Legal services insurance provides for the mental and emotional welfare of human beings by defraying the costs of legal services; it shall be deemed to be accident and health insurance and shall be classified this way for the purposes of chapters 34.1 and 34.3 of this title. Legal services insurance may only be written pursuant to the provision of this chapter. Except to the extent expressly provided in this chapter, nothing in any other chapter of this title regulating the form, content, or provisions of accident and health insurance policies or the filing and approval of these policies including premium rates shall apply to legal services insurance policies written under and subject to the provisions of this chapter.