Modifier TC
Technical component — equipment, technician, and supplies only (no physician interpretation)
✅ When to Use Modifier TC
When the facility provides the equipment and technician but the physician interpretation is billed separately with modifier 26.
⛔ When NOT to Use Modifier TC
Do NOT use if the same entity performs AND interprets.
Coding Tips for Modifier TC
Real-world specialist guidance from the PayerReady Medical Coding Team, including audit triggers, denial patterns, and payer policy variations.
Technical component only. Mirrors modifier 26 for the equipment and technician side. Hospitals bill TC under OPPS via APCs, not modifier TC, so this is primarily for freestanding facilities and IDTFs.
Modifier TC FAQ
What does modifier TC mean? +
Technical component — equipment, technician, and supplies only (no physician interpretation)
When should I use modifier TC? +
When the facility provides the equipment and technician but the physician interpretation is billed separately with modifier 26.
When should I NOT use modifier TC? +
Do NOT use if the same entity performs AND interprets.
What documentation is required for modifier TC? +
Complete chart documentation supporting the modifier's clinical or billing rationale.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 16, 2026.
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