Section G89-G99 | Other disorders of the nervous system

G89

Code hierarchy

G89 Pain, not elsewhere classified
- G89.0 Central pain syndrome
- G89.1 Acute pain, not elsewhere classified
  - G89.11 Acute pain due to trauma
  - G89.12 Acute post-thoracotomy pain
  - G89.18 Other acute postprocedural pain
- G89.2 Chronic pain, not elsewhere classified
  - G89.21 Chronic pain due to trauma
  - G89.22 Chronic post-thoracotomy pain
  - G89.28 Other chronic postprocedural pain
  - G89.29 Other chronic pain
- G89.3 Neoplasm related pain (acute) (chronic)
- G89.4 Chronic pain syndrome

Pain, not elsewhere classified

G90

Code hierarchy

G90 Disorders of autonomic nervous system
- G90.0 Idiopathic peripheral autonomic neuropathy
  - G90.01 Carotid sinus syncope
  - G90.09 Other idiopathic peripheral autonomic neuropathy
- G90.1 Familial dysautonomia [Riley-Day]
- G90.2 Horner's syndrome
- G90.3 Multi-system degeneration of the autonomic nervous system
- G90.4 Autonomic dysreflexia
- G90.5 Complex regional pain syndrome I (CRPS I)
  - G90.50 Complex regional pain syndrome I, unspecified
  - G90.51 Complex regional pain syndrome I of upper limb
    - G90.511 Complex regional pain syndrome I of right upper limb
    - G90.512 Complex regional pain syndrome I of left upper limb
    - G90.513 Complex regional pain syndrome I of upper limb, bilateral
    - G90.519 Complex regional pain syndrome I of unspecified upper limb
  - G90.52 Complex regional pain syndrome I of lower limb
    - G90.521 Complex regional pain syndrome I of right lower limb
    - G90.522 Complex regional pain syndrome I of left lower limb
    - G90.523 Complex regional pain syndrome I of lower limb, bilateral
    - G90.529 Complex regional pain syndrome I of unspecified lower limb
  - G90.59 Complex regional pain syndrome I of other specified site
- G90.8 Other disorders of autonomic nervous system
  - G90.81 Serotonin syndrome
  - G90.89 Other disorders of autonomic nervous system
- G90.9 Disorder of the autonomic nervous system, unspecified
- G90.A Postural orthostatic tachycardia syndrome [POTS]
- G90.B LMNB1-related autosomal dominant leukodystrophy

Disorders of autonomic nervous system

G91

Code hierarchy

G91 Hydrocephalus
- G91.0 Communicating hydrocephalus
- G91.1 Obstructive hydrocephalus
- G91.2 (Idiopathic) normal pressure hydrocephalus
- G91.3 Post-traumatic hydrocephalus, unspecified
- G91.4 Hydrocephalus in diseases classified elsewhere
- G91.8 Other hydrocephalus
- G91.9 Hydrocephalus, unspecified

Hydrocephalus

G92

Code hierarchy

G92 Toxic encephalopathy
- G92.0 Immune effector cell-associated neurotoxicity syndrome
  - G92.00 Immune effector cell-associated neurotoxicity syndrome, grade unspecified
  - G92.01 Immune effector cell-associated neurotoxicity syndrome, grade 1
  - G92.02 Immune effector cell-associated neurotoxicity syndrome, grade 2
  - G92.03 Immune effector cell-associated neurotoxicity syndrome, grade 3
  - G92.04 Immune effector cell-associated neurotoxicity syndrome, grade 4
  - G92.05 Immune effector cell-associated neurotoxicity syndrome, grade 5
- G92.8 Other toxic encephalopathy
- G92.9 Unspecified toxic encephalopathy

Toxic encephalopathy

G93

Code hierarchy

G93 Other disorders of brain
- G93.0 Cerebral cysts
- G93.1 Anoxic brain damage, not elsewhere classified
- G93.2 Benign intracranial hypertension
- G93.3 Postviral and related fatigue syndromes
  - G93.31 Postviral fatigue syndrome
  - G93.32 Myalgic encephalomyelitis/chronic fatigue syndrome
  - G93.39 Other post infection and related fatigue syndromes
- G93.4 Other and unspecified encephalopathy
  - G93.40 Encephalopathy, unspecified
  - G93.41 Metabolic encephalopathy
  - G93.42 Megalencephalic leukoencephalopathy with subcortical cysts
  - G93.43 Leukoencephalopathy with calcifications and cysts
  - G93.44 Adult-onset leukodystrophy with axonal spheroids
  - G93.45 Developmental and epileptic encephalopathy
  - G93.49 Other encephalopathy
- G93.5 Compression of brain
- G93.6 Cerebral edema
- G93.7 Reye's syndrome
- G93.8 Other specified disorders of brain
  - G93.81 Temporal sclerosis
  - G93.82 Brain death
  - G93.89 Other specified disorders of brain
- G93.9 Disorder of brain, unspecified

