G90 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Disorders of autonomic nervous system.
Type 1 excludes
Dysfunction of the autonomic nervous system due to alcohol (G31.2)
Codes
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
Versions
2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code