T45.1X2

⚠ Non-billable (Header)

Poisoning by antineoplastic and immunosuppressive drugs, intentional self-harm

Injury, poisoning and certain other consequences of external causes (S00-T88)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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❌ Excludes1

inherited

Rules inherited from parent codes in the hierarchy.

T45.1

• poisoning by, adverse effect of and underdosing of immune checkpoint inhibitors and immunostimulant drugs (T45.A)
• poisoning by, adverse effect of and underdosing of tamoxifen (T38.6)

Child Codes (3)

T45.1X2APoisoning by antineoplastic and immunosuppressive drugs, intentional self-harm, initial encounter✓ Billable T45.1X2DPoisoning by antineoplastic and immunosuppressive drugs, intentional self-harm, subsequent encounter✓ Billable T45.1X2SPoisoning by antineoplastic and immunosuppressive drugs, intentional self-harm, sequela✓ Billable

Clinical Description

ICD-10-CM code T45.1X2 represents poisoning by antineoplastic and immunosuppressive drugs, intentional self-harm. This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.

This is a 7-character code at the 6th level of specificity. There are 3 more specific child codes under T45.1X2. Coders should note that T45.1X2 has 2 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.

Frequently Asked Questions

What is ICD-10 code T45.1X2?

ICD-10-CM code T45.1X2 is "Poisoning by antineoplastic and immunosuppressive drugs, intentional self-harm". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).

Is T45.1X2 a billable ICD-10 code?

No, T45.1X2 is a non-billable header code. A more specific child code must be used for billing.

What codes are excluded with T45.1X2?

T45.1X2 has 2 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.

Related Codes in T45.1X

Other codes in the same category that may be relevant for differential coding:

T45.1X1Poisoning by antineoplastic and immunosuppressive drugs, accidental (unintentional)T45.1X3Poisoning by antineoplastic and immunosuppressive drugs, assault T45.1X4Poisoning by antineoplastic and immunosuppressive drugs, undetermined T45.1X5Adverse effect of antineoplastic and immunosuppressive drugs T45.1X6Underdosing of antineoplastic and immunosuppressive drugs

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Code Information

CodeT45.1X2

BillableNo — Header code

ParentT45.1X

CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)

Excludes12 rule(s)

Excludes20 note(s)

Child codes3

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)