Other disorders of brain

G94

Other disorders of brain in diseases classified elsewhere

G95

Code hierarchy

G95 Other and unspecified diseases of spinal cord
- G95.0 Syringomyelia and syringobulbia
- G95.1 Vascular myelopathies
  - G95.11 Acute infarction of spinal cord (embolic) (nonembolic)
  - G95.19 Other vascular myelopathies
- G95.2 Other and unspecified cord compression
  - G95.20 Unspecified cord compression
  - G95.29 Other cord compression
- G95.8 Other specified diseases of spinal cord
  - G95.81 Conus medullaris syndrome
  - G95.89 Other specified diseases of spinal cord
- G95.9 Disease of spinal cord, unspecified

Other and unspecified diseases of spinal cord

G96

Code hierarchy

G96 Other disorders of central nervous system
- G96.0 Cerebrospinal fluid leak
  - G96.00 Cerebrospinal fluid leak, unspecified
  - G96.01 Cranial cerebrospinal fluid leak, spontaneous
  - G96.02 Spinal cerebrospinal fluid leak, spontaneous
  - G96.08 Other cranial cerebrospinal fluid leak
  - G96.09 Other spinal cerebrospinal fluid leak
- G96.1 Disorders of meninges, not elsewhere classified
  - G96.11 Dural tear
  - G96.12 Meningeal adhesions (cerebral) (spinal)
  - G96.19 Other disorders of meninges, not elsewhere classified
    - G96.191 Perineural cyst
    - G96.198 Other disorders of meninges, not elsewhere classified
- G96.8 Other specified disorders of central nervous system
  - G96.81 Intracranial hypotension
    - G96.810 Intracranial hypotension, unspecified
    - G96.811 Intracranial hypotension, spontaneous
    - G96.819 Other intracranial hypotension
  - G96.89 Other specified disorders of central nervous system
- G96.9 Disorder of central nervous system, unspecified

Other disorders of central nervous system

G97

Code hierarchy

G97 Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classified
- G97.0 Cerebrospinal fluid leak from spinal puncture
- G97.1 Other reaction to spinal and lumbar puncture
- G97.2 Intracranial hypotension following ventricular shunting
- G97.3 Intraoperative hemorrhage and hematoma of a nervous system organ or structure complicating a procedure
  - G97.31 Intraoperative hemorrhage and hematoma of a nervous system organ or structure complicating a nervous system procedure
  - G97.32 Intraoperative hemorrhage and hematoma of a nervous system organ or structure complicating other procedure
- G97.4 Accidental puncture and laceration of a nervous system organ or structure during a procedure
  - G97.41 Accidental puncture or laceration of dura during a procedure
  - G97.48 Accidental puncture and laceration of other nervous system organ or structure during a nervous system procedure
  - G97.49 Accidental puncture and laceration of other nervous system organ or structure during other procedure
- G97.5 Postprocedural hemorrhage of a nervous system organ or structure following a procedure
  - G97.51 Postprocedural hemorrhage of a nervous system organ or structure following a nervous system procedure
  - G97.52 Postprocedural hemorrhage of a nervous system organ or structure following other procedure
- G97.6 Postprocedural hematoma and seroma of a nervous system organ or structure following a procedure
  - G97.61 Postprocedural hematoma of a nervous system organ or structure following a nervous system procedure
  - G97.62 Postprocedural hematoma of a nervous system organ or structure following other procedure
  - G97.63 Postprocedural seroma of a nervous system organ or structure following a nervous system procedure
  - G97.64 Postprocedural seroma of a nervous system organ or structure following other procedure
- G97.8 Other intraoperative and postprocedural complications and disorders of nervous system
  - G97.81 Other intraoperative complications of nervous system
  - G97.82 Other postprocedural complications and disorders of nervous system
  - G97.83 Intracranial hypotension following lumbar cerebrospinal fluid shunting
  - G97.84 Intracranial hypotension following other procedure

Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classified

G98

Code hierarchy

G98 Other disorders of nervous system not elsewhere classified
- G98.0 Neurogenic arthritis, not elsewhere classified
- G98.8 Other disorders of nervous system

Other disorders of nervous system not elsewhere classified

G99

Code hierarchy

G99 Other disorders of nervous system in diseases classified elsewhere
- G99.0 Autonomic neuropathy in diseases classified elsewhere
- G99.2 Myelopathy in diseases classified elsewhere
- G99.8 Other specified disorders of nervous system in diseases classified elsewhere

Other disorders of nervous system in diseases classified elsewhere

Section G89-G99 Other disorders of the nervous system G89-G99

Code List:

Code hierarchy

Code hierarchy

Code hierarchy

Code hierarchy

Code hierarchy

Code hierarchy

Code hierarchy

Code hierarchy

Code hierarchy

Code hierarchy

Code hierarchy