Question

The modifier "-AA" is an example of what type of modifier?

a. CPT

b. HCPCS

c. ICD-10-CM

d. None of the above

Answer 1

The "-AA" modifier is a HCPCS Level II modifier used to indicate that an anesthesia service was performed personally by an anesthesiologist. It is different from CPT codes, which describe procedures and services, and ICD-10-CM codes, which relate to diagnoses.

Step-by-step explanation:

The modifier "-AA" is an example of a HCPCS Level II modifier. These modifiers are used to provide additional information about services rendered and are often used in billing Medicare and other insurance companies. The HCPCS (Healthcare Common Procedure Coding System) is used to report medical procedures and services.

It is distinct from the CPT (Current Procedural Terminology) codes, which are used to report procedures and services by healthcare professionals, and ICD-10-CM codes, which are used for diagnosing diseases. The "-AA" modifier specifically indicates that an anesthesia service was performed personally by an anesthesiologist.