T44
T44: Poisoning by, adverse effect of and underdosing of drugs primarily affecting the autonomic nervous system
Non-billable headerICD-10-CM
T44 is a non-billable header ICD-10-CM code for poisoning by, adverse effect of and underdosing of drugs primarily affecting the autonomic nervous system. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category T44
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Other codes that can never be billed with T44
Their own Excludes1 notes name this code, so the conflict is not listed above.
- T46Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system
- T46.2Poisoning by, adverse effect of and underdosing of other antidysrhythmic drugs, not elsewhere classified
- T46.7Poisoning by, adverse effect of and underdosing of peripheral vasodilators
- T48.6Poisoning by, adverse effect of and underdosing of antiasthmatics, not elsewhere classified
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead T44
10 child codes. Green means billable.
- T44.0Poisoning by, adverse effect of and underdosing of anticholinesterase agents
- T44.1Poisoning by, adverse effect of and underdosing of other parasympathomimetics [cholinergics]
- T44.2Poisoning by, adverse effect of and underdosing of ganglionic blocking drugs
- T44.3Poisoning by, adverse effect of and underdosing of other parasympatholytics [anticholinergics and antimuscarinics] and spasmolytics
- T44.4Poisoning by, adverse effect of and underdosing of predominantly alpha-adrenoreceptor agonists
- T44.5Poisoning by, adverse effect of and underdosing of predominantly beta-adrenoreceptor agonists
- T44.6Poisoning by, adverse effect of and underdosing of alpha-adrenoreceptor antagonists
- T44.7Poisoning by, adverse effect of and underdosing of beta-adrenoreceptor antagonists
- T44.8Poisoning by, adverse effect of and underdosing of centrally-acting and adrenergic-neuron- blocking agents
- T44.9Poisoning by, adverse effect of and underdosing of other and unspecified drugs primarily affecting the autonomic nervous system