T59.2X — Toxic effect of formaldehyde
Is T59.2X billable?
No — T59.2X is a non-billable header code. T59.2X 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 T59.2X.
Billable codes under this header
- T59.2X1AToxic effect of formaldehyde, accidental (unintentional), initial encounter
- T59.2X1DToxic effect of formaldehyde, accidental (unintentional), subsequent encounter
- T59.2X1SToxic effect of formaldehyde, accidental (unintentional), sequela
- T59.2X2AToxic effect of formaldehyde, intentional self-harm, initial encounter
- T59.2X2DToxic effect of formaldehyde, intentional self-harm, subsequent encounter
- T59.2X2SToxic effect of formaldehyde, intentional self-harm, sequela
- T59.2X3AToxic effect of formaldehyde, assault, initial encounter
- T59.2X3DToxic effect of formaldehyde, assault, subsequent encounter
- T59.2X3SToxic effect of formaldehyde, assault, sequela
- T59.2X4AToxic effect of formaldehyde, undetermined, initial encounter
- T59.2X4DToxic effect of formaldehyde, undetermined, subsequent encounter
- T59.2X4SToxic effect of formaldehyde, undetermined, sequela
T59.2X at a glance
| Code | T59.2X |
|---|---|
| Description | Toxic effect of formaldehyde |
| 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 T59.2X 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 T59
The conditions below can never be reported together with T59.2X on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- chlorofluorocarbons (T53.5)
Use additional code — inherited from Chapter 19
Report an additional code alongside T59.2X to fully describe the condition. T59.2X 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 T59.2X to fully describe the condition. T59.2X is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T59.2X, but a patient may have both at the same time. When documentation supports it, T59.2X and the excluded code may both be reported.
What codes fall under T59.2X? (4)
How long has T59.2X existed?
T59.2X 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.