Payment formula is performed by taking the base anesthesia procedure units and adding them to the time reported, as well as units for physical status modifiers, qualifying circumstances, and any other allowed units or charges. This sum is multiplied by a conversion factor.

Division of the Current Procedural Terminology (CPT) code book that contains information about anesthesia services.

Surgical time period during a procedure in which an anesthesiologist and anesthetist, or both, participate. The elapsed time is documented and begins when the anesthesiologist prepares the patient for the operation and ends when the patient is taken to the hospital recovery room. Also called anesthesia minutes of service.

Doctor of Medicine (MD) who specializes in anesthesiology, the medical specialty concerned with the pharmacological, physiological, and clinical aspects of anesthesia and related fields.

Study of the administration of anesthesia drugs or gas to produce nerve blocks or loss of sensation in a patient.

Individual who administers anesthesia drugs or gas to a patient before or during an operative procedure.

1. Start of a benefit year for an insured subscriber group; date on which a policy was issued. 2. Date an employee begins a new year of employment. Also called anniversary or policy anniversary.

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The anniversary of the original date of issue of a policy as shown in the declarations.

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US: In policies with a term that exceeds 1 year, the anniversary of the policy inception date. For 1-year policies, this term can also be used to refer to the policy’s renewal date.

Brochures, bulletins, memos, and advertisements used to solicit, enroll, and explain an insurance program.