T56.81 — Toxic effect of thallium
Is T56.81 billable?
No — T56.81 is a non-billable header code. T56.81 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 T56.81.
Billable codes under this header
- T56.811AToxic effect of thallium, accidental (unintentional), initial encounter
- T56.811DToxic effect of thallium, accidental (unintentional), subsequent encounter
- T56.811SToxic effect of thallium, accidental (unintentional), sequela
- T56.812AToxic effect of thallium, intentional self-harm, initial encounter
- T56.812DToxic effect of thallium, intentional self-harm, subsequent encounter
- T56.812SToxic effect of thallium, intentional self-harm, sequela
- T56.813AToxic effect of thallium, assault, initial encounter
- T56.813DToxic effect of thallium, assault, subsequent encounter
- T56.813SToxic effect of thallium, assault, sequela
- T56.814AToxic effect of thallium, undetermined, initial encounter
- T56.814DToxic effect of thallium, undetermined, subsequent encounter
- T56.814SToxic effect of thallium, undetermined, sequela
T56.81 at a glance
| Code | T56.81 |
|---|---|
| Description | Toxic effect of thallium |
| 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 T56.81 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.-)
Excludes1 — never code together — inherited from T56
The conditions below can never be reported together with T56.81 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Use additional code — inherited from Chapter 19
Report an additional code alongside T56.81 to fully describe the condition. T56.81 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 T56.81 to fully describe the condition. T56.81 is sequenced first.
Use additional code — inherited from T56
Report an additional code alongside T56.81 to fully describe the condition. T56.81 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T56.81, but a patient may have both at the same time. When documentation supports it, T56.81 and the excluded code may both be reported.
What codes fall under T56.81? (4)
How long has T56.81 existed?
T56.81 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.