# Neurological Disorders Aggregated by Superinsight from public-domain sources, as of 2026-08-20. Domain: ssa. --- ## Listing 11.02 — Epilepsy {#11.02} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.02* Official source: 11.02 Epilepsy, documented by a detailed description of a typical seizure and characterized by A, B, C, or D: A. Generalized tonic-clonic seizures (see 11.00H1a), occurring at least once a month for at least 3 consecutive months (see 11.00H4) despite adherence to prescribed treatment (see 11.00C); or B. Dyscognitive seizures (see 11.00H1b), occurring at least once a week for at least 3 consecutive months (see 11.00H4) despite adherence to prescribed treatment (see 11.00C); or C. Generalized tonic-clonic seizures (see 11.00H1a), occurring at least once every 2 months for at least 4 consecutive months (see 11.00H4) despite adherence to prescribed treatment (see 11.00C); and a marked limitation in one of the following: 1. Physical functioning (see 11.00G3a); or 2. Understanding, remembering, or applying information (see 11.00G3b(i)); or 3. Interacting with others (see 11.00G3b(ii)); or 4. Concentrating, persisting, or maintaining pace (see 11.00G3b(iii)); or 5. Adapting or managing oneself (see 11.00G3b(iv)); or D. Dyscognitive seizures (see 11.00H1b), occurring at least once every 2 weeks for at least 3 consecutive months (see 11.00H4) despite adherence to prescribed treatment (see 11.00C); and a marked limitation in one of the following: 1. Physical functioning (see 11.00G3a); or 2. Understanding, remembering, or applying information (see 11.00G3b(i)); or 3. Interacting with others (see 11.00G3b(ii)); or 4. Concentrating, persisting, or maintaining pace (see 11.00G3b(iii)); or 5. Adapting or managing oneself (see 11.00G3b(iv)). --- ## Listing 11.03 — [Reserved] {#11.03} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.03* Official source: 11.03 [Reserved] --- ## Listing 11.04 — Vascular insult to the brain, characterized by A, B, or C: {#11.04} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.04* Official source: 11.04 Vascular insult to the brain, characterized by A, B, or C: A. Sensory or motor aphasia resulting in ineffective speech or communication (see 11.00E1) persisting for at least 3 consecutive months after the insult; or B. Disorganization of motor function in two extremities (see 11.00D1), resulting in an extreme limitation (see 11.00D2) in the ability to stand up from a seated position, balance while standing or walking, or use the upper extremities, persisting for at least 3 consecutive months after the insult; or C. Marked limitation (see 11.00G2) in physical functioning (see 11.00G3a) and in one of the following areas of mental functioning, both persisting for at least 3 consecutive months after the insult: 1. Understanding, remembering, or applying information (see 11.00G3b(i)); or 2. Interacting with others (see 11.00G3b(ii)); or 3. Concentrating, persisting, or maintaining pace (see 11.00G3b(iii)); or 4. Adapting or managing oneself (see 11.00G3b(iv)). --- ## Listing 11.05 — Benign brain tumors, characterized by A or B: {#11.05} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.05* Official source: 11.05 Benign brain tumors, characterized by A or B: A. Disorganization of motor function in two extremities (see 11.00D1), resulting in an extreme limitation (see 11.00D2) in the ability to stand up from a seated position, balance while standing or walking, or use the upper extremities; or B. Marked limitation (see 11.00G2) in physical functioning (see 11.00G3a), and in one of the following: 1. Understanding, remembering, or applying information (see 11.00G3b(i)); or 2. Interacting with others (see 11.00G3b(ii)); or 3. Concentrating, persisting, or maintaining pace (see 11.00G3b(iii)); or 4. Adapting or managing oneself (see 11.00G3b(iv)). --- ## Listing 11.06 — Parkinsonian syndrome, characterized by A or B despite adherence to prescribed treatment for at least 3 consecutive months (see 11.00C): {#11.06} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.06* Official source: 11.06 Parkinsonian syndrome, characterized by A or B despite adherence to prescribed treatment for at least 3 consecutive months (see 11.00C): A. Disorganization of motor function in two extremities (see 11.00D1), resulting in an extreme limitation (see 11.00D2) in the ability to stand up from a seated position, balance while standing or walking, or use the upper extremities; or B. Marked limitation (see 11.00G2) in physical functioning (see 11.00G3a), and in one of the following: 1. Understanding, remembering, or applying information (see 11.00G3b(i)); or 2. Interacting with others (see 11.00G3b(ii)); or 3. Concentrating, persisting, or maintaining pace (see 11.00G3b(iii)); or 4. Adapting or managing oneself (see 11.00G3b(iv)). --- ## Listing 11.07 — Cerebral palsy, characterized by A, B, or C: {#11.07} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.07* Official source: 11.07 Cerebral palsy, characterized by A, B, or C: A. Disorganization of motor function in two extremities (see 11.00D1), resulting in an extreme limitation (see 11.00D2) in the ability to stand up from a seated position, balance while standing or walking, or