T44 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Poisoning by, adverse effect of and underdosing of drugs primarily affecting the autonomic nervous system.
Seventh character note
The appropriate 7th character is to be added to each code from category T44
Seventh character extensions
A: initial encounter
D: subsequent encounter
S: sequela
Codes
T44.0
Poisoning by, adverse effect of and underdosing of anticholinesterase agents
T44.1
Poisoning by, adverse effect of and underdosing of other parasympathomimetics [cholinergics]
T44.2
Poisoning by, adverse effect of and underdosing of ganglionic blocking drugs
T44.3
Poisoning by, adverse effect of and underdosing of other parasympatholytics [anticholinergics and antimuscarinics] and spasmolytics
T44.4
Poisoning by, adverse effect of and underdosing of predominantly alpha-adrenoreceptor agonists
T44.5
Poisoning by, adverse effect of and underdosing of predominantly beta-adrenoreceptor agonists
T44.6
Poisoning by, adverse effect of and underdosing of alpha-adrenoreceptor antagonists
T44.7
Poisoning by, adverse effect of and underdosing of beta-adrenoreceptor antagonists
T44.8
Poisoning by, adverse effect of and underdosing of centrally-acting and adrenergic-neuron- blocking agents
T44.9
Poisoning by, adverse effect of and underdosing of other and unspecified drugs primarily affecting the autonomic nervous system
Versions
2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code