FY2027UpcomingSelected edition
Effective from
- Added
Toxic effect of medetomidine, accidental (unintentional)
Category — select a more specific code
CDC/NCHS · FY2027code 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 · 2026-10-01
Latest recorded change · FY2027
Effective from
Toxic effect of medetomidine, accidental (unintentional)
Category — select a more specific code
CDC/NCHS · FY2027| All editions | Effective from | Code history |
|---|---|---|
| FY2027 | 2026-10-01 | Added |
Toxic effect of medetomidine NOS
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
Other entries in the same category; these are not automatic substitutes.
| Code | Description | Category · further specificity required |
|---|---|---|
| T65.852 | Toxic effect of medetomidine, intentional self-harm | Category · further specificity required |
| T65.853 | Toxic effect of medetomidine, assault | Category · further specificity required |
| T65.854 | Toxic effect of medetomidine, undetermined | Category · further specificity required |
Official titles and instructions are preserved in their source language. Official sources ↗