IDEA Disability Category

Specific learning disability

A processing disorder affecting skills like reading, writing, or math. Includes dyslexia.

An educational classification, not a medical diagnosis. A medical or clinical diagnosis does not automatically qualify a child for an IEP, and a child can qualify under IDEA without one. Eligibility is an educational team decision based on evaluation data. These are educational classifications, not medical diagnoses.

What it means

Specific learning disability, or SLD, means a disorder in one or more of the basic psychological processes involved in understanding or using language, spoken or written. It may show up as difficulty listening, thinking, speaking, reading, writing, spelling, or doing math. IDEA notes it includes conditions such as perceptual disabilities, brain injury, minimal brain dysfunction, dyslexia, and developmental aphasia. It does not include learning problems that are primarily the result of vision, hearing, or motor disabilities, intellectual disability, emotional disturbance, or environmental, cultural, or economic disadvantage.

What it can include

  • Dyslexia (reading)
  • Dysgraphia (writing) and dyscalculia (math)
  • Difficulty with listening, reasoning, or spelling

How it affects school

Supports often include specialized reading or math instruction, accommodations like extended time, assistive technology, and explicit, structured teaching.

How IEP eligibility works

To qualify for an IEP under this category, an evaluation team generally must find three things to be true:

  • A qualifying disability. The child is evaluated and found to have one or more of the 13 disability categories defined under IDEA.
  • An adverse effect on learning. The disability must adversely affect the child educational performance. A label by itself is not enough.
  • A need for specially designed instruction. Because of the disability, the child needs special education and related services to access their education.

Common questions

Is dyslexia covered under IDEA?

Yes. Dyslexia is specifically named as an example of a specific learning disability. A child with dyslexia can qualify when it adversely affects learning and they need specially designed instruction.

How is an SLD identified?

Schools use a full evaluation, which may include a response-to-intervention process and assessment of how the child learns, rather than a single test.

Have a question about your own child? Ada can explain how this category and IDEA apply to your situation in plain language. Ask Ada, or see all 13 categories. Want to know exactly how your state handles this — eligibility steps, timelines, and where to file? See your state’s process →