1. A. Intellectual Developmental Disorder

   1. (1) Criterion A requires deficits in mental abilities, referring to intellectual functions that involve reasoning, problem solving, planning, abstract thinking, judgment, learning from instruction and experience, and practical understanding.

      To meet this criterion, individuals must have a valid IQ score of approximately 70 or below, including a margin of measurement error of +/- 5, establishing a range of eligibility from 65-75. Instruments must be normed for the individual’s sociocultural background and native language. When multiple tests have been conducted for an individual, a clinical assessment of the validity of the results and other related factors (i.e., statistically significant splits between scores) of each singular test will occur as to provide the appropriate clinical judgment of an individual’s score.

   2. (2) Criterion B requires impairment in everyday adaptive functioning, in comparison to an individual’s age, gender, and socioculturally matched peers.

      To meet this criterion, individuals must have one domain in adaptive functioning—conceptual, social, or practical—sufficiently impaired as to necessitate ongoing support in order to have the individual perform adequately at school, at work, at home, or in the community. For the purposes of this Criterion B, the conceptual (academic) domain involves competence in memory, language, reading, writing, math reasoning, acquisition of practical knowledge, problem solving, and judgment in novel situations, among others. The social domain involves awareness of others’ thoughts, feelings, and experiences; empathy; interpersonal communication skills; friendship abilities; and social judgment, among others. The practical domain involves learning and self-management across life settings, including personal care, job responsibilities; money management, recreation, self-management of behavior, and school and work task organization, among others.

      Adaptive functioning is evaluated by using both clinical evaluation and individualized, culturally appropriate, psychometrically sound measures. Standardized measures are used with knowledgeable informants (e.g., parent or other family members; teacher; counselor; care provider) and the individual to the extent possible. Additional sources of information include educational, developmental, medical and mental health evaluations. In situations where standardized testing is difficult or impossible (e.g., sensory impairment, severe problem behavior), the individual may be diagnosed with unspecified intellectual development disorder. Intellectual capacity, education, motivation, socialization, personality features, vocational opportunity, cultural experience, and coexisting other medical conditions or mental disorders influence adaptive functioning.

   3. (3) Criterion C requires onset to occur during the developmental period, referring to recognition of intellectual and adaptive deficits being present in childhood or adolescence.

      To meet this criterion, a comprehensive evaluation is required. A comprehensive evaluation includes an assessment of intellectual capacity and adaptive functioning; identification of genetic and non-genetic etiologies; evaluation for associated medical conditions (e.g., cerebral palsy, seizure disorder); and evaluation for co-occurring mental, emotional, and behavioral disorders. Components of the evaluation may include basic pre- and perinatal medical history, three-generational family pedigree, physical examination, genetic evaluation, and metabolic screening and neuroimaging assessment.

   Pursuant to the DSM-5, or most current edition, a diagnosis of Intellectual Developmental Disorder requires consideration of both clinical assessment and standardized testing of intellectual and adaptive functions. Individual cognitive profiles based on neuropsychological testing as well as cross-battery intellectual assessment using multiple IQ or cognitive tests to create a profile will also be considered when making a determination of eligibility. Specifically, an individual must meet the following three (3) criteria in order to receive a diagnosis:

2. B. Related Disability

   1. (1) Diagnosis of Related Disability requires all four (4) of the following conditions:

      1. (a) It is attributable to cerebral palsy, epilepsy, or any other condition other than mental illness found to be closely related (i.e., empirical medical evidence) to Intellectual Disability because this condition results in impairment of general intellectual functioning or adaptive behavior similar to that of persons with Intellectual Disability and requires treatment or services similar to those required for these persons; and
      2. (b) It is likely to continue indefinitely; and,
      3. (c) It results in substantial functional limitations in three (3) or more of the following areas of major life activity: Self-care, Understanding and Use of Language, Learning, Mobility, Self-direction, Capacity for Independent Living; and
      4. (d) The onset is before age 22 years.
   2. (2) Only scores derived from nationally normed standardized tests administered by qualified examiners shall be used in eligibility determinations. Substantial functional limitations shall be defined as the results from administration of a standardized, norm-referenced test yielding a score of two standard deviations or more below the mean.

