T45.AX1 — Poisoning by immune checkpoint inhibitors and immunostimulant drugs, accidental (unintentional)
T45.AX1 is a non-billable header ICD-10-CM code for poisoning by immune checkpoint inhibitors and immunostimulant drugs, accidental (unintentional). It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category T45
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Poisoning by immune checkpoint inhibitors and immunosuppressive drugs NOS
Risk adjustment
T45.AX1 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead T45.AX1
3 child codes. Green means billable.
- T45.AX1APoisoning by immune checkpoint inhibitors and immunostimulant drugs, accidental (unintentional), initial encounter
- T45.AX1DPoisoning by immune checkpoint inhibitors and immunostimulant drugs, accidental (unintentional), subsequent encounter
- T45.AX1SPoisoning by immune checkpoint inhibitors and immunostimulant drugs, accidental (unintentional), sequela
Related codes at this level
Codes that share T45.AX. If T45.AX1 is not quite right, the correct code is usually one of these.
- 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
Questions about T45.AX1
- Is T45.AX1 a billable ICD-10-CM code?
- No. T45.AX1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does T45.AX1 sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50).