What disabilities qualify for an IEP under federal law

Last updated 2026-07-09

What law decides who gets an IEP?

The Individuals with Disabilities Education Act, known as IDEA, is the federal law that controls IEP eligibility. Congress first passed it in 1975 as the Education for All Handicapped Children Act, and the current version is codified at 20 U.S.C. § 1400 et seq. ^[1] Every public school that takes federal education money has to follow it. That's essentially every public school in the country.

IDEA sets a two-part test. First, the child must have a disability that falls into one of the law's 13 named categories. Second, that disability must adversely affect the child's educational performance so that they need specially designed instruction. Both parts have to be true. A child can have a diagnosed condition and still not qualify if the school decides the condition isn't affecting their education enough to require an IEP. That second part is where most parent-school disagreements start.

If a child doesn't clear the IDEA threshold but still has a documented disability that limits a major life activity, they may qualify for a 504 plan instead. Section 504 of the Rehabilitation Act uses a broader definition of disability and doesn't require the same educational impact standard. The difference matters a lot in practice, so read up on IEP vs 504 before your next school meeting.

For a fuller picture of what an IEP actually is before getting into eligibility, see our plain-language guide on what does IEP stand for.

What are the 13 IDEA disability categories that qualify for an IEP?

IDEA's implementing regulations at 34 C.F.R. § 300.8 list exactly 13 disability categories. ^[2] Here they are with brief explanations:

IDEA Category	What it covers
Specific Learning Disability (SLD)	Disorders in basic psychological processes affecting reading, writing, math, or language. Dyslexia, dyscalculia, and dysgraphia fall here.
Speech or Language Impairment	Stuttering, articulation disorders, language impairments, or voice disorders that affect educational performance.
Other Health Impairment (OHI)	Limited strength, energy, or alertness due to chronic health conditions including ADHD, asthma, epilepsy, diabetes, sickle cell, and others.
Autism Spectrum Disorder	A developmental disability affecting verbal and nonverbal communication and social interaction, generally evident before age 3.
Emotional Disturbance	Long-term characteristics like inability to learn, relationship difficulties, inappropriate behavior, pervasive unhappiness, or physical symptoms tied to school.
Intellectual Disability	Significantly below-average intellectual functioning with deficits in adaptive behavior, showing up during the developmental period.
Multiple Disabilities	Two or more disabilities occurring together that cause severe educational needs (but not deaf-blindness, which has its own category).
Hearing Impairment	Impairment in hearing, whether permanent or fluctuating, that affects educational performance but is not covered under deafness.
Deafness	A hearing impairment so severe the child cannot process linguistic information with or without amplification.
Visual Impairment Including Blindness	Impairment in vision that, even with correction, adversely affects educational performance.
Deaf-Blindness	Simultaneous hearing and visual impairments causing severe communication and developmental needs.
Orthopedic Impairment	Severe orthopedic impairment affecting educational performance, including those from congenital conditions, disease, or injury.
Traumatic Brain Injury (TBI)	Acquired injury to the brain from external physical force or internal occurrence, resulting in functional disability or psychosocial impairment.

Children ages 3 through 9 (in some states, through 5) may also be served under a broader "developmental delay" category if they have delays in physical, cognitive, communication, social-emotional, or adaptive development. ^[2] States get some discretion on whether to use this category and for which age range.

SLD is by far the most common category. The National Center for Education Statistics reported that in the 2021-22 school year, specific learning disabilities accounted for about 33 percent of all students served under IDEA, and speech or language impairments accounted for about 19 percent. ^[3]

Does dyslexia qualify a child for an IEP?

Yes. Dyslexia qualifies under the Specific Learning Disability category. IDEA's statute at 20 U.S.C. § 1401(30) explicitly names dyslexia as a condition that may be a specific learning disability. ^[1] The U.S. Department of Education issued a Dear Colleague Letter in 2015 clarifying that states and school districts may not refuse to use the term "dyslexia" in IEP documents when it's accurate, and that children with dyslexia who need specially designed instruction are eligible for IEPs. ^[4]

The catch, as always, is the two-part test. A child needs both the SLD determination and a finding that the disability adversely affects educational performance. For a child who struggles to read grade-level text, that second part is usually easy to establish. For a very bright child who compensates well, schools sometimes argue the disability isn't affecting performance enough. That's a contested area, and parents can and should disagree in writing when they believe the school is wrong.

Many parents find the IEP process confusing from the start. Our article on IEP meaning: what an IEP actually is in schools walks through the basics if you're new to all of this.

