ICD-10-CM 2027
ICD-10 code for dysreflexia
From the official ICD-10-CM alphabetic index entry “Dysreflexia, autonomic”. Page updated September 29, 2026.
About coding dysreflexia
The ICD-10-CM code for dysreflexia is G90.4 (Autonomic dysreflexia).
Within G90 (disorders of autonomic nervous system), G90.4 is specifically for autonomic dysreflexia. Related codes cover idiopathic peripheral autonomic neuropathy (G90.0), familial dysautonomia [Riley-Day] (G90.1), Horner's syndrome (G90.2), Multi-system degeneration of the autonomic nervous system (G90.3), complex regional pain syndrome I (CRPS I) (G90.5), other disorders of autonomic nervous system (G90.8), disorder of the autonomic nervous system, unspecified (G90.9), postural orthostatic tachycardia syndrome [POTS] (G90.A) and 1 more.
Use an additional code to identify the cause, such as: fecal impaction (K56.41), pressure ulcer (pressure area) (L89.-) and urinary tract infection (N39.0).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Common questions about dysreflexia ICD-10 codes
What is the ICD-10 code for dysreflexia?
- G90.4 — Autonomic dysreflexia.
Is G90.4 billable?
- Yes. G90.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can G90.4 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict G90.4 as a principal diagnosis.
Is G90.4 a CC or MCC?
- No. G90.4 is neither a CC nor an MCC under MS-DRG v44.0.