G90Disorders of autonomic nervous system
ICD-10-CM category (non-billable header) code — part of Other disorders of the nervous system (G89-G99)
Coding Notes
Excludes1 (never code both together)
- dysfunction of the autonomic nervous system due to alcohol (G31.2)
Subcategories (10)
- G90.0 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)
- G90.8 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