Does ADHD qualify a child for an IEP?

ADHD doesn't have its own IDEA category, but children with ADHD frequently qualify under Other Health Impairment (OHI). OHI covers conditions that result in "limited alertness with respect to the educational environment" due to chronic or acute health problems. ^[2] The U.S. Department of Education confirmed in a 2016 Dear Colleague Letter that ADHD is specifically included under OHI. ^[5]

Some children with ADHD also have co-occurring SLDs, and in that case they may qualify under SLD or under both categories. Others whose ADHD mainly causes behavioral or emotional problems may qualify under Emotional Disturbance instead.

If ADHD affects a child's school functioning but the impact isn't severe enough to meet the OHI standard for an IEP, a 504 plan school accommodation plan is often the right fit instead. The bar for 504 eligibility is lower than IDEA's.

In the 2021-22 school year, other health impairment was the third-largest IDEA category, covering about 15 percent of students with IEPs. ^[3]

Does autism qualify for an IEP?

Autism Spectrum Disorder (ASD) is one of the 13 named IDEA categories, so yes, a child with an autism diagnosis can qualify. The disability must still adversely affect educational performance, which is almost always true for children with ASD in a school setting.

IDEA defines autism as "a developmental disability significantly affecting verbal and nonverbal communication and social interaction, generally evident before age 3, that adversely affects a child's educational performance." ^[2] Children whose educational performance is affected mainly by an emotional or behavioral disturbance rather than the autism characteristics themselves may be classified differently, but that situation is unusual.

ASD accounted for about 12 percent of all IDEA-served students in 2021-22. ^[3] That share has grown steadily over the past two decades as identification has improved.

What about anxiety, depression, or other mental health conditions?

Mental health conditions can qualify under the Emotional Disturbance (ED) category, but this one has a high bar. IDEA defines ED as a condition that has persisted over a long period of time, occurs to a marked degree, and adversely affects educational performance. ^[2] It covers things like an inability to learn that can't be explained by intellectual, sensory, or health factors, severe anxiety, pervasive unhappiness or depression, and a tendency to develop physical symptoms or fears in response to school.

The law specifically excludes "social maladjustment" from ED eligibility unless the child also has an emotional disturbance as defined above. Schools sometimes misuse that exclusion to deny IEPs to children with genuine emotional conditions, so it's worth knowing.

Anxiety or depression that causes significant school impairment can qualify. But if the condition is managed well enough that the child is keeping up academically, schools may argue that specially designed instruction isn't needed, even when the child is clearly struggling emotionally. Parents who disagree can request an independent educational evaluation (IEE) at the school's expense if they disagree with the school's evaluation. That right is protected under 34 C.F.R. § 300.502. ^[2]

How does a child actually get evaluated for IEP eligibility?

The process starts with a referral for a special education evaluation. Parents can request one in writing at any time. Schools can also refer a child. Once a school receives a written request, IDEA gives it 60 calendar days (or the state's established timeline if shorter) to complete the evaluation, unless the parent agrees in writing to an extension. ^[1]

The evaluation has to cover all areas of suspected disability. It can't be just one test. A multidisciplinary team typically uses cognitive assessments, academic achievement tests, observations, teacher input, and parent input. For reading disabilities specifically, a good evaluation should include measures of phonological awareness, phonological memory, rapid naming, and decoding, more than reading comprehension or IQ.

After the evaluation, the team holds an eligibility meeting. The team includes the parents, at least one general education teacher, at least one special education teacher, a school representative who knows the curriculum and can commit resources, and someone qualified to interpret the evaluation results. The team decides together whether the child meets IDEA's two-part eligibility standard.

If the school says no evaluation is warranted, they have to give you that denial in writing with their reasons. You can then dispute it through the dispute resolution process.

For a detailed look at the full IEP process once eligibility is established, our guide on IEP in school: what it is and how to get one covers it step by step.

What if the school says my child doesn't qualify but I disagree?

You have real options here, and they're legally protected.

First, you can request an Independent Educational Evaluation (IEE). Under 34 C.F.R. § 300.502, if you disagree with the school's evaluation, you can request an IEE conducted by an outside evaluator. The school must either pay for it or file for a due process hearing to defend its own evaluation. ^[2] A lot of schools pay for the IEE rather than go to a hearing, especially when the parent's request is reasonable.

Second, you can request mediation. IDEA requires every state to offer free mediation through an impartial mediator. Mediation is voluntary for both sides, but many disputes get resolved there.

Third, you can file a state complaint. Every state education agency has a complaint process where you can allege that a school violated IDEA. The state must investigate and issue a written decision within 60 calendar days.

