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HCPCS
Modifiers
X Modifiers
X Modifiers
HCPCS Modifier X1
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HCPCS Modifier X2
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HCPCS Modifier X3
Updated in 2025
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HCPCS Modifier X4
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HCPCS Modifier X5
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HCPCS Modifier XE
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HCPCS Modifier XP
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HCPCS Modifier XS
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HCPCS Modifier XU
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