T48.991ABillable
Poisoning by other agents primarily acting on the respiratory system, accidental (unintentional), initial encounter
Short description: Poisn by oth agents prim acting on the resp sys, acc, init
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes
- Category
- T48
- Effective date
- October 1, 2026
Related codes in category T48
T48Agents prim act on smooth and skeletal musc and the resp sysT48.0Oxytocic drugsT48.0XOxytocic drugsT48.0X1Poisoning by oxytocic drugs, accidental (unintentional)T48.0X1APoisoning by oxytocic drugs, accidental, initYesT48.0X1DPoisoning by oxytocic drugs, accidental, subsYesT48.0X1SPoisoning by oxytocic drugs, accidental, sequelaYesT48.0X2Poisoning by oxytocic drugs, intentional self-harmT48.0X2APoisoning by oxytocic drugs, intentional self-harm, initYesT48.0X2DPoisoning by oxytocic drugs, intentional self-harm, subsYesT48.0X2SPoisoning by oxytocic drugs, intentional self-harm, sequelaYesT48.0X3Poisoning by oxytocic drugs, assault
Frequently asked questions
What is ICD-10 code T48.991A?
T48.991A is an ICD-10-CM diagnosis code for Poisoning by other agents primarily acting on the respiratory system, accidental (unintentional), initial encounter.
Is T48.991A a billable code?
Yes. T48.991A is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is T48.991A in?
T48.991A falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did T48.991A become effective?
T48.991A has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to T48.991A?
T48.991A belongs to category T48, 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.