New Hampshire Medical Consent for a Minor: What Grandparents Need to Know

The Consent Rule for Non-Emergency Care

A grandchild needs to see the pediatrician, and you're the one raising them. The question is whether the doctor's office will accept your consent — and in New Hampshire, the answer depends entirely on what paperwork you have.

RSA 318-B:12-a expressly states that a minor of sound mind who is mature enough to understand the nature and consequences of treatment is not legally incapable of consenting to medical treatment. An informal relative caregiver does not gain decision-making authority merely by providing care; a temporary agent or guardian has only the authority granted by the governing statute and any court order.

That doesn't mean you're stuck. It means you need the right documents.

What Works for Routine Medical and Dental Visits

Parental delegation letter or medical consent form: If the child's parent is reachable and willing, a written authorization specifying that you can consent to routine medical and dental care is the simplest path. Many pediatric offices and dental practices have their own secondary-consent forms for exactly this situation.

RSA 461-A:19-a temporary agent appointment: A parent can formally delegate care powers for up to 60 days, with two witnesses and the agent's written acceptance, subject to the statute's other-parent, parenting-plan, court-placement, and child-protection restrictions. This carries statutory weight, though providers can still exercise discretion.

Court-ordered guardianship under RSA 463: A guardian of the person may give necessary consent for medical or other professional care. The guardian's authority is subject to statutory limits and any limits in the court order.

The gap in the middle — where a parent can't be reached and you have no court order — is where caregivers hit walls. Clinics may refuse anything beyond basic triage in that scenario.

The Emergency Exception

New Hampshire law protects emergency medical care providers and health professionals from civil liability for providing emergency medical services without consent when the patient cannot consent, no legally authorized person is reasonably available, and the provider acts in good faith without knowledge of facts negating consent (RSA 153-A:18).

If a provider tries to delay urgent treatment while they track down a parent, that's a problem you should escalate immediately — request the facility's patient advocate or risk management office.

Vaccinations: A Special Case

RSA 141-C:20-f concerns entry into the state immunization registry, not vaccine consent: it requires explicit written or electronic consent from the patient or a minor's parent or legal guardian before the patient's information is entered. Vaccine exemptions are defined separately in RSA 141-C:20-c. This is one area where a delegation letter or even a temporary agent appointment may not be enough — some providers insist on a parent's direct signature for vaccines.

Under RSA 141-C:20-c, a medical exemption requires certification by a physician, APRN, or physician associate that immunization may harm the child's health and lasts only while that provider considers it detrimental; a parent or legal guardian may claim a religious exemption by signing a form. Registry nonparticipation under RSA 141-C:20-f does not itself create an immunization exemption.

When a Teenager Can Consent on Their Own

New Hampshire law gives minors direct consent rights in specific areas, bypassing the need for any adult's authorization:

• Substance abuse treatment (age 12+): Under RSA 318-B:12-a, minors can voluntarily consent to drug dependency treatment. The statute bars state discovery of the records in criminal prosecutions and limits their use to rehabilitation, research, statistical, or medical purposes unless the treated person consents in writing.
• STD diagnosis and treatment (age 14+): RSA 141-C:18 allows minors to seek diagnosis and treatment without parental knowledge or consent.
• General outpatient therapy: Requires parent or guardian consent. A 2023 legislative effort (House Bill 114) to allow 16-year-olds to consent to mental health treatment without parental permission failed in the Senate.

If you're caring for a teenager who needs substance treatment or STD care, the teen's own consent is legally sufficient. You don't need to be involved, and the provider may not be able to tell you about it.

Building Your Medical Consent Toolkit

The most effective approach combines multiple documents:

1. A temporary agent appointment under RSA 461-A:19-a (if a parent can sign)
2. Provider-specific secondary consent forms from the child's pediatrician and dentist
3. A HIPAA release form signed by the parent, authorizing you to access the child's medical records
4. The child's immunization records, insurance cards, and medical history

The School and Medical Consent Guide for New Hampshire includes a medical intake worksheet and a healthcare provider question checklist that covers exactly what to prepare before each appointment.

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