T48.203A
✓ Billable
Poisoning by unspecified drugs acting on muscles, assault, initial encounter
ICD-10-CM · FY2026 · Injury, Poisoning and Certain Other Consequences of External Causes
Code
T48.203A
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Injury, Poisoning and Certain Other Consequences of External Causes
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code T48.203A?
ICD-10-CM code T48.203A represents Poisoning by unspecified drugs acting on muscles, assault, initial encounter. It is a billable diagnosis code in the Injury, Poisoning and Certain Other Consequences of External Causes chapter, effective October 1, 2025 – September 30, 2026.
Is T48.203A billable?
Yes. T48.203A is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is T48.203A in?
T48.203A belongs to the Injury, Poisoning and Certain Other Consequences of External Causes chapter (S00–T88) of ICD-10-CM.
Related codes in the T48 category
T48
Poisoning by, adverse effect of and underdosing of agents primarily acting on smooth and skeletal muscles and the respiratory system
Non-billable
T48.0
Poisoning by, adverse effect of and underdosing of oxytocic drugs
Non-billable
T48.1
Poisoning by, adverse effect of and underdosing of skeletal muscle relaxants [neuromuscular blocking agents]
Non-billable
T48.2
Poisoning by, adverse effect of and underdosing of other and unspecified drugs acting on muscles
Non-billable
T48.3
Poisoning by, adverse effect of and underdosing of antitussives
Non-billable
T48.4
Poisoning by, adverse effect of and underdosing of expectorants
Non-billable
T48.5
Poisoning by, adverse effect of and underdosing of other anti-common-cold drugs
Non-billable
T48.6
Poisoning by, adverse effect of and underdosing of antiasthmatics, not elsewhere classified
Non-billable
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