Fourth, you can request a due process hearing. This is more formal, like a legal proceeding, and you can have an attorney. It's the most adversarial option and should probably be a last resort unless other avenues have failed.

Parents heading into an eligibility dispute for the first time often benefit from a parent advocacy kit that spells out their procedural rights before they walk into a meeting. If you want a structured way to prepare, ReadFlare's parent advocacy kit has IDEA rights summaries and documentation templates built for exactly this situation.

One practical thing: always put requests and disagreements in writing, and keep copies. A verbal request for an evaluation starts no clock. A written one does.

Can a child qualify for an IEP without a formal medical diagnosis?

Yes. IDEA eligibility is a school-based determination, not a medical one. A child doesn't need a doctor's diagnosis of dyslexia, ADHD, or anything else to qualify for an IEP. The school's evaluation team makes the eligibility call based on their own full assessment.

That said, a medical or clinical diagnosis can be strong supporting evidence and can sometimes speed the process. A school can't ignore a credible outside evaluation. Under IDEA's regulations at 34 C.F.R. § 300.305, the IEP team must consider evaluations and information provided by the parents. ^[2]

Having a diagnosis doesn't automatically mean a child qualifies, though. The school still has to determine that the disability adversely affects educational performance and that specially designed instruction is needed. This surprises a lot of parents who walk in with a psychiatrist's ADHD diagnosis expecting automatic eligibility.

The absence of a diagnosis is also sometimes used as an excuse to delay an evaluation, which isn't permitted. If a school is stalling your referral because they want you to get a private diagnosis first, that's a procedural violation of IDEA's child find obligations.

What is the 'child find' obligation and why does it matter?

IDEA requires every state and school district to actively identify, locate, and evaluate all children with disabilities who may need special education, even if the child has never failed a grade or been referred by a teacher. This obligation is called "child find" and it's spelled out at 20 U.S.C. § 1412(a)(3). ^[1]

Child find means schools can't wait for a child to completely fall apart before evaluating them. It applies to children in private schools and homeschool settings too, though the services available in those situations differ.

In practice, child find is often underenforced. A child who is struggling but compensating, who behaves well in class, or whose teachers don't raise concerns can fall through the cracks for years. Parents don't have to wait for a teacher referral. If you suspect your child has a disability affecting their education, you can request an evaluation yourself in writing and the school's response clock starts immediately.

The U.S. Department of Education's Office of Special Education Programs (OSEP) oversees IDEA compliance and publishes annual data reports on how states are serving children. ^[6]

How is SLD eligibility specifically determined, and what is the discrepancy model vs. RTI?

Specific Learning Disability eligibility has its own determination rules under 34 C.F.R. § 300.307-311. ^[2] Schools historically used an IQ-achievement discrepancy model, looking for a significant gap between a child's cognitive ability and their academic achievement. Research criticized this approach because it effectively required children to fail for years before qualifying.

IDEA's 2004 reauthorization changed the rules. Schools may no longer be required to use the discrepancy model. Instead, they can use a process that examines whether the child responds to scientific, research-based intervention. This is commonly called Response to Intervention (RTI) or Multi-Tiered System of Supports (MTSS). ^[8]

The practical problem with RTI as a gatekeeping tool is that it can delay evaluation badly. A child might cycle through Tier 1 and Tier 2 interventions for a year or more before anyone considers a formal evaluation. IDEA is clear that RTI cannot be used to delay or deny an initial evaluation. Parents can request a formal evaluation at any point, even while RTI is happening. Schools don't always communicate that clearly.

A 2021 analysis in the Journal of Learning Disabilities found that RTI implementation varied widely across states, with some using it well as an early intervention tool and others using it as a barrier to evaluation. ^[7]

For reading specifically, strong research from the National Reading Panel and later studies shows that explicit, systematic phonics instruction improves outcomes for children with dyslexia and other reading disabilities. ^[9] That research base is why schools are supposed to be using structured literacy in their interventions. For more on the reading science behind this, our guide to IEP in school: what it is and how to get one connects the intervention research to IEP goals.

How many children currently have IEPs, and which categories are most common?

In the 2021-22 school year, about 7.3 million children ages 3 through 21 were served under IDEA, roughly 15 percent of all public school students. ^[3] That number has grown from about 6.6 million in 2013-14.

