G90.A Postural orthostatic tachycardia syndrome [POTS]

Billable ICD-10-CM code, FY2026.

Applicable to

• Chronic orthostatic intolerance
• Postural tachycardia syndrome

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) 091-093 in MDC 01.

Diagnosis Index entries for G90.A

• Intolerance › orthostatic, chronic
• POTS (postural orthostatic tachycardia syndrome)
• Syndrome › postural › orthostatic tachycardia [POTS]
• Syndrome › postural › tachycardia

Nearby codes

• G90.59 Complex regional pain syndrome I of other specified site
• G90.8 Other disorders of autonomic nervous system
• G90.81 Serotonin syndrome
• G90.89 Other disorders of autonomic nervous system
• G90.9 Disorder of the autonomic nervous system, unspecified
• G90.A Postural orthostatic tachycardia syndrome [POTS] (this code)
• G90.B LMNB1-related autosomal dominant leukodystrophy