T45.3
Header — not billablePoisoning by, adverse effect of and underdosing of enzymes
The ICD-10 code for poisoning by, adverse effect of and underdosing of enzymes is T45.3.
T45.3 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 1 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 T45.3
Related codes in this category
- T45.0Poisoning by, adverse effect of and underdosing of antiallergic and antiemetic drugsnon-billable header
- T45.1Poisoning by, adverse effect of and underdosing of antineoplastic and immunosuppressive drugsnon-billable header
- T45.2Poisoning by, adverse effect of and underdosing of vitaminsnon-billable header
- T45.4Poisoning by, adverse effect of and underdosing of iron and its compoundsnon-billable header
- T45.5Poisoning by, adverse effect of and underdosing of anticoagulants and antithrombotic drugsnon-billable header
- T45.6Poisoning by, adverse effect of and underdosing of fibrinolysis-affecting drugsnon-billable header
- T45.7Poisoning by, adverse effect of and underdosing of anticoagulant antagonists, vitamin K and other coagulantsnon-billable header
- T45.8Poisoning by, adverse effect of and underdosing of other primarily systemic and hematological agentsnon-billable header
- T45.9Poisoning by, adverse effect of and underdosing of unspecified primarily systemic and hematological agentnon-billable header
- T45.APoisoning by, adverse effect of and underdosing of immune checkpoint inhibitors and immunostimulant drugsnon-billable header
- T45.3Poisoning by, adverse effect of and underdosing of enzymesnon-billable header