The breakdown by category shows clearly where the bulk of eligibility falls. Specific learning disabilities and speech or language impairments together cover more than half of all IDEA-served students. Here's how the top categories looked in 2021-22:

Category	Share of IDEA students
Specific Learning Disability	~33%
Speech or Language Impairment	~19%
Other Health Impairment	~15%
Autism Spectrum Disorder	~12%
Developmental Delay	~7%
Intellectual Disability	~6%
Emotional Disturbance	~5%
All other categories combined	~3%

Source: National Center for Education Statistics, Digest of Education Statistics 2023 ^[3]

These figures come from NCES's Digest of Education Statistics, which draws from states' annual IDEA data submissions. The share of students with autism has risen a lot over the past decade, from roughly 8 percent to 12 percent, driven largely by better identification.

What happens after a child is found eligible? What goes into the IEP?

Once a child is found eligible, the team has to develop an IEP within 30 calendar days. ^[1] The IEP is a written plan that must include, among other things: a statement of the child's present levels of academic and functional performance, measurable annual goals, how progress will be measured and reported, a description of specially designed instruction and related services, and information about participation in the general education setting.

Related services that can go into an IEP are broad. They include speech-language therapy, occupational therapy, physical therapy, counseling, school psychology services, transportation, assistive technology, and more.

The IEP must be reviewed at least once a year. A full reevaluation to determine continued eligibility must happen at least every three years, though parents or schools can request one sooner.

Parents are equal members of the IEP team. You don't have to sign an IEP you disagree with, and your signature on the IEP itself signals agreement to the initial provision of special education services, not blanket agreement with everything in the document. Read the signature block carefully.

If you want to understand the document you're being asked to sign more deeply, our article on what does IEP mean breaks down the components in plain language. For parents who use online IEP platforms, iep online explains how those systems work and what access parents should expect.

ReadFlare's free reading toolkit includes goal-setting checklists and a guide to reading-related IEP goals based on structured literacy research, which you can use to check whether the goals in your child's IEP are specific enough to actually move the needle.

Frequently asked questions

What disabilities qualify for an IEP under IDEA?

IDEA recognizes 13 categories: specific learning disability, speech or language impairment, other health impairment, autism spectrum disorder, emotional disturbance, intellectual disability, multiple disabilities, hearing impairment, deafness, visual impairment including blindness, deaf-blindness, orthopedic impairment, and traumatic brain injury. Younger children may also qualify under developmental delay. Having a qualifying condition plus an adverse educational impact is required.

Does a child need a medical diagnosis to get an IEP?

No. IEP eligibility is determined by the school's evaluation team, not by a doctor. A clinical diagnosis can support the process and may speed things up, but it isn't required. Schools must conduct their own full evaluation. A school that refuses to evaluate until a child has a private diagnosis is likely violating IDEA's child find requirements.

Does ADHD qualify for an IEP?

ADHD can qualify under the Other Health Impairment (OHI) category if it results in limited alertness in the educational environment and the child needs specially designed instruction. The U.S. Department of Education confirmed in a 2016 Dear Colleague Letter that ADHD is included under OHI. Children whose ADHD doesn't meet the IEP threshold may still qualify for a 504 plan.

Does dyslexia qualify for an IEP?

Yes. Dyslexia is explicitly named in IDEA's statutory definition of specific learning disability at 20 U.S.C. § 1401(30). A 2015 U.S. Department of Education Dear Colleague Letter clarified that schools cannot refuse to use the word 'dyslexia' in IEP documents. The child must still meet the two-part eligibility test: an SLD determination plus adverse educational impact.

What is the two-part test for IEP eligibility?

First, the child must have a disability that fits one of IDEA's 13 named categories. Second, that disability must adversely affect educational performance to the degree that the child needs specially designed instruction. Both conditions must be true. A child can have a diagnosis and still not qualify if the school finds the disability isn't affecting their education enough to require specialized instruction.

How do I request an IEP evaluation for my child?

Put the request in writing, addressed to the school principal or special education director. State that you are requesting a full and individual evaluation under IDEA to determine eligibility for special education. Once received, the school has 60 calendar days (or the state's timeline) to complete the evaluation. A verbal request starts no clock. Keep a copy of everything you send.

What can I do if the school says my child doesn't qualify for an IEP?

You have four main options under IDEA: request an Independent Educational Evaluation (IEE) at the school's expense if you disagree with their assessment; request free mediation; file a complaint with your state education agency; or request a due process hearing. Start with the IEE request in most cases. The school must either pay for an outside evaluation or go to a hearing to defend its own evaluation.

Can anxiety or depression qualify a child for an IEP?

