a. Diagnostic and evaluation services
Unless excluded by section 1862(a)(7) of the law, these services are covered if they are reasonable and necessary. The speech pathologist employs a variety of formal and informal language assessment tests to ascertain the type, casual factor(s), and severity of the speech and language disorders. Reevaluation would be covered only if the patient exhibited a change in functional speech or motivation, clearing of confusion, or the remission of some other medical condition which previously contra-indicated speech pathology. However, monthly reevaluations, e.g., a Porch Index of Communicative Ability (PICA) for a patient undergoing a restorative speech pathology program, are to be considered a part of the treatment session and could not be covered as a separate evaluation for billing purposes.