T45.1
Poisoning by, adverse effect of and underdosing of antineoplastic and immunosuppressive drugs
- Release
- FY 2027
- Effective
Hierarchy
Where T45.1 sits in the official hierarchy. Each level is the code it is classified under.
- T45 Parent Poisoning by, adverse effect of and underdosing of primarily systemic and hematological agents, not elsewhere classified
- T45.1 This code Poisoning by, adverse effect of and underdosing of antineoplastic and immunosuppressive drugs
Official Coding Notes
Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.
Excludes1
poisoning by, adverse effect of and underdosing of immune checkpoint inhibitors and immunostimulant drugs ( T45.A )
Excludes1
poisoning by, adverse effect of and underdosing of tamoxifen ( T38.6 )
7th Character
The appropriate 7th character is to be added to each code from category T45
Inherited from T45 — Poisoning by, adverse effect of and underdosing of primarily systemic and hematological agents, not elsewhere classified
7th Character
A - initial encounter
Inherited from T45 — Poisoning by, adverse effect of and underdosing of primarily systemic and hematological agents, not elsewhere classified
7th Character
D - subsequent encounter
Inherited from T45 — Poisoning by, adverse effect of and underdosing of primarily systemic and hematological agents, not elsewhere classified
7th Character
S - sequela
Inherited from T45 — Poisoning by, adverse effect of and underdosing of primarily systemic and hematological agents, not elsewhere classified
More Specific Codes
1 code under T45.1
Version History
How T45.1 appears in each release imported from the official files, newest first.
-
FY 2027 Effective
CurrentPoisoning by, adverse effect of and underdosing of antineoplastic and immunosuppressive drugs
-
FY 2026 Effective
UnchangedPoisoning by, adverse effect of and underdosing of antineoplastic and immunosuppressive drugs
Related Codes
Other codes under T45
- T45.0 Poisoning by, adverse effect of and underdosing of antiallergic and antiemetic drugs
- T45.2 Poisoning by, adverse effect of and underdosing of vitamins
- T45.3 Poisoning by, adverse effect of and underdosing of enzymes
- T45.4 Poisoning by, adverse effect of and underdosing of iron and its compounds
- T45.5 Poisoning by, adverse effect of and underdosing of anticoagulants and antithrombotic drugs
- T45.6 Poisoning by, adverse effect of and underdosing of fibrinolysis-affecting drugs
- T45.7 Poisoning by, adverse effect of and underdosing of anticoagulant antagonists, vitamin K and other coagulants
- T45.8 Poisoning by, adverse effect of and underdosing of other primarily systemic and hematological agents
- T45.9 Poisoning by, adverse effect of and underdosing of unspecified primarily systemic and hematological agent
- T45.A Poisoning by, adverse effect of and underdosing of immune checkpoint inhibitors and immunostimulant drugs
Codes whose official notes reference T45.1
Data Source
Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.
- Release
- FY 2027
- Effective
- Source file
- icd10cm-code-descriptions-2027.zip
Official ICD-10-CM source files (opens in a new tab)
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