T65.851D — Toxic effect of medetomidine, accidental (unintentional), subsequent encounter
T65.851D is a billable, specific ICD-10-CM code for toxic effect of medetomidine, accidental (unintentional), subsequent encounter. It is valid for submission on a claim.
7th character "D" — subsequent encounter
The appropriate 7th character is to be added to each code from category T65
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Toxic effect of medetomidine NOS
Risk adjustment
T65.851D does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code history
What changed, and when. Derived by diffing consecutive CMS release files — which matters when you are defending a code assigned under an earlier edition.
- addedFY2024-FY2027
Toxic effect of medetomidine, accidental (unintentional), subsequent encounter
Related codes at this level
Codes that share T65.851. If T65.851D is not quite right, the correct code is usually one of these.
Questions about T65.851D
- Is T65.851D a billable ICD-10-CM code?
- Yes. T65.851D is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does T65.851D sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Toxic effects of substances chiefly nonmedicinal as to source (T51-T65).