While this depends on your specific HSA or FSA administrator’s policies, we strongly advise that you only submit expenses incurred on or after the date listed on your Letter of Medical Necessity.
If you already have an active Premium Subscription to the Happiest Baby App and want future payments reimbursed, we recommend applying for your LMN as soon as possible to ensure coverage within the valid date range.
Disclaimer: The information on our site is NOT medical advice for any specific person or condition. It is only meant as general information. If you have any medical questions and concerns about your child or yourself, please contact your health provider.