Final answer:
The statement is false; family members typically receive distinct patient numbers, not a prefix modifier to a household number in health record systems.
Step-by-step explanation:
The statement in the question is false. In the context of family numbering systems used in health records, each family would indeed be assigned a unique identifier often referred to as a 'household patient number'. However, the subsequent individual family members would usually receive their own distinct patient numbers rather than a modifier that serves as a prefix to the household number. Therefore, the description provided in the question does not accurately represent the typical practice in family numbering within health record management.