T44.905ABillable
Adverse effect of unspecified drugs primarily affecting the autonomic nervous system, initial encounter
Short description: Advrs effect of unsp drugs aff the autonm nervous sys, init
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes
- Category
- T44
- Effective date
- October 1, 2026
Related codes in category T44
T44Drugs primarily affecting the autonomic nervous systemT44.0Anticholinesterase agentsT44.0XAnticholinesterase agentsT44.0X1Poisoning by anticholin agents, accidental (unintentional)T44.0X1APoisoning by anticholin agents, accidental, initYesT44.0X1DPoisoning by anticholin agents, accidental, subsYesT44.0X1SPoisoning by anticholin agents, accidental, sequelaYesT44.0X2Poisoning by anticholinesterase agents, self-harmT44.0X2APoisoning by anticholinesterase agents, self-harm, initYesT44.0X2DPoisoning by anticholinesterase agents, self-harm, subsYesT44.0X2SPoisoning by anticholinesterase agents, self-harm, sequelaYesT44.0X3Poisoning by anticholinesterase agents, assault
Frequently asked questions
What is ICD-10 code T44.905A?
T44.905A is an ICD-10-CM diagnosis code for Adverse effect of unspecified drugs primarily affecting the autonomic nervous system, initial encounter.
Is T44.905A a billable code?
Yes. T44.905A is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is T44.905A in?
T44.905A falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did T44.905A become effective?
T44.905A has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to T44.905A?
T44.905A belongs to category T44, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.