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Disorders of orthostatic tolerance

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

Disorders characterized by symptomatic arterial hypotension (lightheadedness, fatigue) when assuming an upright position usually due to dysfunction of adrenergic regulation.

code elsewhere

• Orthostatic hypotension  (BA21)

sections/codes in this section (8D89-8D89)

• Reflex syncope  (8D89.0)
• Syncope due to autonomic failure  (8D89.1)
• Postural orthostatic tachycardia syndrome  (8D89.2)
• Baroreflex failure  (8D89.3)
• Other specified disorders of orthostatic tolerance  (8D89.Y)
• Disorders of orthostatic tolerance, unspecified  (8D89.Z)

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