33-22-246. Preexisting conditions relating to individual market. (1) Except as provided in subsection (2), a health insurance issuer offering individual health insurance coverage may not exclude coverage for a preexisting condition unless: (a) medical advice, diagnosis, care, or treatment was recommended to or received by the participant or beneficiary within the 3 years preceding the effective date of coverage; and (b) coverage for the condition is excluded for not more than 12 months. (2) A health insurance issuer offering health insurance coverage may not impose a preexisting condition exclusion on a federally defined eligible individual because of a preexisting condition. History: En. Sec. 37, Ch. 416, L. 1997.
Montana Legal Code
§ 33-22-246
Source: https://mca.legmt.gov/bills/mca/title_0330/chapter_0220/part_0020/section_0460/0330-0220-0020-0460.html· Version 2025