Other disorders of the nervous system (G89-G99)
Browse all the diagnosis codes used for other disorders of the nervous system (g89-g99). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.
Diseases of the nervous system (G00–G99)
Other disorders of the nervous system (G89-G99)
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 (G89)
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
- G90.9 Disorder of the autonomic nervous system, unspecified
- G90.A Postural orthostatic tachycardia syndrome [POTS]
- G90.B LMNB1-related autosomal dominant leukodystrophy NEW CODE
Disorders of autonomic nervous system (G90)
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 (G91)
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 (G92)
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 Megaloencephalic leukoencephalopathy with subcortical cysts NEW CODE
- G93.43 Leukoencephalopathy with calcifications and cysts NEW CODE
- G93.44 Adult-onset leukodystrophy with axonal spheroids NEW CODE
- 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 (G93)
- G94 Other disorders of brain in diseases classified elsewhere
Other disorders of brain in diseases classified elsewhere (G94)
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 (G95)
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 (G96)
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 (G97)
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 (G98)
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 (G99)