T65.89 — Toxic effect of other specified substances
Is T65.89 billable?
No — T65.89 is a non-billable header code. T65.89 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 12 billable codes beneath T65.89.
Billable codes under this header
- T65.891AToxic effect of other specified substances, accidental (unintentional), initial encounter
- T65.891DToxic effect of other specified substances, accidental (unintentional), subsequent encounter
- T65.891SToxic effect of other specified substances, accidental (unintentional), sequela
- T65.892AToxic effect of other specified substances, intentional self-harm, initial encounter
- T65.892DToxic effect of other specified substances, intentional self-harm, subsequent encounter
- T65.892SToxic effect of other specified substances, intentional self-harm, sequela
- T65.893AToxic effect of other specified substances, assault, initial encounter
- T65.893DToxic effect of other specified substances, assault, subsequent encounter
- T65.893SToxic effect of other specified substances, assault, sequela
- T65.894AToxic effect of other specified substances, undetermined, initial encounter
- T65.894DToxic effect of other specified substances, undetermined, subsequent encounter
- T65.894SToxic effect of other specified substances, undetermined, sequela
T65.89 at a glance
| Code | T65.89 |
|---|---|
| Description | Toxic effect of other specified substances |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together — inherited from T51-T65
The conditions below can never be reported together with T65.89 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- contact with and (suspected) exposure to toxic substances (Z77.-)
Use additional code — inherited from Chapter 19
Report an additional code alongside T65.89 to fully describe the condition. T65.89 is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Use additional code — inherited from T51-T65
Report an additional code alongside T65.89 to fully describe the condition. T65.89 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T65.89, but a patient may have both at the same time. When documentation supports it, T65.89 and the excluded code may both be reported.
What codes fall under T65.89? (4)
- T65.891Toxic effect of other specified substances, accidental (unintentional)not billable
- T65.892Toxic effect of other specified substances, intentional self-harmnot billable
- T65.893Toxic effect of other specified substances, assaultnot billable
- T65.894Toxic effect of other specified substances, undeterminednot billable
How long has T65.89 existed?
T65.89 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.