Glossary · Clinical

Meniscus repair

Meniscus repair is an arthroscopic surgical procedure that restores a torn knee meniscus by suturing or fixating the torn edges together, preserving the tissue rather than removing it. It is reported with CPT 29882 (one compartment) or 29883 (both compartments).

Verified May 8, 2026 · 6 sources ↓

Drawn from AAPCKzanowCMS

Definition

Source · Editorial summary grounded in 6 cited references ↓

The knee contains two C-shaped fibrocartilage pads—the medial and lateral menisci—that distribute load, stabilize the joint, and cushion the articulating surfaces of the femur and tibia. When a tear occurs in a vascularized zone of the meniscus (typically the outer third), repair is preferred over removal because preserving meniscal tissue reduces long-term risk of cartilage loss and osteoarthritis.

During an arthroscopic meniscus repair, the surgeon accesses the joint through small portal incisions, prepares the tear margins to stimulate healing, and secures the torn segment using sutures, bioabsorbable arrows, or dart-style fixators that the body resorbs over time. The choice between repair and meniscectomy depends on tear location, pattern, tissue quality, patient age, and activity level. Red-white or red-red zone tears in younger, active patients are the strongest candidates for repair.

For billing purposes, CPT 29882 covers arthroscopic repair of one meniscus (medial or lateral), and CPT 29883 covers simultaneous repair of both. These codes do not include chondroplasty performed in the same compartment; however, chondroplasty in a separate compartment of the same knee may be separately reportable. For Medicare patients, HCPCS G0289 captures same-session chondroplasty performed in a different compartment when another knee arthroscopy is the primary procedure.

Why it matters

Selecting repair (29882/29883) versus meniscectomy (29881/29880) is not interchangeable—payers will deny or down-code a repair claim if the operative note describes removal rather than fixation, and vice versa. Because these code pairs share NCCI edits, billing a repair and a meniscectomy for the same compartment on the same day triggers an automatic bundle denial. When a repair is performed on one meniscus and a meniscectomy on the other (e.g., medial repair + lateral meniscectomy), modifier 59 (or XS for anatomic distinction) must be appended to the second code to bypass the NCCI edit and substantiate that the procedures involved distinct anatomic sites. Failure to append the correct modifier—or failure to document the compartment-specific rationale in the operative note—routinely produces underpayment or full denial, both of which are difficult to overturn on appeal without granular surgical documentation.

Common mistakes

Where people most often go wrong with this concept.

Source · Editorial brief grounded in cited references ↓

Billing CPT 29882 and 29881 for the same compartment on the same date without modifier 59/XS, triggering an NCCI bundle denial.
Using 29883 when only one meniscus was repaired—29883 requires documented repair of both the medial AND lateral meniscus.
Separately billing CPT 29877 (chondroplasty) with 29882 or 29883 when the chondroplasty was performed in the same compartment as the repair; NCCI bundles these with a '0' modifier indicator under most payer rules.
Forgetting to substitute HCPCS G0289 for CPT 29877 on Medicare claims when chondroplasty is performed in a different compartment of the same knee during a meniscus repair encounter.
Coding from the MRI or pre-op diagnosis instead of the operative note—repair eligibility and compartment specificity must be confirmed from the surgeon's intraoperative findings.
Appending modifier 50 to 29882 to indicate bilateral knee repairs on the same day instead of billing separate line items with RT and LT modifiers (or following payer-specific bilateral instructions).

Related codes

Codes commonly involved when this concept appears in practice.

CPT

Modifiers

59 Distinct procedural service XS Separate structure LT Left side RT Right side 50 Bilateral procedure

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 6 cited references ↓

01What is the difference between CPT 29882 and 29883?

CPT 29882 covers arthroscopic repair of one meniscus—either medial or lateral. CPT 29883 is used only when both the medial and lateral menisci are repaired during the same operative session on the same knee. Using 29883 when only one meniscus was repaired is a common audit finding.

02Can meniscus repair and meniscectomy be billed together on the same knee?

Yes, but only when performed on different compartments—for example, a medial meniscus repair (29882) and a lateral meniscectomy (29881). Both codes carry an NCCI edit against each other, so modifier 59 or XS must be appended to establish that distinct anatomic sites were treated. Billing both for the same compartment is incorrect and will result in denial.

03Why can't CPT 29877 (chondroplasty) be billed with meniscus repair codes for Medicare in the same compartment?

NCCI bundles 29877 into the meniscal repair codes with a '0' modifier indicator, meaning no modifier can override the bundle when the chondroplasty is in the same compartment as the repair. Medicare recognizes an exception only when chondroplasty occurs in a different compartment of the same knee; in that case, HCPCS G0289 replaces 29877 as the reportable code.

04What documentation is required to support a meniscus repair claim?

The operative note must identify the specific meniscus treated (medial, lateral, or both), confirm that the tear was amenable to repair rather than excision, describe the fixation technique and devices used, and note the compartment of any concurrent procedures. Coding from the pre-operative MRI without intraoperative confirmation is a documented audit risk.

05Which patients are candidates for meniscus repair versus meniscectomy?

Repair is favored for tears in the peripheral vascular zone (red-red or red-white), longitudinal or bucket-handle patterns, younger and more active patients, and when tissue quality is adequate for healing. Meniscectomy is typically chosen for complex or degenerative tears in the avascular inner zone where healing potential is insufficient. The surgeon's intraoperative assessment—not the pre-op imaging—determines which procedure is performed and therefore which code is reported.

Sources & references

Editorial content was developed using the following public sources. Last verified May 8, 2026.

Mira AI Scribe

When Mira captures a meniscus repair encounter, it should flag the following documentation and coding checkpoints: 1. COMPARTMENT SPECIFICITY: The operative note must explicitly state whether the repaired meniscus is medial, lateral, or both. 'Medial or lateral' → CPT 29882. Both in the same session → CPT 29883. 2. REPAIR VS. RESECTION: If the note describes fixation, suturing, or use of bioabsorbable devices, map to 29882/29883. If it describes removal or shaving, map to 29880/29881. Do not infer repair from pre-op MRI language alone. 3. CONCURRENT MENISCECTOMY ON THE OPPOSITE MENISCUS: If the surgeon repaired one meniscus and resected the other (e.g., medial repair + lateral meniscectomy), both 29882 and 29881 may be reported. Append modifier 59 (or XS) to the lower-value code and confirm the operative note documents each compartment as a distinct site. 4. CHONDROPLASTY: If chondroplasty (cartilage debridement) was also performed: - Same compartment as repair → do NOT bill separately. - Different compartment, commercial payer → bill 29877 with modifier 59. - Different compartment, Medicare → substitute G0289 for 29877. 5. BILATERAL SAME-DAY PROCEDURES: Use RT/LT modifiers on separate lines or modifier 50 per payer contract; do not duplicate-bill without a modifier. Mira should prompt the surgeon to confirm compartment(s) treated, fixation method used, and whether any chondroplasty was performed and in which compartment, before claim submission.

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Related terms

Meniscectomy Clinical

Meniscectomy is the surgical removal of all or part of a torn meniscus in the knee, most commonly performed arthroscopically. Partial meniscectomy—excising only the damaged tissue—is the standard approach when the tear is not amenable to repair.

Arthroscopy Clinical

Arthroscopy is a minimally invasive surgical procedure in which a small camera (arthroscope) is inserted into a joint to visualize, diagnose, and treat intra-articular pathology. It serves as both a diagnostic tool and a platform for therapeutic interventions such as debridement, meniscectomy, labral repair, and loose body removal.