T51.1 — Toxic effect of methanol
Is T51.1 billable?
No — T51.1 is a non-billable header code. T51.1 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 T51.1.
Billable codes under this header
- T51.1X1AToxic effect of methanol, accidental (unintentional), initial encounter
- T51.1X1DToxic effect of methanol, accidental (unintentional), subsequent encounter
- T51.1X1SToxic effect of methanol, accidental (unintentional), sequela
- T51.1X2AToxic effect of methanol, intentional self-harm, initial encounter
- T51.1X2DToxic effect of methanol, intentional self-harm, subsequent encounter
- T51.1X2SToxic effect of methanol, intentional self-harm, sequela
- T51.1X3AToxic effect of methanol, assault, initial encounter
- T51.1X3DToxic effect of methanol, assault, subsequent encounter
- T51.1X3SToxic effect of methanol, assault, sequela
- T51.1X4AToxic effect of methanol, undetermined, initial encounter
- T51.1X4DToxic effect of methanol, undetermined, subsequent encounter
- T51.1X4SToxic effect of methanol, undetermined, sequela
T51.1 at a glance
| Code | T51.1 |
|---|---|
| Description | Toxic effect of methanol |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Inclusion terms
Alternative wording in documentation that is classified to T51.1.
- Toxic effect of methyl alcohol
Excludes1 — never code together — inherited from T51-T65
The conditions below can never be reported together with T51.1 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 T51.1 to fully describe the condition. T51.1 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 T51.1 to fully describe the condition. T51.1 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T51.1, but a patient may have both at the same time. When documentation supports it, T51.1 and the excluded code may both be reported.
What codes fall under T51.1? (1)
How long has T51.1 existed?
T51.1 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.