99 - JF Part B
Modifier 99
Multiple Modifiers (same line, same code)
Instructions
When more than four modifiers are needed to describe a service on the same code, replace with modifier 99.
Correct Use
- Reflect all modifiers involved in Item 19 narrative or electronic equivalent
- Replace with modifier 99 in Item 24D
- Documentation must explain all modifiers involved
- Includes informational and pricing modifiers
- Certain modifiers may affect payment
Incorrect Use
- In this situation, do not append other modifiers in Item 24D
Claim Coding Example
Patient had a Mohs removal (within 90 day global) on the left cheek and then another on the right cheek (RT) by the same provider, repeated twice (i.e., 79, 59, RT) and not enough modifier spaces.
Treatment Description | CPT/Modifier |
---|---|
Mohs micrographic technique, including removal | 17311 99 |
Resource