All Medical Billing Modifiers

Browse CPT and HCPCS modifiers with billing explanations, documentation guidance, coding scenarios, and common claim issues.

26-50
51-70
L
G
1-25

Modifier 24- Unrelated Evaluation and Management Service During a Postoperative Period

Modifier 25- Significant, Seperately Identifiable E/M Service

26-50

Modifier 26- Professional Component

Modifier 50- Bilateral Procedure

51-70

Modifier 57- Decision for Surgery

Modifier 59- Distinct Procedural Service

Modifier 58- Staged or Related Procedure or Service by the Same Physician During the Postoperative Period

Modifier 51- Multiple Procedures

Modifier 52- Reduced Services

Modifier 53- Discontinued Procedure

Modifier 54- Surgical Care Only

Modifier 55- Postoperative Management Only

Modifier 56- Preoperative Management Only

71-100

Modifier 79- Unrelated Procedure or Service by the Same Physician During the Postoperative Period

Modifier 91- Repeat Clinical Diagnostic Laboratory Test

Modifier 78- Unplanned Return to the Operating Room During the Postoperative Period

L

Modifier RT- Right Side

Modifier LT- Left Side

G

Modifier GX- Notice of Liability Issued

Modifier GA

Modifier GY- Item or Service Statutorily Excluded

Modifier GZ- Item or Service Expected to Be Denied as Not Reasonable and Necessary

Modifier GG

Waiver of Liability Statement on File

Modifier GQ

Via Asynchronous Telecommunications System

Performance and Payment of a Screening Mammogram and Diagnostic Mammogram on the Same Patient, Same Day

T

Modifier TC- Professional Component

X

Modifier XE- Separate encounter

Modifier XP- Separate practitioner

Modifier XS- Separate structure

Modifier XU- Unusual non-overlapping service

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