App mltpln uni xtrnl fix 1st
CPT code 20696 covers the application of a multiplane (multiple directional) unilateral (one-sided) external fixation device, which is a metal frame attached to bones with pins or wires to stabilize fractures from the outside of the body.
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
Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High
NCCI bundling edits
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Billing tips
Document the specific multiplane configuration in operative report—specify the number of pins/wires, their orientations in different planes, and the complexity of the frame construction
Impact: Prevents downcoding to simpler uniplanar codes (20690-20692) which reimburse $600-900 less
Bill additional bone/segment applications with CPT 20697 (add-on code) when applying external fixation to multiple bones in same operative session
Impact: CPT 20697 adds approximately $500+ per additional segment; common in polytrauma cases
Always append LT or RT modifier based on laterality as this is a unilateral procedure code; bilateral applications require two line items with appropriate modifiers
Impact: Claim rejection without laterality modifier; bilateral cases can yield double reimbursement ($2279.78 total)
Do not separately bill for pin placement (20650) as it is included in the external fixator application code
Impact: Unbundling results in denial and potential audit flags; avoid $200-300 incorrect billing
Verify that documentation clearly states 'first bone/segment' to support primary code 20696 rather than add-on code 20697
Impact: Incorrect code selection results in denial as 20697 cannot be billed alone; requires primary code support
For facility billing, note that facility and non-facility rates are identical at $1139.89, but verify separate billing for implants and supplies using appropriate HCPCS codes
Impact: External fixation devices cost $2000-8000; ensure separate reimbursement through supply channels
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