T42
Poisoning by, adverse effect of and underdosing of antiepileptic, sedative- hypnotic and antiparkinsonism drugs
- Release
- FY 2027
- Effective
Official Coding Notes
Reproduced verbatim from the FY 2027 ICD-10-CM files.
Excludes2
drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.--F19.-)
7th Character
The appropriate 7th character is to be added to each code from category T42
7th Character
A - initial encounter
7th Character
D - subsequent encounter
7th Character
S - sequela
More Specific Codes
9 codes under T42
- T42.0 Poisoning by, adverse effect of and underdosing of hydantoin derivatives Has subcodes
- T42.1 Poisoning by, adverse effect of and underdosing of iminostilbenes Has subcodes
- T42.2 Poisoning by, adverse effect of and underdosing of succinimides and oxazolidinediones Has subcodes
- T42.3 Poisoning by, adverse effect of and underdosing of barbiturates Has subcodes
- T42.4 Poisoning by, adverse effect of and underdosing of benzodiazepines Has subcodes
- T42.5 Poisoning by, adverse effect of and underdosing of mixed antiepileptics Has subcodes
- T42.6 Poisoning by, adverse effect of and underdosing of other antiepileptic and sedative-hypnotic drugs Has subcodes
- T42.7 Poisoning by, adverse effect of and underdosing of unspecified antiepileptic and sedative-hypnotic drugs Has subcodes
- T42.8 Poisoning by, adverse effect of and underdosing of antiparkinsonism drugs and other central muscle-tone depressants Has subcodes
Version History
How T42 appears in each release imported from the official files, newest first.
-
FY 2027 Effective
CurrentPoisoning by, adverse effect of and underdosing of antiepileptic, sedative- hypnotic and antiparkinsonism drugs
-
FY 2026 Effective
UnchangedPoisoning by, adverse effect of and underdosing of antiepileptic, sedative- hypnotic and antiparkinsonism drugs
Related Codes
Codes whose official notes reference T42
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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