T45.91
Poisoning by unspecified primarily systemic and hematological agent, accidental (unintentional)
- Release
- FY 2027
- Effective
Hierarchy
Where T45.91 sits in the official hierarchy. Each level is the code it is classified under.
- T45 Poisoning by, adverse effect of and underdosing of primarily systemic and hematological agents, not elsewhere classified
- T45.9 Parent Poisoning by, adverse effect of and underdosing of unspecified primarily systemic and hematological agent
- T45.91 This code Poisoning by unspecified primarily systemic and hematological agent, accidental (unintentional)
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.
Inclusion Terms
Poisoning by primarily systemic and hematological agent NOS
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
3 codes under T45.91
- T45.91XA Poisoning by unspecified primarily systemic and hematological agent, accidental (unintentional), initial encounter Billable
- T45.91XD Poisoning by unspecified primarily systemic and hematological agent, accidental (unintentional), subsequent encounter Billable
- T45.91XS Poisoning by unspecified primarily systemic and hematological agent, accidental (unintentional), sequela Billable
Version History
How T45.91 appears in each release imported from the official files, newest first.
-
FY 2027 Effective
CurrentPoisoning by unspecified primarily systemic and hematological agent, accidental (unintentional)
-
FY 2026 Effective
UnchangedPoisoning by unspecified primarily systemic and hematological agent, accidental (unintentional)
Related Codes
Other codes under T45.9
- T45.92 Poisoning by unspecified primarily systemic and hematological agent, intentional self-harm
- T45.93 Poisoning by unspecified primarily systemic and hematological agent, assault
- T45.94 Poisoning by unspecified primarily systemic and hematological agent, undetermined
- T45.95 Adverse effect of unspecified primarily systemic and hematological agent
- T45.96 Underdosing of unspecified primarily systemic and hematological agent
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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