3. C. High-Risk Infant/At Risk Child

   1. (1) Diagnosis of High Risk Infant/At Risk Child requires that a child younger than 72 months of age meet one of the following:

      1. (a) Exhibits significant documented delays in three or more areas of development; or
      2. (b) Have a diagnosis, as recognized by the Individuals with Disabilities Education Act (IDEA) Part C program (BabyNet) Established Risk Condition List, confirmed by a medical professional and exhibit significant documented delays in two areas of development.

4. D. Autism Spectrum Disorder

   1. (1) Diagnosis of ASD based on the (DSM-5) requires that the results from a battery of ASD specific assessments confirm:

      1. (a) Persistent deficits in social communication and social interaction across multiple contexts, as manifested by the following three (3) criteria, currently or by history:

         1. (i) Deficits in social-emotional reciprocity, ranging, for example, from abnormal social approach and failure of normal back-and-forth conversation; to reduced sharing of interests, emotions, or affect; to failure to initiate or respond to social interactions.

         2. (ii) Deficits in nonverbal communicative behaviors used for social interaction, ranging for example, from poorly integrated verbal and nonverbal communication; to abnormalities in eye contact and body language or deficits in understanding and use of gestures; to a total lack of facial expressions and nonverbal communication.

            (iii) Deficits in developing, maintaining, and understanding relationships, ranging, for example, from difficulties adjusting behavior to suit various social contexts; to difficulties in sharing imaginative play or in making friends; to absence of interest in peers.

   2. (2) Restricted, repetitive patterns of behavior, interests, or activities, as manifested by at least two of the following, currently or by history:

      1. (a) Stereo-typed or repetitive motor movements, use of objects, or speech (e.g., simple motor stereotypes, lining up toys or flipping objects, echolalia, idiosyncratic phrases).
      2. (b) Insistence on sameness, inflexible adherence to routines, or ritualized patterns of verbal or nonverbal behavior (e.g., extreme distress at small changes, difficulties with transitions, rigid thinking patterns, greeting rituals, need to take same route or eat same food every day).
      3. (c) Highly restricted, fixated interests that are abnormal in intensity or focus (e.g., strong attachment to or preoccupation with unusual objects, excessively circumscribed or perseverative interests).
      4. (d) Hyper- or hypo-reactivity to sensory input or unusual interest in sensory aspects of the environment (e.g., apparent indifference to pain/temperature, adverse response to specific sounds or textures, excessive smelling or touching of objects, visual fascination with lights or movement).
   3. (3) Symptoms are present in the early developmental period (but may not become fully manifest until social demands exceed limited capacities, or may be masked by learned strategies in later life).
   4. (4) Symptoms cause clinically significant impairment in social, occupational, or other important areas of current functioning.
   5. (5) These disturbances are not better explained by Intellectual Disability (Intellectual Developmental Disorder) or global developmental delay. Intellectual Disability and Autism Spectrum Disorder frequently co-occur; to make comorbid diagnoses of Autism Spectrum Disorder and Intellectual Disability, social communication should be below that expected for general developmental level.

5. E. Head and Spinal Cord Injury and Similar Disability

   1. (1) Diagnosis of Head or Spinal Cord Injury or Similar Disability requires:

      1. (a) Medical documentation and functional/adaptive assessments to substantiate that Traumatic Brain Injury, Spinal Cord Injury or Similar Disability occurred and produced ongoing substantial functional limitations. Including documentation of pre-existing/concurrent conditions, which impact functioning.

      2. (b) The person has a severe chronic limitation that:

         1. (i) Is attributed to a physical impairment, including head injury, spinal cord injury or both, or a similar disability, regardless of the age of onset, but not associated with the process of a progressive degenerative illness or disease, dementia, or a neurological disorder related to aging;

         2. (ii) Is likely to continue indefinitely without intervention;

            (iii) Results in substantial functional limitation in at least two (2) of these life activities: Cognitive; Self-care; Communication; Learning; Mobility; Self-direction; Capacity for independent living; Economic self-sufficiency; and,

         3. (iv) Reflects the person’s need for a combination and sequence of special interdisciplinary or generic care or treatment or other services, which are of lifelong or extended duration.

HISTORY: Added by SCSR 46-5 Doc. No. 5040, eff May 27, 2022.