In short
When your plan manages drugs with a formulary, dose limits or step therapy, Article 4.070 of the Health Insurance Code requires the insurer to maintain a medical exceptions procedure: you, or your representative, may request approval of a drug not on the formulary, continued coverage of one they will drop for non-health reasons, or an exception to the step therapy requirement or dose limit. What makes this article useful are the deadlines and the bridge coverage. The insurer must notify its determination with the urgency your condition requires and in no case more than forty-eight (48) hours from receiving the request or the medical certification, whichever is later; for controlled drugs, no more than twenty-four (24) hours. And in the meantime: the insurer, the PBM or whoever administers pharmacy services must provide immediate temporary coverage for the initial prescription while the process lasts and until it notifies its final determination in writing, when the physician states in writing that the drug is medically necessary. The law sums it up bluntly: under no circumstance shall the covered person be left without their medication while in the exception or grievance process. If the plan does not decide or notify on time, you are entitled for thirty (30) days to the supply of the drug, and the plan must decide before you finish it.
What is it?
The law describes three things a plan does that block you: the formulary, the list of covered drugs; the dose limit, which covers less than you were prescribed; and step therapy, which requires you to fail first on another drug before covering the one your physician wants. The medical exception is the door against all three. It only applies if the prescriber determines the requested drug is medically necessary because there is no clinically acceptable alternative on the formulary; or because the alternative has been ineffective, or is very likely to be per the clinical evidence, or has caused or is very likely to cause an adverse reaction or other harm; or because you were already at a more advanced step in another plan’s step therapy, making it unreasonable to start again at a lower step.
Who can do it?
Every covered or insured person whose plan provides prescription drug benefits and manages them with a formulary, dose limits or step therapy. The request may be made by the covered person or their personal representative, and must be in writing. Two limits the law sets expressly: the medical exception procedure cannot be used to request coverage of a drug categorically excluded from your plan, and it does not apply in the same way if the insurer has an expedited utilization review procedure and lets you use it to request approval of a drug not covered because of the formulary or another management procedure.
Requirements
- That the prescriber determines the requested drug is medically necessary for one of the reasons the law lists.Verified against the official source
- That the request be in writing, made by the covered person or their personal representative.Verified against the official source
Documents you need
Cost
Step by step
Step 1: Request the medical exception in writing
The request is made by you or your personal representative, and must be in writing. It may be for a drug not on the formulary, for continued coverage of one the plan will drop for reasons other than health or manufacturer supply, or for an exception to step therapy or the dose limit. Date everything: the law’s deadlines run from receipt of the request, or of the medical certification if the insurer asks for it, whichever comes later.
Step 2: Have your physician write the exact reason
The law lists the valid reasons and the certification should use those words: that there is no drug on the formulary that is a clinically acceptable alternative; that the formulary alternative or the one required by step therapy has been ineffective, or per the clinical evidence is very likely to be, or that its efficacy or your adherence will be affected; that it has caused or is very likely to cause an adverse reaction or other harm; that you were already at a more advanced step of step therapy in another plan; or that the dose available under the limit has been or likely will be ineffective.
Step 3: Demand the temporary coverage from day one
This is the part that keeps you from going without treatment. The insurer, the PBM or any entity delegated pharmacy administration must provide immediate temporary coverage for the initial prescription during the request process and until it notifies its final determination in writing, when the physician states in writing that the drug is medically necessary. It must pay the pharmacy for that initial prescription while it adjudicates, and the pharmacy may bill electronically: the insurer must accept the electronic bill and may not require a paper invoice as a condition of payment.
Step 4: Count the 48 hours — or the 24
The determination is notified with the urgency your medical condition requires, and in no case may it exceed forty-eight (48) hours from receipt of the request, or of the certification if the insurer asked for it, whichever is later. For controlled drugs, the term must not exceed twenty-four (24) hours. If they miss it: you are entitled for thirty (30) days to the supply of the drug requested, and the insurer must make the determination before you finish what was supplied. And if it still does not decide before you run out, it must maintain coverage on the same terms and continuously while the drug keeps being prescribed to you and is considered safe for your condition.
Step 5: If it is approved, they cannot price it up
Once the exception is approved, the insurer provides coverage and may not require you to seek approval again for a refill or a new prescription of the same drug, as long as it keeps being prescribed for the same condition and is still considered safe. And there is an express prohibition: the insurer shall not establish a special formulary tier, copay or other cost-sharing requirement applicable only to drugs approved through medical exceptions.
