South Carolina Healthcare Consent for Adults with Disabilities: POA, the Adult Health Care Consent Act, and Surrogate Priority

The day your child turns 18, you lose the automatic legal authority to make their medical decisions. Hospitals, doctors, and emergency rooms will look to the young adult for consent — not the parent. For families of adults with intellectual or developmental disabilities, this creates real fear: what happens if your son or daughter cannot communicate with the ER doctor at 2 a.m.?

South Carolina provides two mechanisms that handle most situations without requiring guardianship.

The Healthcare Power of Attorney

Under S.C. Code § 62-5-504, any adult who has the capacity to understand the nature and consequences of a legal document can execute a Healthcare Power of Attorney (HCPOA). This designates an agent — typically a parent — to make medical decisions if the young adult becomes temporarily or permanently unable to provide consent.

A durable HCPOA remains effective even if the principal later loses capacity, which makes it the default choice for families whose adult child can understand what delegation means at the time of signing. No court proceeding, no filing fee, no annual reporting. The document can be prepared by an attorney or using a standardized form, and it takes effect only when the young adult cannot consent for themselves.

The Adult Health Care Consent Act (S.C. Code § 44-66-30)

For adults who lack the capacity to sign a Healthcare POA, South Carolina's Adult Health Care Consent Act provides a statutory surrogate decision-making framework that can operate without a new court proceeding. When a healthcare provider determines that a patient cannot consent, the Act authorizes a surrogate to make medical decisions based on the following priority list:

1. Court-appointed guardian (if one exists)
2. Designated healthcare agent under a valid HCPOA
3. Spouse (unless legally separated)
4. An adult child (or majority of adult children reasonably available)
5. A parent
6. An adult sibling (or majority of adult siblings reasonably available)
7. A grandparent (or majority of grandparents reasonably available)
8. Any other adult relative by blood or marriage with a close personal relationship (requires a notarized acknowledgment form)

For most families, the parent falls at position 5 on the list. If there is no spouse, no HCPOA, no guardian, and no adult child with priority, the parent is the default surrogate — which means that in many practical scenarios, the Act already protects the family's ability to make medical decisions without any additional paperwork.

When the Consent Act Is Not Enough

The surrogate hierarchy works for acute medical decisions: emergency treatment, surgery consent, medication changes. It does not cover long-term residential placement decisions, and some institutions (particularly facilities that serve people with complex behavioral needs) may require a court-appointed guardian before agreeing to admit a patient.

The Act also has a gap when multiple family members disagree. If two adult siblings hold different views on a treatment decision, the Act's "majority" mechanism can create conflict that a HCPOA would have prevented by naming a single decision-maker.

The Guardianship Question

Families sometimes pursue full probate court guardianship primarily to control medical decisions. In most cases, a combination of the Healthcare POA (if the young adult has capacity to sign it) and the Adult Health Care Consent Act (which covers situations where they cannot) handles medical decision-making without the cost, court oversight, and rights restrictions that guardianship imposes.

Guardianship may be necessary for medical decisions when the young adult cannot make or communicate responsible decisions about their care and less restrictive tools are insufficient. An active refusal of needed care is one example; neither a POA nor the Consent Act gives a parent the authority to override the adult's stated wishes.

The South Carolina Adult Disability Benefits Guide walks through the full decision-making spectrum, helping families determine which combination of tools — SDM, POA, Consent Act, or guardianship — fits their specific situation.

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