T45
T45: Poisoning by, adverse effect of and underdosing of primarily systemic and hematological agents, not elsewhere classified
Non-billable headerICD-10-CM
T45 is a non-billable header ICD-10-CM code for poisoning by, adverse effect of and underdosing of primarily systemic and hematological agents, not elsewhere classified. 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
Other codes that can never be billed with T45
Their own Excludes1 notes name this code, so the conflict is not listed above.
- T36Poisoning by, adverse effect of and underdosing of systemic antibiotics
- T37.5Poisoning by, adverse effect of and underdosing of antiviral drugs
- T45.1Poisoning by, adverse effect of and underdosing of antineoplastic and immunosuppressive drugs
- T45.APoisoning by, adverse effect of and underdosing of immune checkpoint inhibitors and immunostimulant drugs
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead T45
11 child codes. Green means billable.
- T45.0Poisoning by, adverse effect of and underdosing of antiallergic and antiemetic drugs
- T45.1Poisoning by, adverse effect of and underdosing of antineoplastic and immunosuppressive drugs
- T45.2Poisoning by, adverse effect of and underdosing of vitamins
- T45.3Poisoning by, adverse effect of and underdosing of enzymes
- T45.4Poisoning by, adverse effect of and underdosing of iron and its compounds
- T45.5Poisoning by, adverse effect of and underdosing of anticoagulants and antithrombotic drugs
- T45.6Poisoning by, adverse effect of and underdosing of fibrinolysis-affecting drugs
- T45.7Poisoning by, adverse effect of and underdosing of anticoagulant antagonists, vitamin K and other coagulants
- T45.8Poisoning by, adverse effect of and underdosing of other primarily systemic and hematological agents
- T45.9Poisoning by, adverse effect of and underdosing of unspecified primarily systemic and hematological agent
- T45.APoisoning by, adverse effect of and underdosing of immune checkpoint inhibitors and immunostimulant drugs