Appl unipln uni ext fixj sys

CPT code 20690 covers the application of a uniplanar (single-plane) external fixation device, a metal frame attached to bone through the skin to stabilize fractures or correct deformities. This is typically used for complex fractures that cannot be treated with casts or simple internal fixation.

Showing rates for

National Average

Base Medicare rate

$589.03

This calculator gives a typical-case estimate using standard Medicare modifier rules. Actual payment depends on payer policies, documentation, code-specific CMS status indicators, and locality. Verify before billing.

RVU breakdown

Work RVU

8.78

PE RVU (NF)

7.71

MP RVU

1.72

Total RVU

18.21

Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High

NCCI bundling edits

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Billing tips

Document device manufacturer, model number, and number of pins/wires used in operative report to support uniplanar vs multiplanar distinction
Impact: Prevents downcoding to unlisted code or denial; protects full $589.03 reimbursement
Verify 20690 is not bundled with primary fracture treatment codes (27500-27514 series) by checking NCCI edits; bill separately only when fixation is distinct service
Impact: Avoiding bundling errors can preserve $589.03 payment versus $0 if incorrectly bundled
Always append laterality modifier (LT/RT) on initial claim submission; most payers automatically deny without it
Impact: Prevents 100% denial and 30-45 day payment delay for resubmission
Bill facility and non-facility rates identically at $589.03; verify place of service code (21-24 for hospital, 11 for office) matches claim form
Impact: Incorrect POS code can trigger audit or recoupment even though rates are identical for this code
For trauma cases, link to appropriate high-severity fracture ICD-10 codes (open fractures, displaced fractures) to support medical necessity
Impact: Strong diagnosis linkage reduces denial risk by 40-60% and supports any modifier 22 claims
Separately bill for frame removal (20694) when performed in different operative session; do not assume included in 90-day global
Impact: Frame removal typically reimburses at $200-300 additional when billed separately and appropriately timed

Common denials

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Frequently asked questions

What is the Medicare reimbursement rate for CPT code 20690 in 2025?

The 2025 Medicare national average reimbursement for CPT 20690 is $589.03 for both facility and non-facility settings. This rate is based on 18.21 total RVUs multiplied by the 2025 conversion factor of 32.3465.

What is the difference between CPT 20690 and 20692?

CPT 20690 covers application of a uniplanar (single-plane) external fixation system, while 20692 describes a multiplanar system that stabilizes bone in multiple planes. The key documentation distinction is the number of planes of correction: uniplanar devices stabilize in one anatomical plane, while multiplanar systems provide stability in two or more planes.

Can CPT 20690 be billed with fracture treatment codes on the same day?

It depends on NCCI edits and payer policies. Generally, external fixation application may be separately reportable from fracture reduction/treatment if it represents a distinct procedural service. Check current NCCI edits, and when appropriate, append modifier 59 or XS to indicate the fixation was a separate, medically necessary service beyond the fracture care.

How many RVUs is CPT code 20690 worth?

CPT 20690 has a total of 18.21 RVUs for 2025, consisting of 8.78 work RVUs, 7.71 practice expense RVUs, and 1.72 malpractice RVUs. Both facility and non-facility PE RVU values are identical at 7.71.

Is modifier LT or RT required when billing CPT 20690?

Yes, laterality modifiers (LT for left, RT for right) are required when billing CPT 20690 for extremity procedures. Most payers will automatically deny claims for this code without appropriate laterality designation, as it is an inherently lateral procedure.

Does CPT 20690 have a 90-day global period?

Yes, CPT 20690 is a major surgical procedure with a 90-day global period. This means routine follow-up care related to the external fixation application is included in the reimbursement, but complications, unrelated procedures, or planned staged procedures may be separately billable with appropriate modifiers (78, 79, or 58).

When should I bill CPT 20694 instead of including frame removal in the global period?

Bill CPT 20694 (removal of external fixation system) separately when removal occurs in a setting requiring return to the operating room or when performed after the 90-day global period of 20690 has expired. Routine removal in the office during the global period is typically included, but complex removals requiring anesthesia and OR resources are separately reportable with modifier 58 if during global period.