T45.1X4D
✓ Billable
Poisoning by antineoplastic and immunosuppressive drugs, undetermined, subsequent encounter
ICD-10-CM · FY2026 · Injury, Poisoning and Certain Other Consequences of External Causes
Code
T45.1X4D
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 T45.1X4D?
ICD-10-CM code T45.1X4D represents Poisoning by antineoplastic and immunosuppressive drugs, undetermined, subsequent 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 T45.1X4D billable?
Yes. T45.1X4D is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is T45.1X4D in?
T45.1X4D belongs to the Injury, Poisoning and Certain Other Consequences of External Causes chapter (S00–T88) of ICD-10-CM.
Related codes in the T45 category
T45
Poisoning by, adverse effect of and underdosing of primarily systemic and hematological agents, not elsewhere classified
Non-billable
T45.0
Poisoning by, adverse effect of and underdosing of antiallergic and antiemetic drugs
Non-billable
T45.1
Poisoning by, adverse effect of and underdosing of antineoplastic and immunosuppressive drugs
Non-billable
T45.2
Poisoning by, adverse effect of and underdosing of vitamins
Non-billable
T45.3
Poisoning by, adverse effect of and underdosing of enzymes
Non-billable
T45.4
Poisoning by, adverse effect of and underdosing of iron and its compounds
Non-billable
T45.5
Poisoning by, adverse effect of and underdosing of anticoagulants and antithrombotic drugs
Non-billable
T45.6
Poisoning by, adverse effect of and underdosing of fibrinolysis-affecting drugs
Non-billable
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