Step 6: If it is denied, demand the denial say why
The denial is notified to you in writing, or electronically if you agreed to receive it that way, and also to the prescriber. The law requires it to state, understandably: the specific reasons; references to the evidence or documentation, including the clinical review criteria, practice guidelines and the clinical, medical and scientific evidence considered; instructions on how to request a written statement of the clinical justification; and a description of the process to file a grievance and appeal, with its deadlines. A denial that does not say those things is incomplete under the text.
Where to do it
The request goes to your insurer or to whoever administers your pharmacy benefit. To appeal, the Code itself points to its Chapter on Internal Grievance Procedures of Health Insurance Organizations. If the problem persists, the Office of the Insurance Commissioner regulates insurers and the Office of the Patient Advocate receives claims. A note for anyone on the Government Health Plan: Act 142-2020 ordered ASES to adopt these same amendments by regulation so they apply equally to the Government Plan, and subjected non-compliance to the same Code sanctions.
How long it takes
The determination is notified with the urgency the medical condition requires and in no case more than 48 hours from receiving the request, or the certification if the insurer asked for it, whichever is later. For controlled drugs, no more than 24 hours.
Verified against the official source · August 23, 2026
What to do if something goes wrong
The usual trap with these laws: Act 142-2020’s PDF is four pages of "Omitted" sections, because the content was inserted into the Health Insurance Code. What we cite comes from Article 4.070 of the Code. One provision deserves separate reading because it is worth money every month: any payment, discount or item from a financial assistance program, discount plan, coupons or manufacturer contribution must be included in the calculation of your cost sharing and your out-of-pocket maximum. Those items are deemed for the patient’s exclusive benefit, and manufacturer coupons and discounts are available and may be used at all health providers regardless of where they were obtained. The law expressly prohibits the use of benefit accumulators, maximizers or any similar program that has the effect of restricting that. If your plan uses one of those, that is what to cite. Two limits that avoid a lost fight: the procedure cannot be used for a drug categorically excluded from your plan, and the insurer may not have to run this procedure if it has expedited utilization review and lets you use it for the same purpose. And what we do not publish: the request and grievance forms, which depend on each insurer and on the Code’s Grievance Chapter, which we did not read here.
Common mistakes
- Looking for the rules in Act 142-2020: its substantive sections are "omitted" and live in Article 4.070 of the Health Insurance Code.
- Leaving the pharmacy without medication: the law requires immediate temporary coverage while the exception is decided.
- Not dating the request or the medical certification, which is where the 48 or 24 hours run from.
- Accepting a denial that gives no specific reasons and does not explain how to appeal.
- Letting them charge a special copay for a drug approved by exception, which the law prohibits.
- Not demanding that manufacturer coupons and discounts count toward your out-of-pocket maximum.
- Requesting the exception for a drug your plan categorically excludes: the law says that is not the procedure.
Frequently asked questions
How long does the plan have to answer me?
With the urgency your medical condition requires, and in no case more than forty-eight (48) hours from receipt of the request, or of the certification if the insurer asked for it, whichever is later. For controlled drugs, the term must not exceed twenty-four (24) hours.
Am I left without the medication while they decide?
No. The law requires the insurer, the PBM or whoever administers pharmacy services to provide immediate temporary coverage for the initial prescription during the process and until the final written determination, when the physician states in writing that the drug is medically necessary. And it says so expressly: under no circumstance shall the covered person be left without their medication while in the exception or grievance process.
And if they do not answer on time?
You are entitled, for a term of thirty (30) days, to the supply of the drug requested, and the insurer must make the determination before you finish it. If it still does not decide before it runs out, it must maintain coverage on the same terms and continuously while the drug keeps being prescribed and is considered safe for your condition, unless the applicable benefit limits are exhausted.
Do manufacturer coupons count toward my deductible?
Per the text, yes: any payment, discount or item from a financial assistance program, discount plan, coupons or manufacturer contribution shall be included in the calculation of your cost sharing and out-of-pocket maximum, and shall be deemed for the patient’s exclusive benefit. Benefit accumulators, maximizers or any similar program that has the effect of restricting it are prohibited.
Can I request it if I already failed another drug on a different plan?
That is one of the reasons the law expressly recognizes: that the covered person was already at a more advanced step in another health plan’s step therapy, making it unreasonable to require them to start again at a lower step.
Official sources
These are the government pages this guide is based on.
- Oficina del Comisionado de Seguros (OCS)
OCS
bvirtualogp.pr.gov
- Office of the Insurance Commissioner
OCS
ocs.pr.gov
- File your claim — Patient Advocate
OPP
www.opp.pr.gov
Last verified
August 23, 2026
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