BCBS covered anesthesia Modifier list

Anesthesia Modifiers

Modifiers are two-digit indicators that are used with a procedure code to add specific meaning to a service provided. Every anesthesia administrative code billed to BCBSF must include a modifier. More than one modifier can be submitted per detail line; however, the BCBSF claims system will adjudicate the claim based only on the first modifier submitted.

Primary Anesthesia Modifiers

Modifier	Description	Modifier Allowance Adjustment
AA	Anesthesia services performed personally by the anesthesiologist	100%
AD	Modifier AD (medical direction of five or more concurrent anesthesia procedures by an anesthesiologist) is not recognized by BCBSF for reimbursement except for Medicare Advantage products.	0%
QK	Medical direction (by anesthesiologist) of two, three or four concurrent procedures by qualified personnel	50%
QY	Medical direction of one CRNA/AA by an anesthesiologist	50%
QX	CRNA/AA service with medical direction by an anesthesiologist	50%
QZ	CRNA service without medical direction by an anesthesiologist	100%