Quick Facts
Status
TC
Modifier TC
Technical Component
Active
Global Period
Not Applicable
Modifier
TC
Applies To
Technical Component of a Service
Category
Use With
Professional & Technical Components
CPT Codes
What is Modifier TC?
Modifier TC indicates that only the technical component of a procedure or diagnostic service is being reported. The technical component includes the equipment, supplies, technician, and facility resources required to perform the service but does not include the physician's interpretation.
Modifier TC should only be reported when the technical portion of a service is billed separately from the professional component.
When to Use
Only the technical component of a diagnostic service is being billed.
The physician interpretation is reported separately.
The provider owns or operates the equipment used to perform the service.
The CPT code has separate professional and technical components.
Payer guidelines allow separate billing of the technical component.
Documentation Requirements
Document the diagnostic test performed.
Identify the technical services provided.
Maintain equipment and technician records when applicable.
Support medical necessity for the service.
Retain complete medical documentation.
Examples
Example 1
An independent imaging center performs a chest X-ray and bills only for the equipment, technician, and imaging services. The physician's interpretation is billed separately. Modifier TC is appended to the CPT code.
Example 2
A diagnostic facility performs an electrocardiogram and reports only the technical portion of the service because the interpretation is completed by another physician. Modifier TC is appropriate.
Billing Tips
Use TC only when billing the technical component.
Do not report TC when billing the global service.
Verify that the CPT code allows separate technical and professional billing.
Follow Medicare and payer-specific billing guidelines.
Ensure documentation supports the technical services performed.
Common Billing Mistakes
Reporting TC when billing the global service.
Billing both the professional and technical components inappropriately.
Using TC on codes that are not split into professional and technical components.
Failing to document the technical services performed.
Reporting TC when payer policy does not allow separate billing.
Related Modifiers
Modifier 26
Professional Component
Modifier 59
Distinct Procedural Service
Modifier 76
Repeat Procedure by Same Physician
Additional Resources
CPTCodeGuide provides a concise reference for Modifier TC. For detailed billing guidance, documentation requirements, examples, diagnostic coding rules, and modifier comparisons, visit ModifierLookup.com for the complete Modifier TC guide.
