T45.52 — Poisoning by, adverse effect of and underdosing of antithrombotic drugs
T45.52 is a non-billable header ICD-10-CM code for poisoning by, adverse effect of and underdosing of antithrombotic drugs. 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
Excludes2 — not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Poisoning by, adverse effect of and underdosing of antiplatelet drugs
Risk adjustment
T45.52 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 T45.52
6 child codes. Green means billable.
- T45.521Poisoning by antithrombotic drugs, accidental (unintentional)
- T45.522Poisoning by antithrombotic drugs, intentional self-harm
- T45.523Poisoning by antithrombotic drugs, assault
- T45.524Poisoning by antithrombotic drugs, undetermined
- T45.525Adverse effect of antithrombotic drugs
- T45.526Underdosing of antithrombotic drugs
Related codes at this level
Codes that share T45.5. If T45.52 is not quite right, the correct code is usually one of these.
Questions about T45.52
- Is T45.52 a billable ICD-10-CM code?
- No. T45.52 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does T45.52 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).