use the upper extremities; or B. Marked limitation (see 11.00G2) in physical functioning (see 11.00G3a), and in one of the following: 1. Understanding, remembering, or applying information (see 11.00G3b(i)); or 2. Interacting with others (see 11.00G3b(ii)); or 3. Concentrating, persisting, or maintaining pace (see 11.00G3b(iii)); or 4. Adapting or managing oneself (see 11.00G3b(iv)); or C. Significant interference in communication due to speech, hearing, or visual deficit (see 11.00E2). --- ## Listing 11.08 — Spinal cord disorders, characterized by A, B, or C: {#11.08} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.08* Official source: 11.08 Spinal cord disorders, characterized by A, B, or C: A. Complete loss of function, as described in 11.00M2, persisting for 3 consecutive months after the disorder (see 11.00M4); or B. Disorganization of motor function in two extremities (see 11.00D1), resulting in an extreme limitation (see 11.00D2) in the ability to stand up from a seated position, balance while standing or walking, or use the upper extremities persisting for 3 consecutive months after the disorder (see 11.00M4); or C. Marked limitation (see 11.00G2) in physical functioning (see 11.00G3a) and in one of the following areas of mental functioning, both persisting for 3 consecutive months after the disorder (see 11.00M4): 1. Understanding, remembering, or applying information (see 11.00G3b(i)); or 2. Interacting with others (see 11.00G3b(ii)); or 3. Concentrating, persisting, or maintaining pace (see 11.00G3b(iii)); or 4. Adapting or managing oneself (see 11.00G3b(iv)). --- ## Listing 11.09 — Multiple sclerosis, characterized by A or B: {#11.09} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.09* Official source: 11.09 Multiple sclerosis, characterized by A or B: A. Disorganization of motor function in two extremities (see 11.00D1), resulting in an extreme limitation (see 11.00D2) in the ability to stand up from a seated position, balance while standing or walking, or use the upper extremities; or B. Marked limitation (see 11.00G2) in physical functioning (see 11.00G3a), and in one of the following: 1. Understanding, remembering, or applying information (see 11.00G3b(i)); or 2. Interacting with others (see 11.00G3b(ii)); or 3. Concentrating, persisting, or maintaining pace (see 11.00G3b(iii)); or 4. Adapting or managing oneself (see 11.00G3b(iv)). --- ## Listing 11.10 — Amyotrophic lateral sclerosis (ALS) established by clinical and laboratory findings {#11.10} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.10* Official source: 11.10 Amyotrophic lateral sclerosis (ALS) established by clinical and laboratory findings (see 11.00O). --- ## Listing 11.11 — Post-polio syndrome, characterized by A, B, C, or D: {#11.11} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.11* Official source: 11.11 Post-polio syndrome, characterized by A, B, C, or D: A. Disorganization of motor function in two extremities (see 11.00D1), resulting in an extreme limitation (see 11.00D2) in the ability to stand up from a seated position, balance while standing or walking, or use the upper extremities; or B. Unintelligible speech (see 11.00E3); or C. Bulbar and neuromuscular dysfunction (see 11.00F), resulting in: 1. Acute respiratory failure requiring mechanical ventilation; or 2. Need for supplemental enteral nutrition via a gastrostomy or parenteral nutrition via a central venous catheter; or D. Marked limitation (see 11.00G2) in physical functioning (see 11.00G3a), and in one of the following: 1. Understanding, remembering, or applying information (see 11.00G3b(i)); or 2. Interacting with others (see 11.00G3b(ii)); or 3. Concentrating, persisting, or maintaining pace (see 11.00G3b(iii)); or 4. Adapting or managing oneself (see 11.00G3b(iv)). --- ## Listing 11.12 — Myasthenia gravis, characterized by A, B, or C despite adherence to prescribed treatment for at least 3 months {#11.12} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.12* Official source: 11.12 Myasthenia gravis, characterized by A, B, or C despite adherence to prescribed treatment for at least 3 months (see 11.00C): A. Disorganization of motor function in two extremities (see 11.00D1), resulting in an extreme limitation (see 11.00D2) in the ability to stand up from a seated position, balance while standing or walking, or use the upper extremities; or B. Bulbar and neuromuscular dysfunction (see 11.00F), resulting in: 1. One myasthenic crisis requiring mechanical ventilation; or 2. Need for supplemental enteral nutrition via a gastrostomy or parenteral nutrition via a central venous catheter; or C. Marked limitation (see 11.00G2) in physical functioning (see 11.00G3a), and in one of the following: 1. Understanding, remembering, or applying information (see 11.00G3b(i)); or 2. Interacting with others (see 11.00G3b(ii)); or 3. Concentrating, persisting, or maintaining pace (see 11.00G3b(iii)); or 4. Adapting or managing oneself (see 11.00G3b(iv)). --- ## Listing 11.13 — Muscular dystrophy, characterized by A or B: {#11.13} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.13* Official source: 11.13 Muscular dystrophy, characterized by A or B: A. Disorganization of motor function in two