Enforcement Rules of the National Health Insurance Act Article 15

The insured in Category 5 mentioned in Subparagraph 5 of Paragraph 1 of Article 10 of the Act are members as follows:1. The head of a household; and2. Lineal blood relatives and the relatives that have a duty to support each other, while all of them have the same household registration with the head of a household or live together with the head of a household. However, the lineal blood descendants of the head of a household are limited to those who are not yet married.
中文原文 全民健康保險法施行細則第15條
本法第十條第一項第五款所定第五類被保險人,指以下成員:
一、戶長。
二、與戶長同一戶籍或共同生活之直系血親及互負扶養義務之親屬。
但戶長之直系血親卑親屬,以未婚者為限。

English translation for reference only; the Chinese text prevails. Not legal advice.