Arthroscopically aided repair of a large osteochondritis dissecans lesion, talar dome fracture, or tibial plafond fracture, with or without internal fixation; arthroscopy is included in this code.

Documentation requirements

What must appear in the operative or office note to support the claim.

Source · Editorial brief grounded in 7 cited references ↓

• Specify the pathology by name — OCD lesion, talar dome fracture, or tibial plafond fracture — and confirm it meets the 'large' threshold for OCD lesions.
• Document the arthroscopic findings with direct description of lesion size, location (talar dome vs. tibial plafond), and cartilage status.
• Record whether internal fixation was used, the type and number of fixation devices placed, and the technique for securing cartilage or bone fragment to its bed.
• Confirm laterality (left vs. right ankle) explicitly in the operative note; this drives LT/RT modifier use.
• Distinguish the procedure from 29891 by documenting that this was a repair or fixation, not merely excision and drilling of a defect.
• Note that fluoroscopy, if used intraoperatively, is integral and should not be listed as a separately billed service.

Applicable modifiers

Modifiers commonly billed with this code.

Source · AMA CPT modifier descriptors · CMS NCCI Policy Manual

What this code covers

Source · Editorial summary grounded in 7 cited references ↓

RVU & reimbursement

Component RVUs and Medicare national rate. Actual payment varies by GPCI locality.

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Payment by site of service

Medicare pays different rates by setting. HOPD typically pays substantially more than ASC for the same procedure.

Source · CMS OPPS Addendum B·ASC HCPCS payment rates·2026

Common denial reasons

The recurring reasons claims for CPT 29892 get rejected.

Source · Editorial brief grounded in CMS NCCI edits, AAOS coding appeals, and cited references ↓

• Bundling with a separately billed ankle arthroscopy code — the arthroscopy is included in 29892 and cannot be reported again for the same session.
• Laterality modifier absent — payers require LT or RT; claims without these modifiers on ankle procedures are frequently rejected.
• Incorrect code selection: using 29891 (excision/drilling) when a repair with or without fixation was actually performed, or vice versa, triggers medical necessity mismatches on audit.
• Fluoroscopy billed separately — NCCI policy treats intraoperative fluoroscopy as integral to arthroscopic procedures; separate reporting is a known edit trigger.
• Post-op E/M visits within the 90-day global billed without modifier 24, resulting in automatic denial for failure to indicate an unrelated condition.