Laboratory Modifiers

Browse anesthesia modifiers used to report anesthesia services, medical direction, supervision, monitored anesthesia care, and anesthesia billing requirements.

Laboratory Modifiers 90-100
90

Reference (Outside) Laboratory

Identifies laboratory tests performed by an outside reference laboratory for billing.

92

Alternative Laboratory Platform Testing

Identifies eligible laboratory tests performed using portable alternative testing platforms.

Q Modifiers
QP

Individually Ordered Laboratory Tests

Identifies individually ordered laboratory tests and panels

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