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