XS - JE Part A
Modifier XS
Definition
Separate Structure, A Service That Is Distinct Because It Was Performed on A Separate Organ/Structure
Appropriate Usage
- Append when coding pairs are part of National Correct Coding Initiative (NCCI) procedure to procedure edits
- Append when documentation indicates services were provided on different organs/structures
- Append to Column 2 procedure code in NCCI files
- Append only when there is no other modifier to describe situation
Inappropriate Usage
- Appending when code pairs are not part of the NCCI procedure to procedure edits
- Appending if another valid modifier exists to identify separate services
- Submission of E/M Codes
- Submission of Weekly radiation therapy management codes (CPT 77427)
- NCCI code files show modifier application as "0"
- Appending when documentation does not support the services were provided on a separate organ/structure
- Example: both procedures were performed on liver during a single encounter
- Exact same procedure code performed twice on same day
- Multiple administration of injections of same drug
- Submitted with Modifier 59
Additional Information
- National Correct Coding Initiative Edits
- CMS Change Request (CR) 8863 - Specific Modifiers for Distinct Procedural Services
- MLN Fact Sheet Proper Use of Modifiers 59 & –X{EPSU}