T44 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Poisoning by, adverse effect of and underdosing of drugs primarily affecting the autonomic nervous system.
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The appropriate 7th character is to be added to each code from category T44
A: initial encounter
D: subsequent encounter
S: sequela
Poisoning by, adverse effect of and underdosing of anticholinesterase agents
Poisoning by, adverse effect of and underdosing of other parasympathomimetics [cholinergics]
Poisoning by, adverse effect of and underdosing of ganglionic blocking drugs
Poisoning by, adverse effect of and underdosing of other parasympatholytics [anticholinergics and antimuscarinics] and spasmolytics
Poisoning by, adverse effect of and underdosing of predominantly alpha-adrenoreceptor agonists
Poisoning by, adverse effect of and underdosing of predominantly beta-adrenoreceptor agonists
Poisoning by, adverse effect of and underdosing of alpha-adrenoreceptor antagonists
Poisoning by, adverse effect of and underdosing of beta-adrenoreceptor antagonists
Poisoning by, adverse effect of and underdosing of centrally-acting and adrenergic-neuron- blocking agents
Poisoning by, adverse effect of and underdosing of other and unspecified drugs primarily affecting the autonomic nervous system
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