They can, under the Emotional Disturbance (ED) category, but the standard is high. The condition must have persisted over a long time, occur to a marked degree, and adversely affect educational performance. Schools sometimes deny ED eligibility by citing the 'social maladjustment' exclusion incorrectly. If your child's mental health condition is significantly affecting school, request a full evaluation and document everything.

What is the developmental delay category in IDEA?

For children ages 3 through 9 (some states limit it to ages 3 through 5), states may serve children under a developmental delay category instead of requiring a specific disability label. It covers delays in physical, cognitive, communication, social-emotional, or adaptive development. States choose whether to use this category, so availability varies. Check your state education agency's guidelines.

Can a child have both an IEP and a 504 plan?

No. A child with an IEP already receives services under IDEA, which provides stronger protections and more services than a 504 plan. An IEP supersedes a 504. If a child loses IEP eligibility, a 504 plan can then be put in place to maintain accommodations. The two plans are separate frameworks and a child uses only one at a time.

Does autism automatically qualify a child for an IEP?

Autism is one of IDEA's 13 named categories, so a child with ASD can qualify, but it's not automatic. The disability still must adversely affect educational performance and require specially designed instruction. In practice, most children with ASD who are in public school will meet that second condition, but the school's evaluation still needs to document it.

How long does the IEP evaluation process take?

IDEA requires the evaluation to be completed within 60 calendar days of receiving your written consent to evaluate, unless your state has set a shorter timeline. After eligibility is confirmed, the IEP must be developed within 30 calendar days. Total time from your written request to a signed IEP can run three to four months in a typical case, sometimes longer if disputes arise.

What is the difference between an IEP and a 504 plan for a child with a learning disability?

An IEP provides specially designed instruction, meaning the actual teaching approach is modified for the child, along with related services. A 504 plan provides accommodations and modifications but typically doesn't change how instruction is delivered. IEPs are governed by IDEA with stronger procedural rights. 504 plans fall under the Rehabilitation Act and have a broader disability definition but fewer built-in enforcement tools.

Can a child in a private school get an IEP?

Children in private schools have limited rights under IDEA compared to public school students. The school district where the private school is located has a child find obligation and must evaluate privately placed children, but is only required to spend a proportionate share of federal funds on them. They are not entitled to the full IEP services a public school child receives. Consult your state education agency for specifics.

Sources

1. U.S. Congress, Individuals with Disabilities Education Act, 20 U.S.C. § 1400 et seq.: IDEA's two-part eligibility standard, 60-day evaluation timeline, child find obligation at § 1412(a)(3), and explicit naming of dyslexia at § 1401(30)
2. U.S. Department of Education, IDEA Regulations, 34 C.F.R. Part 300: 13 IDEA disability categories at § 300.8, SLD determination rules at §§ 300.307-311, IEE rights at § 300.502, and parental consideration of outside evaluations at § 300.305
3. National Center for Education Statistics, Digest of Education Statistics 2023, Table 204.30: 7.3 million children served under IDEA in 2021-22 (15% of public school students); SLD ~33%, speech/language ~19%, OHI ~15%, ASD ~12% of IDEA students
4. U.S. Department of Education, Office of Special Education and Rehabilitative Services, Dear Colleague Letter on Dyslexia (October 2015): Schools may not refuse to use the term 'dyslexia' in IEP documents and children with dyslexia who need specially designed instruction are eligible for IEPs
5. U.S. Department of Education, Office of Special Education and Rehabilitative Services, Dear Colleague Letter on ADHD (July 2016): ADHD is specifically included under the Other Health Impairment category in IDEA
6. U.S. Department of Education, Office of Special Education Programs (OSEP), Annual Report to Congress on IDEA: OSEP oversees IDEA compliance and publishes annual data on students served under IDEA
7. Journal of Learning Disabilities, Fuchs et al., 'The Prevention of Reading Failure: A Review of Response to Intervention', Vol. 54(1), 2021: RTI implementation varied widely across states, with some using it as a barrier to evaluation rather than an early intervention tool
8. U.S. Department of Education, Building the Legacy: IDEA 2004, Evaluation and Reevaluation: IDEA 2004 reauthorization permitted schools to use RTI rather than requiring the IQ-achievement discrepancy model for SLD determination
9. National Institute of Child Health and Human Development, Report of the National Reading Panel (2000): Explicit, systematic phonics instruction improves outcomes for children with dyslexia and other reading disabilities
10. U.S. Department of Education, Office for Civil Rights, Section 504 of the Rehabilitation Act of 1973: Section 504 uses a broader disability definition than IDEA and does not require the same educational impact standard for eligibility