Coding for Chronic Orthostatic Hypotension

Question:

How is orthostatic hypotension coded in ICD-10? Does the pathophysiology or severity of OH impact the code choice?

Answer:

Orthostatic hypotension (OH) can be divided into 2 pathophysiological subtypes: neurogenic and non-neurogenic.

In ICD-10, chronic neurogenic orthostatic hypotension is coded to G90.3 (HCC 78) and chronic non-neurogenic orthostatic hypotension is coded to I95.1 or I95.2, if OH is due to drugs. See ICD-10 Index below. 

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