Do Letters of Medical Necessity (LMNs) Expire?

Short Answer
Yes. An LMN is typically valid for 12 months from its issue date (sometimes listed as the “Intervention Start Date”). Any HSA/FSA-eligible purchases made after the LMN’s issue date and before its expiration date should be covered—provided you have sufficient HSA/FSA funds.

• 12 Months from the Date of Issue
  The LMN you receive is valid for one year. For example, if your LMN is dated January 1st, it is considered valid through December 31st of the same year (inclusive), barring any specific restrictions from your HSA/FSA administrator.

• Purchases Within That Timeframe
  Any eligible product or service bought between the LMN’s start date and its expiration date can be reimbursed through your HSA/FSA—assuming your account has enough funds.

• One-Time Purchases
  If you only needed the LMN to purchase a single item (e.g., a Treadmill), then renewal is not required after your purchase—unless you need to buy the same or related items again after the LMN expires.

• Ongoing Purchases
  If you plan to make repeated or long-term purchases (e.g., supplements or other recurring purchases) under your HSA/FSA, you’ll need to renew your LMN each year once it expires.

• Retake the Clinical Intake Survey
  If your LMN is about to expire, simply contact Truemed support at support@truemed.com to request the link to retake our clinical intake survey. Once completed, we can issue an updated LMN if you qualify.

If your LMN is nearing expiration, you need to retake the assessment, or you have questions about specific items covered under HSA/FSA, we’re here to help. Reach out to Truemed Support at support@truemed.com for more information or to request a new survey link.