Documents You Need for the SSI Age-18 Review in South Carolina

Within the year after your child turns 18, the Social Security Administration initiates the age-18 redetermination — a complete re-evaluation of whether they qualify for SSI under the adult disability standard. This is not a paperwork update. The childhood standard (marked and severe functional limitations) is replaced by the adult standard: can the young adult perform any Substantial Gainful Activity? The review is conducted by South Carolina's Disability Determination Services (DDS), and the strength of the documentation you submit directly affects the outcome.

What DDS Needs to See

The SSA will send a written notice requesting detailed information. Here is what to have ready:

Medical Records

DDS is evaluating whether the young adult has a medically determinable impairment that has lasted or is expected to last at least 12 months. That determination rests on clinical documentation:

• Treating physician records. Progress notes, treatment plans, and clinical summaries from the young adult's primary care provider, psychiatrist, neurologist, or other specialists. Records should show the diagnosis, ongoing treatment, and the provider's assessment of functional limitations.
• Psychological or neuropsychological evaluations. If the young adult has an intellectual disability, autism spectrum disorder, or a psychological condition, a current evaluation with standardized testing (IQ, adaptive behavior scales) can provide important evidence. Use the most recent evaluation available; older evaluations can still document the history and should be supplemented with current clinical information.
• Therapy records. Occupational therapy, speech-language therapy, physical therapy, and behavioral therapy records that document the severity and persistence of functional deficits.
• Medication history. A list of current medications, dosages, prescribing physician, and documented side effects.

School and IEP Records

School records are valuable supplementary evidence, but they alone are not enough. DDS needs clinical records to establish a medical diagnosis. That said, IEP documents strengthen the case:

• Most recent IEP and evaluation reports. The IEP's present levels of performance section documents functional limitations in academic, social, and daily living domains.
• Transition assessments. These show the student's abilities and limitations in employment, independent living, and community participation.
• Triennial reevaluation reports. Particularly useful if they include updated psychoeducational testing.
• Behavior Intervention Plans (BIPs) and Functional Behavior Assessments (FBAs). These document behavioral challenges that limit the young adult's ability to function in a work setting.

Employment and Daily Living Information

The adult standard is about work capacity, so DDS needs information about what the young adult can and cannot do:

• Function Report (Form SSA-3373). This form asks about daily activities, social interactions, physical abilities, and concentration. Be specific and concrete — "cannot prepare a meal without supervision due to inability to follow multi-step instructions" is far more useful than "has difficulty in the kitchen."
• Work history. If the young adult has held any jobs (including sheltered employment or work-based learning through SCVRD), document the job duties, accommodations provided, and reasons for any termination.
• Third-party statements. Teachers, job coaches, therapists, and caregivers can submit written statements describing the young adult's limitations in their own observations.

What Happens If DDS Needs More Evidence

If the medical evidence is insufficient to make a determination, SSA may schedule a consultative examination with an independent medical professional. This evaluation is conducted at no cost to the family. A consultative examination is only one part of the record, so submit comprehensive records from treating providers along with any requested examination evidence.

The 10-Day Window If Denied

If DDS issues an unfavorable determination, the young adult receives a written cessation notice. SSI payments continue for two additional months, then stop. To keep benefits flowing during the appeal, the family must request reconsideration within 10 calendar days of receiving the denial letter. After 10 days, they can still appeal within 60 calendar days, but SSI cash benefits will stop during the review. Medicaid coverage does not automatically terminate; the family should immediately apply through SCDHHS to transition the young adult to another Medicaid category, such as TEFRA or waiver-linked Medicaid, to prevent a gap.

This 10-day window is the single most important deadline in the entire age-18 transition. Missing it does not prevent an appeal — it just means benefits are interrupted, sometimes for months, while the case works through the system.

The South Carolina Adult Disability Benefits Guide includes a document-collection checklist organized by evidence type, with the specific forms, deadlines, and preparation steps families need for the age-18 redetermination.

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