| 8000 | Encephalitis, epidemic, chronic8000 | 2 |
| 8002 | Malignant8002 | 1 |
| 8003 | Benign, minimum8003 | 2 |
| 8004 | Paralysis agitans8004 | formula |
| 8005 | Bulbar palsy8005 | 1 |
| 8007 | Brain, vessels, embolism of.8007 | formula |
| 8008 | Brain, vessels, thrombosis of.8008 | formula |
| 8009 | Brain, vessels, hemorrhage from8009 | 2 |
| 8010 | Myelitis8010 | formula |
| 8011 | Poliomyelitis, anterior8011 | 2 |
| 8012 | Hematomyelia8012 | 1 |
| 8013 | Syphilis, cerebrospinal.8013 | formula |
| 8014 | Syphilis, meningovascular.8014 | formula |
| 8015 | Tabes dorsalis.8015 | formula |
| 8017 | Amyotrophic lateral sclerosis8017 | 1 |
| 8018 | Multiple sclerosis8018 | formula |
| 8019 | Meningitis, cerebrospinal, epidemic8019 | 2 |
| 8020 | Brain, abscess of8020 | 1 |
| 8021 | Malignant8021 | 1 |
| 8022 | Benign, minimum rating8022 | 2 |
| 8023 | Progressive muscular atrophy8023 | formula |
| 8024 | Syringomyelia8024 | formula |
| 8025 | Myasthenia gravis8025 | formula |
| 8045 | Residuals of traumatic brain injury (TBI)8045 | formula |
| 8046 | Cerebral arteriosclerosis8046 | formula |
| 8100 | Migraine8100 | 4 |
| 8103 | Tic, convulsive8103 | formula |
| 8104 | Paramyoclonus multiplex (convulsive state, myoclonic type)8104 | 1 |
| 8105 | Chorea, Sydenham's8105 | 1 |
| 8106 | Chorea, Huntington's.8106 | formula |
| 8107 | Athetosis, acquired.8107 | formula |
| 8108 | Narcolepsy.8108 | formula |
| 8510 | Paralysis of8510 | 4 |
| 8511 | Paralysis of8511 | 4 |
| 8512 | Paralysis of8512 | 4 |
| 8513 | Paralysis of8513 | 4 |
| 8514 | Paralysis of8514 | 4 |
| 8515 | Paralysis of8515 | 4 |
| 8516 | Paralysis of8516 | 4 |
| 8517 | Paralysis of8517 | 4 |
| 8518 | Paralysis of8518 | 4 |
| 8519 | Paralysis of8519 | 4 |
| 8520 | Paralysis of8520 | 2 |
| 8521 | Paralysis of8521 | 1 |
| 8522 | Paralysis of8522 | 1 |
| 8523 | Paralysis of8523 | 1 |
| 8524 | Paralysis of8524 | 1 |
| 8525 | Paralysis of8525 | 1 |
| 8526 | Paralysis of8526 | 1 |
| 8527 | Paralysis of8527 | formula |
| 8528 | Paralysis of8528 | formula |
| 8529 | Paralysis of8529 | formula |
| 8530 | Paralysis of8530 | formula |
| 8540 | Soft-tissue sarcoma (of neurogenic origin)8540 | 1 |
| 8610 | Neuritis.8610 | formula |
| 8611 | Neuritis.8611 | formula |
| 8612 | Neuritis.8612 | formula |
| 8613 | Neuritis.8613 | formula |
| 8614 | Neuritis.8614 | formula |
| 8615 | Neuritis.8615 | formula |
| 8616 | Neuritis.8616 | formula |
| 8617 | Neuritis.8617 | formula |
| 8618 | Neuritis.8618 | formula |
| 8619 | Neuritis.8619 | formula |
| 8620 | Neuritis.8620 | formula |
| 8621 | Neuritis.8621 | formula |
| 8622 | Neuritis.8622 | formula |
| 8623 | Neuritis.8623 | formula |
| 8624 | Neuritis.8624 | formula |
| 8625 | Neuritis.8625 | formula |
| 8626 | Neuritis.8626 | formula |
| 8627 | Neuritis.8627 | formula |
| 8628 | Neuritis.8628 | formula |
| 8629 | Neuritis.8629 | formula |
| 8630 | Neuritis.8630 | formula |
| 8710 | Neuralgia.8710 | formula |
| 8711 | Neuralgia.8711 | formula |
| 8712 | Neuralgia.8712 | formula |
| 8713 | Neuralgia.8713 | formula |
| 8714 | Neuralgia.8714 | formula |
| 8715 | Neuralgia.8715 | formula |
| 8716 | Neuralgia.8716 | formula |
| 8717 | Neuralgia.8717 | formula |
| 8718 | Neuralgia.8718 | formula |
| 8719 | Neuralgia.8719 | formula |
| 8720 | Neuralgia.8720 | formula |
| 8721 | Neuralgia.8721 | formula |
| 8722 | Neuralgia.8722 | formula |
| 8723 | Neuralgia.8723 | formula |
| 8724 | Neuralgia.8724 | formula |
| 8725 | Neuralgia.8725 | formula |
| 8726 | Neuralgia.8726 | formula |
| 8727 | Neuralgia.8727 | formula |
| 8728 | Neuralgia.8728 | formula |
| 8729 | Neuralgia.8729 | formula |
| 8730 | Neuralgia.8730 | formula |
| 8910 | Epilepsy, grand mal.8910 | formula |
| 8911 | Epilepsy, petit mal.8911 | 6 |
| 8912 | Epilepsy, Jacksonian and focal motor or sensory.8912 | formula |
| 8913 | Epilepsy, diencephalic.8913 | formula |
| 8914 | Epilepsy, psychomotor.8914 | formula |