08/25/2025
đź’ˇ **Billing Tip of the Day: Q6 Modifier** đź’ˇ
Do you know when to use the **Q6 modifier**?
Q6 is used when a **locum tenens provider** (a temporary provider filling in for another) sees a patient **on behalf of the regular physician**.
👉 **When to use Q6:**
* When the regular provider is **unavailable** (vacation, illness, maternity leave, etc.).
* The substitute provider is **not an employee** of the group but is covering **on a temporary basis**.
* The service is billed under the **regular provider’s NPI**, with the Q6 modifier attached to the CPT code.
* Coverage is limited to **60 consecutive days** (unless extended due to active military duty).
âś… Example: If Dr. Smith is out for surgery and Dr. Jones temporarily covers her patients, bill under Dr. Smith with modifier Q6.
⚠️ **Don’t confuse this with Q5 (reciprocal billing)**, which applies when providers cover each other under an agreement.
Understanding the proper use of modifiers like Q6 keeps your claims clean and your payments accurate! đź’µ