T50.Z9
Poisoning by, adverse effect of and underdosing of other vaccines and biological substances
- Release
- FY 2027
- Effective
Hierarchy
Where T50.Z9 sits in the official hierarchy. Each level is the code it is classified under.
- T50 Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances
- T50.Z Parent Poisoning by, adverse effect of and underdosing of other vaccines and biological substances
- T50.Z9 This code Poisoning by, adverse effect of and underdosing of other vaccines and biological substances
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.
7th Character
The appropriate 7th character is to be added to each code from category T50
Inherited from T50 — Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances
7th Character
A - initial encounter
Inherited from T50 — Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances
7th Character
D - subsequent encounter
Inherited from T50 — Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances
7th Character
S - sequela
Inherited from T50 — Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances
More Specific Codes
6 codes under T50.Z9
- T50.Z91 Poisoning by other vaccines and biological substances, accidental (unintentional) Has subcodes
- T50.Z92 Poisoning by other vaccines and biological substances, intentional self-harm Has subcodes
- T50.Z93 Poisoning by other vaccines and biological substances, assault Has subcodes
- T50.Z94 Poisoning by other vaccines and biological substances, undetermined Has subcodes
- T50.Z95 Adverse effect of other vaccines and biological substances Has subcodes
- T50.Z96 Underdosing of other vaccines and biological substances Has subcodes
Version History
How T50.Z9 appears in each release imported from the official files, newest first.
-
FY 2027 Effective
CurrentPoisoning by, adverse effect of and underdosing of other vaccines and biological substances
-
FY 2026 Effective
UnchangedPoisoning by, adverse effect of and underdosing of other vaccines and biological substances
Related Codes
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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