T59.893S — Toxic effect of other specified gases, fumes and vapors, assault, sequela
Is T59.893S billable?
Yes, but T59.893S is an unspecified code. T59.893S is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, T59.893S 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 T59.893S — the more specific alternatives are listed below.
More specific alternatives
- T59.0X1SToxic effect of nitrogen oxides, accidental (unintentional), sequela
- T59.1X1SToxic effect of sulfur dioxide, accidental (unintentional), sequela
- T59.2X1SToxic effect of formaldehyde, accidental (unintentional), sequela
- T59.3X1SToxic effect of lacrimogenic gas, accidental (unintentional), sequela
- T59.4X1SToxic effect of chlorine gas, accidental (unintentional), sequela
- T59.5X1SToxic effect of fluorine gas and hydrogen fluoride, accidental (unintentional), sequela
- T59.6X1SToxic effect of hydrogen sulfide, accidental (unintentional), sequela
- T59.7X1SToxic effect of carbon dioxide, accidental (unintentional), sequela
T59.893S at a glance
| Code | T59.893S |
|---|---|
| Description | Toxic effect of other specified gases, fumes and vapors, assault, sequela |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "S" | sequela |
What does the 7th character "S" mean in T59.893S?
In T59.893S, the 7th character S means sequela. The 7th character is required for T59.893S to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does T59.893S group to?
T59.893S 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.
- 922Other Injury, Poisoning and Toxic Effect Diagnoses with MCCmedical
- 923Other Injury, Poisoning and Toxic Effect Diagnoses without MCCmedical
How is T59.893S listed in the Alphabetic Index?
The Alphabetic Index lists these routes under T59.89, the nearest indexed parent of T59.893S. Use them to find the family, then select the specific code.
- Inhalation › gases, fumes, or vapors › specified agent NEC
Excludes1 — never code together — inherited from T51-T65
The conditions below can never be reported together with T59.893S 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 T59.893S 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 T59.893S to fully describe the condition. T59.893S 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 T59.893S to fully describe the condition. T59.893S is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T59.893S, but a patient may have both at the same time. When documentation supports it, T59.893S and the excluded code may both be reported.
How long has T59.893S existed?
T59.893S 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.