Neurological Disorders

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)).

11.03 [Reserved]

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)).

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)).

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)).

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).

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)).

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)).

11.10 Amyotrophic lateral sclerosis (ALS) established by clinical and laboratory findings (see 11.00O).

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)).

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)).

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)).

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)).

11.15 [Reserved]

11.16 [Reserved]

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)).

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)).

11.19 [Reserved]

11.20 Coma or persistent vegetative state, persisting for at least 1 month.

11.21 [Reserved]

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)).