FY2025 · 04-01
Effective from
- Inherited rules changed
Toxic effect of other specified substances
Category — select a more specific code
CDC/NCHS · FY2025 · 04-01code to identify any retained foreign body, if applicable (Z18.-)
contact with and (suspected) exposure to toxic substances (Z77.-)
A — initial encounter
D — subsequent encounter
S — sequela
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 · FY2025 · 04-01
Effective from
Toxic effect of other specified substances
Category — select a more specific code
CDC/NCHS · FY2025 · 04-01| 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 | No tabular change |
| FY2020 | 2019-10-01 | No tabular change |
| FY2020 · April | 2020-04-01 | No tabular change |
| FY2021 | 2020-10-01 | No tabular change |
| 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 | No tabular change |
| FY2027 | 2026-10-01 | No tabular change |
The official Tabular List has no additional instructions at this code level.
Review the instructions inherited from its parent categories below. Inherited instructions ↓
code to identify any retained foreign body, if applicable (Z18.-)
contact with and (suspected) exposure to toxic substances (Z77.-)
When no intent is indicated code to accidental. Undetermined intent is only for use when there is specific documentation in the record that the intent of the toxic effect cannot be determined.
The appropriate 7th character is to be added to each code from category T65
A — initial encounter
D — subsequent encounter
S — sequela
T65.81Toxic effect of latexCategory · further specificity requiredT65.82Toxic effect of harmful algae and algae toxinsCategory · further specificity requiredT65.83Toxic effect of fiberglassCategory · further specificity requiredT65.84Toxic effect of xylazineCategory · further specificity requiredT65.85Toxic effect of medetomidineCategory · further specificity requiredT65.89Toxic effect of other specified substancesCategory · further specificity requiredOther entries in the same category; these are not automatic substitutes.
| Code | Description | Category · further specificity required |
|---|---|---|
| T65.0 | Toxic effect of cyanides | Category · further specificity required |
| T65.1 | Toxic effect of strychnine and its salts | Category · further specificity required |
| T65.2 | Toxic effect of tobacco and nicotine | Category · further specificity required |
| T65.3 | Toxic effect of nitroderivatives and aminoderivatives of benzene and its homologues | Category · further specificity required |
| T65.4 | Toxic effect of carbon disulfide | Category · further specificity required |
| T65.5 | Toxic effect of nitroglycerin and other nitric acids and esters | Category · further specificity required |
| T65.6 | Toxic effect of paints and dyes, not elsewhere classified | Category · further specificity required |
| T65.9 | Toxic effect of unspecified substance | Category · further specificity required |
Official titles and instructions are preserved in their source language. Official sources ↗