G90.4 Autonomic dysreflexia

Billable ICD-10-CM code, FY2026.

Use additional code

• code to identify the cause, such as:
• fecal impaction (K56.41)
• pressure ulcer (pressure area) (L89.-)
• urinary tract infection (N39.0)

Applies from G90 Disorders of autonomic nervous system

Excludes1 (never code together)

• dysfunction of the autonomic nervous system due to alcohol (G31.2)

MS-DRG index

Defines the logic of DRG(s) 073-074 in MDC 01.

Approximate ICD-9-CM (GEMs)

• 337.3 Autonomic dysreflexia

Diagnosis Index entries for G90.4

• Dysreflexia, autonomic

Nearby codes

• 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 (this code)
• 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