T57.8X1A — Toxic effect of other specified inorganic substances, accidental (unintentional), initial encounter
Is T57.8X1A billable?
Yes, but T57.8X1A is an unspecified code. T57.8X1A is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, T57.8X1A is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting T57.8X1A — the more specific alternatives are listed below.
More specific alternatives
- T57.0X1AToxic effect of arsenic and its compounds, accidental (unintentional), initial encounter
- T57.1X1AToxic effect of phosphorus and its compounds, accidental (unintentional), initial encounter
- T57.2X1AToxic effect of manganese and its compounds, accidental (unintentional), initial encounter
- T57.3X1AToxic effect of hydrogen cyanide, accidental (unintentional), initial encounter
T57.8X1A at a glance
| Code | T57.8X1A |
|---|---|
| Description | Toxic effect of other specified inorganic substances, accidental (unintentional), initial encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "A" | initial encounter |
What does the 7th character "A" mean in T57.8X1A?
In T57.8X1A, the 7th character A means initial encounter. The 7th character is required for T57.8X1A to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does T57.8X1A group to?
T57.8X1A sits in MDC 21 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 917Poisoning and Toxic Effects of Drugs with MCCmedical
- 918Poisoning and Toxic Effects of Drugs without MCCmedical
Inclusion terms
Alternative wording in documentation that is classified to T57.8X1A.
- Toxic effect of other specified inorganic substances NOS
Excludes1 — never code together — inherited from T51-T65
The conditions below can never be reported together with T57.8X1A 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 T57.8X1A to fully describe the condition. T57.8X1A 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 T57.8X1A to fully describe the condition. T57.8X1A is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T57.8X1A, but a patient may have both at the same time. When documentation supports it, T57.8X1A and the excluded code may both be reported.
How long has T57.8X1A existed?
T57.8X1A 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.