extremities (see 11.00D1), resulting in an extreme limitation (see 11.00D2) in the ability to stand up from a seated position, balance while standing or walking, or use the upper extremities; or B. Marked limitation (see 11.00G2) in physical functioning (see 11.00G3a), and in one of the following: 1. Understanding, remembering, or applying information (see 11.00G3b(i)); or 2. Interacting with others (see 11.00G3b(ii)); or 3. Concentrating, persisting, or maintaining pace (see 11.00G3b(iii)); or 4. Adapting or managing oneself (see 11.00G3b(iv)). --- ## Listing 11.14 — Peripheral neuropathy, characterized by A or B: {#11.14} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.14* Official source: 11.14 Peripheral neuropathy, characterized by A or B: A. Disorganization of motor function in two extremities (see 11.00D1), resulting in an extreme limitation (see 11.00D2) in the ability to stand up from a seated position, balance while standing or walking, or use the upper extremities; or B. Marked limitation (see 11.00G2) in physical functioning (see 11.00G3a), and in one of the following: 1. Understanding, remembering, or applying information (see 11.00G3b(i)); or 2. Interacting with others (see 11.00G3b(ii)); or 3. Concentrating, persisting, or maintaining pace (see 11.00G3b(iii)); or 4. Adapting or managing oneself (see 11.00G3b(iv)). --- ## Listing 11.15 — [Reserved] {#11.15} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.15* Official source: 11.15 [Reserved] --- ## Listing 11.16 — [Reserved] {#11.16} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.16* Official source: 11.16 [Reserved] --- ## Listing 11.17 — Neurodegenerative disorders of the central nervous system, such as Huntington's disease, Friedreich's ataxia, and spinocerebellar degeneration, characterized by A or B: {#11.17} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.17* Official source: 11.17 Neurodegenerative disorders of the central nervous system, such as Huntington's disease, Friedreich's ataxia, and spinocerebellar degeneration, characterized by A or B: A. Disorganization of motor function in two extremities (see 11.00D1), resulting in an extreme limitation (see 11.00D2) in the ability to stand up from a seated position, balance while standing or walking, or use the upper extremities; or B. Marked limitation (see 11.00G2) in physical functioning (see 11.00G3a), and in one of the following: 1. Understanding, remembering, or applying information (see 11.00G3b(i)); or 2. Interacting with others (see 11.00G3b(ii)); or 3. Concentrating, persisting, or maintaining pace (see 11.00G3b(iii)); or 4. Adapting or managing oneself (see 11.00G3b(iv)). --- ## Listing 11.18 — Traumatic brain injury, characterized by A or B: {#11.18} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.18* Official source: 11.18 Traumatic brain injury, characterized by A or B: A. Disorganization of motor function in two extremities (see 11.00D1), resulting in an extreme limitation (see 11.00D2) in the ability to stand up from a seated position, balance while standing or walking, or use the upper extremities, persisting for at least 3 consecutive months after the injury; or B. Marked limitation (see 11.00G2) in physical functioning (see 11.00G3a), and in one of the following areas of mental functioning, persisting for at least 3 consecutive months after the injury: 1. Understanding, remembering, or applying information (see 11.00G3b(i)); or 2. Interacting with others (see 11.00G3b(ii)); or 3. Concentrating, persisting, or maintaining pace (see 11.00G3b(iii)); or 4. Adapting or managing oneself (see 11.00G3b(iv)). --- ## Listing 11.19 — [Reserved] {#11.19} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.19* Official source: 11.19 [Reserved] --- ## Listing 11.20 — Coma or persistent vegetative state, persisting for at least 1 month {#11.20} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.20* Official source: 11.20 Coma or persistent vegetative state, persisting for at least 1 month. --- ## Listing 11.21 — [Reserved] {#11.21} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.21* Official source: 11.21 [Reserved] --- ## Listing 11.22 — Motor neuron disorders other than ALS, characterized by A, B, or C: {#11.22} *20 C.F.R. Pt. 404, Subpt. P, App. 1, § 11.22* Official source: 11.22 Motor neuron disorders other than ALS, characterized by A, B, or C: A. Disorganization of motor function in two extremities (see 11.00D1), resulting in an extreme limitation (see 11.00D2) in the ability to stand up from a seated position, balance while standing or walking, or use the upper extremities; or B. Bulbar and neuromuscular dysfunction (see 11.00F), resulting in: 1. Acute respiratory failure requiring invasive mechanical ventilation; or 2. Need for supplemental enteral nutrition via a gastrostomy or parenteral nutrition via a central venous catheter; or C. Marked limitation (see 11.00G2) in physical functioning (see 11.00G3a), and in one of the following: 1. Understanding, remembering, or applying information (see 11.00G3b(i)); or 2. Interacting with others (see 11.00G3b(ii)); or 3. Concentrating, persisting, or maintaining pace (see 11.00G3b(iii)); or 4. Adapting or managing oneself (see 11.00G3b(iv)).