FY2026 · April
Effective from
- Code-level rules changed
Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified
Category — select a more specific code
CDC/NCHS · FY2026 · AprilA — initial encounter
D — subsequent encounter
S — sequela
code to identify any retained foreign body, if applicable (Z18.-)
toxic reaction to local anesthesia in pregnancy (O29.3-)
For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.
Use the service date for outpatient/professional claims and the discharge date for hospital inpatient claims. Earlier encounters use ICD-9-CM; each individual code must also be valid for the applicable date.
Official coding guidelines → · CMS ↗First observed · 2015-10-01
Latest recorded change · FY2026 · April
Effective from
Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified
Category — select a more specific code
CDC/NCHS · FY2026 · April| All editions | Effective from | Code history |
|---|---|---|
| FY2016 | 2015-10-01 | First observed |
| FY2017 | 2016-10-01 | No tabular change |
| FY2018 | 2017-10-01 | No tabular change |
| FY2019 | 2018-10-01 | Inherited rules changed |
| FY2020 | 2019-10-01 | No tabular change |
| FY2020 · April | 2020-04-01 | No tabular change |
| FY2021 | 2020-10-01 | Inherited rules changed |
| FY2021 · 01-01 | 2021-01-01 | No tabular change |
| FY2022 | 2021-10-01 | No tabular change |
| FY2022 · 04-01 | 2022-04-01 | No tabular change |
| FY2023 | 2022-10-01 | No tabular change |
| FY2023 · 04-01 | 2023-04-01 | No tabular change |
| FY2024 | 2023-10-01 | No tabular change |
| FY2024 · 04-01 | 2024-04-01 | No tabular change |
| FY2025 | 2024-10-01 | No tabular change |
| FY2025 · 04-01 | 2025-04-01 | Inherited rules changed |
| FY2026 | 2025-10-01 | No tabular change |
| FY2026 · April | 2026-04-01 | Code-level rules changed |
| FY2027 | 2026-10-01 | No tabular change |
The appropriate 7th character is to be added to each code from category T43
A — initial encounter
D — subsequent encounter
S — sequela
code to identify any retained foreign body, if applicable (Z18.-)
toxic reaction to local anesthesia in pregnancy (O29.3-)
T43.0Poisoning by, adverse effect of and underdosing of tricyclic and tetracyclic antidepressantsCategory · further specificity requiredT43.1Poisoning by, adverse effect of and underdosing of monoamine-oxidase-inhibitor antidepressantsCategory · further specificity requiredT43.2Poisoning by, adverse effect of and underdosing of other and unspecified antidepressantsCategory · further specificity requiredT43.3Poisoning by, adverse effect of and underdosing of phenothiazine antipsychotics and neurolepticsCategory · further specificity requiredT43.4Poisoning by, adverse effect of and underdosing of butyrophenone and thiothixene neurolepticsCategory · further specificity requiredT43.5Poisoning by, adverse effect of and underdosing of other and unspecified antipsychotics and neurolepticsCategory · further specificity requiredT43.6Poisoning by, adverse effect of and underdosing of psychostimulantsCategory · further specificity requiredT43.8Poisoning by, adverse effect of and underdosing of other psychotropic drugsCategory · further specificity requiredT43.9Poisoning by, adverse effect of and underdosing of unspecified psychotropic drugCategory · further specificity requiredOfficial titles and instructions are preserved in their source language. Official sources ↗