Question

which cpt modifier is used when multiple modifiers are needed? 57 59 90 99

Explanation:

CPT (Current Procedural Terminology) modifiers are used to provide additional information about a procedure or service. Modifier 99 is used when multiple modifiers are needed. Modifier 57 is used for decision for surgery. Modifier 59 is used to identify distinct procedural services. Modifier 90 is used for reference (outside) laboratory.

Answer:

99