Open treatment of a proximal tibiofibular joint dislocation with surgical exposure, anatomic reduction, and internal fixation using wires or pins.

Verified May 8, 2026 · 7 sources ↓

Medicare: $716.78
Work RVU: 9.92
Global, days: 90
Region: Foot & ankle

Drawn from CMSAAPCFindacodeAAOS

Documentation requirements

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

Source · Editorial brief grounded in 7 cited references ↓

Confirm the specific joint involved: proximal tibiofibular joint, not distal or ankle joint.
Operative note must name the surgical approach and describe open exposure of the dislocation site.
Document the reduction technique and confirmation of anatomic alignment (intraoperative fluoroscopy or direct visualization).
Specify the fixation hardware used, including wire or pin type, size, and placement.
Record pre- and post-reduction neurovascular status of the extremity.
ICD-10 diagnosis must map to a proximal tibiofibular joint dislocation — mismatched lower leg vs. ankle dislocation codes trigger denials.

Applicable modifiers

Modifiers commonly billed with this code.

Source · AMA CPT modifier descriptors · CMS NCCI Policy Manual

22 Increased complexity 24 Unrelated E/M during global 51 Multiple procedures 57 Decision for surgery 58 Staged or related 59 Distinct service 78 Unplanned return — related 79 Unrelated during global LT Left side RT Right side

What this code covers

Source · Editorial summary grounded in 7 cited references ↓

27832 covers open surgical treatment of a proximal tibiofibular joint dislocation. The surgeon opens the dislocation site, reduces the joint under direct visualization, and stabilizes it with Kirschner wires or similar fixation. This is the highest-intensity code in the proximal tibiofibular dislocation family — it requires both open exposure and internal fixation, distinguishing it from closed or percutaneous approaches.

27832 carries a 90-day global period. The day-before decision visit, the procedure itself, and all routine follow-up through day 90 are bundled. Casting, splinting, and strapping applied at the time of surgery are included and cannot be billed separately — NCCI policy is explicit on this point. If debridement of an open dislocation site is performed, codes 11010–11012 may be reported alongside 27832, but no separate cast/strapping code is permitted in that scenario either.

When concomitant fractures of the tibia or fibula are treated in the same operative session, NCCI bundling rules for multiple fracture/dislocation procedures in the same anatomic region govern what can be separately reported. Document each distinct injury and its treatment to support separate reporting where clinically warranted.

RVU & reimbursement

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

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Work RVU vs. total RVU

The work RVU (9.92) is the surgeon's own effort — the figure physician pay and productivity targets are built on. The total RVU (21.46) adds practice overhead and malpractice, and is what drives the Medicare payment below.

Work RVU	9.92
Practice expense RVU	9.43
Malpractice RVU	2.11
Total RVU	21.46
Medicare national rate	$716.78
Global period	90 days

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

Setting	Medicare rate (national)
Office (PFS non-facility) Procedure performed in physician's office	$716.78
HOPD (APC 5114) Hospital outpatient department	$7,413.38
ASC (PI J8) Ambulatory surgical center (freestanding)	$4,947.12

Common denial reasons

The recurring reasons claims for CPT 27832 get rejected.

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

ICD-10 diagnosis code reflects ankle or distal joint dislocation rather than proximal tibiofibular joint — payer cannot validate anatomic match.
Separate cast or splint application billed in addition to 27832 — NCCI bundles initial immobilization into the procedure code.
E&M service billed on the same day without modifier 57 when the decision for this major surgery was made that day.
Procedure performed and billed during the 90-day global period of a prior related procedure without modifier 78 or 79.
Operative note describes percutaneous or closed technique, conflicting with the open treatment code submitted.

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 7 cited references ↓

01What distinguishes 27832 from closed or percutaneous treatment codes for the same joint?

27832 requires both open surgical exposure and internal fixation with wires or pins. Closed reduction without fixation and percutaneous approaches map to different codes in the 27830–27831 range. The operative note must clearly document the incision and direct visualization to support 27832.

02Can I bill a cast or splint code separately when I apply immobilization after 27832?

No. NCCI policy bundles initial casting, splinting, and strapping into all fracture and dislocation treatment codes. Billing a separate cast code with 27832 will generate an NCCI edit rejection.

03If I remove the fixation wires in a later visit inside the 90-day global, can I bill separately?

Routine hardware removal within the global period is generally bundled. If removal requires a return to the OR and is considered a distinct service, 20670 or 20680 may apply — but document medical necessity carefully and expect payer scrutiny.

04The patient also had a fibular fracture treated in the same session. Can I bill both?

Potentially, with modifier 59 or XS on the secondary code, but NCCI multi-fracture bundling rules apply. If both injuries were stabilized with a single construct, only one fracture/dislocation code may be reported. Separate reporting requires distinct treatment of anatomically distinct injuries — document each separately in the operative note.

05When should modifier 57 be appended to the same-day E&M for this procedure?

Use modifier 57 on the E&M when the decision for surgery was made at that visit and 27832 has a 90-day global period. Without modifier 57, the E&M falls into the global and will be denied as bundled.

06If the patient dislocates the same joint again within the 90-day global and requires repeat open treatment, what modifier applies?

Modifier 78 covers an unplanned return to the OR for a related procedure during the global period. The repeat dislocation repair is related to the original surgery, so 78 is correct. Modifier 79 is reserved for a truly unrelated procedure during the global period — do not use 79 here.

Sources & references

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

Mira AI Scribe

Mira's AI scribe captures the operative approach by name, the joint confirmed as the proximal tibiofibular articulation, fixation hardware details, and intraoperative reduction confirmation from dictation. This prevents the most common audit flag for 27832: an operative note that names only 'lower leg dislocation' without specifying the proximal tibiofibular joint or documenting open exposure, which payers use to downcode to a closed or percutaneous treatment code.

See how Mira captures CPT 27832 documentation