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Significant, separately identifiable E/M service on the same day

Distinct procedural service separate from other performed procedures

Repeat clinical diagnostic laboratory test performed on the same day

Unrelated E/M service during a postoperative period

Decision for surgery resulting in a major procedure

Separate encounter distinct from other services performed

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E/M Modifiers

Modifiers used with evaluation and management services

Modifiers related to surgical and operative procedures.

Modifiers specific to Medicare billing and compliance

Surgical Modifiers
Medicare Modifiers
HCPCS Modifiers

Modifiers used with HCPCS Level II procedure codes

Radiology Modifiers

Modifiers for imaging and radiology-related services

X Modifiers

Distinct services, encounters, practitioners, and structures

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Modifier 25 vs 29

Understand the differences between E/M and procedural modifiers

Compare postoperative and separately identifiable E/M services

Learn when to use separate encounter versus separate structure modifiers

Modifier 24 vs 25
Modifier XE vs XS

Side-by-side comparisons to help you understand modifier differences

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