91  Repeat Clinical Diagnostic Laboratory Test: In the course of treatment of the patient, it may be necessary to repeat the same laboratory test on the same day to obtain ... more subsequent (multiple) test resul

CPT^® Code Modifiers

91 - Repeat Clinical Diagnostic Laboratory Test: In the course of treatment of the patient, it may be necessary to repeat the same laboratory test on the same day to obtain subsequent (multiple) test resul

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