T45.AX
Header — not billablePoisoning by, adverse effect of and underdosing of immune checkpoint inhibitors and immunostimulant drugs
The ICD-10 code for poisoning by, adverse effect of and underdosing of immune checkpoint inhibitors and immunostimulant drugs is T45.AX.
T45.AX is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 6 more specific codes below.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under T45.AX
- T45.AX1Poisoning by immune checkpoint inhibitors and immunostimulant drugs, accidental (unintentional)
- T45.AX2Poisoning by immune checkpoint inhibitors and immunostimulant drugs, intentional self-harm
- T45.AX3Poisoning by immune checkpoint inhibitors and immunostimulant drugs, assault
- T45.AX4Poisoning by immune checkpoint inhibitors and immunostimulant drugs, undetermined
- T45.AX5Adverse effect of immune checkpoint inhibitors and immunostimulant drugs
- T45.AX6Underdosing of immune checkpoint inhibitors and immunostimulant drugs