8D89 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
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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