claims in one place

Pabau pre-fills claims from the patient record, submits them through Claim.MD, and tracks status and remittances. Your team spots a denied 29883 claim while there is still time to appeal.

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Conclusion

CPT 29883 is only correct when the operative note proves two suture repairs in one knee. Check the note against the code grid above before you submit. If only one meniscus was sutured, the claim is 29882.

The work that protects this claim happens upstream. A dictation template that names the repair technique for each meniscus, plus an authorization that covers both, heads off the downcodes and denials described here.

The trade-off is a slightly longer operative note in exchange for fewer corrected claims. Book a demo to see how Pabau tracks orthopedic claims from submission to remittance.

Continue your research

Need a framework for managing surgical claim denials? Denial codes in medical billing covers the most common CARC codes returned on rejected surgical claims and how to action each one.

Wondering how clearinghouse submission works end to end? 837 file submission explains how electronic claims are structured, validated, and transmitted to payers through a clearinghouse.

Removing torn tissue from one meniscus instead of suturing it? CPT code 29881 covers single-compartment meniscectomy and how it is documented.

Resecting both menisci in the same session? CPT code 29880 explains the medial and lateral meniscectomy code that sits alongside 29883.

Frequently asked questions