337: Disorders of the autonomic nervous system
Includes:
disorders of peripheral autonomic, sympathetic, parasympathetic, or vegetative system
Excludes:
familial dysautonomia [Riley-Day syndrome] (742.8)
337.1 Peripheral autonomic neuropathy in disorders classified elsewhere
Code first underlying disease, as:
amyloidosis (277.30-277.39)
diabetes (249.6, 250.6)
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