T43.01
Poisoning by, adverse effect of and underdosing of tricyclic antidepressants
- Release
- FY 2027
- Effective
Hierarchy
Where T43.01 sits in the official hierarchy. Each level is the code it is classified under.
- T43 Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified
- T43.0 Parent Poisoning by, adverse effect of and underdosing of tricyclic and tetracyclic antidepressants
- T43.01 This code Poisoning by, adverse effect of and underdosing of tricyclic antidepressants
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.
Excludes2
appetite depressants ( T50.5- )
Inherited from T43 — Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified
Excludes2
barbiturates ( T42.3- )
Inherited from T43 — Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified
Excludes2
benzodiazepines ( T42.4- )
Inherited from T43 — Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified
Excludes2
drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-)
Inherited from T43 — Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified
Excludes2
methaqualone ( T42.6- )
Inherited from T43 — Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified
Excludes2
psychodysleptics [hallucinogens] (T40.7-T40.9-)
Inherited from T43 — Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified
7th Character
The appropriate 7th character is to be added to each code from category T43
Inherited from T43 — Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified
7th Character
A - initial encounter
Inherited from T43 — Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified
7th Character
D - subsequent encounter
Inherited from T43 — Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified
7th Character
S - sequela
Inherited from T43 — Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified
More Specific Codes
6 codes under T43.01
- T43.011 Poisoning by tricyclic antidepressants, accidental (unintentional) Has subcodes
- T43.012 Poisoning by tricyclic antidepressants, intentional self-harm Has subcodes
- T43.013 Poisoning by tricyclic antidepressants, assault Has subcodes
- T43.014 Poisoning by tricyclic antidepressants, undetermined Has subcodes
- T43.015 Adverse effect of tricyclic antidepressants Has subcodes
- T43.016 Underdosing of tricyclic antidepressants Has subcodes
Version History
How T43.01 appears in each release imported from the official files, newest first.
-
FY 2027 Effective
CurrentPoisoning by, adverse effect of and underdosing of tricyclic antidepressants
-
FY 2026 Effective
UnchangedPoisoning by, adverse effect of and underdosing of tricyclic antidepressants
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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