T48.903Header code — not billable

Poisoning by unspecified agents primarily acting on the respiratory system, assault

Short description: Poisn by unsp agents prim acting on the resp sys, assault

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 T48.903?

T48.903 is an ICD-10-CM diagnosis code for Poisoning by unspecified agents primarily acting on the respiratory system, assault.

Is T48.903 a billable code?

No. T48.903 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is T48.903 in?

T48.903 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.

When did T48.903 become effective?

T48.903 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to T48.903?

T48.903 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.