T43.3X6S
Underdosing of phenothiazine antipsychotics and neuroleptics, sequela
- Release
- FY 2027
- Effective
Hierarchy
Where T43.3X6S 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
- T43.3 Poisoning by, adverse effect of and underdosing of phenothiazine antipsychotics and neuroleptics
- T43.3X Poisoning by, adverse effect of and underdosing of phenothiazine antipsychotics and neuroleptics
- T43.3X6 Parent Underdosing of phenothiazine antipsychotics and neuroleptics
- T43.3X6S This code Underdosing of phenothiazine antipsychotics and neuroleptics, sequela
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
Version History
How T43.3X6S appears in each release imported from the official files, newest first.
-
FY 2027 Effective
CurrentUnderdosing of phenothiazine antipsychotics and neuroleptics, sequela
-
FY 2026 Effective
UnchangedUnderdosing of phenothiazine antipsychotics and neuroleptics, sequela
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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