T53.91 — Toxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, accidental (unintentional)
Is T53.91 billable?
No — T53.91 is a non-billable header code. T53.91 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 3 billable codes beneath T53.91.
Billable codes under this header
- T53.91XAToxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, accidental (unintentional), initial encounter
- T53.91XDToxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, accidental (unintentional), subsequent encounter
- T53.91XSToxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, accidental (unintentional), sequela
T53.91 at a glance
| Code | T53.91 |
|---|---|
| Description | Toxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, accidental (unintentional) |
| 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 T53.91 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 T53.91 to fully describe the condition. T53.91 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 T53.91 to fully describe the condition. T53.91 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T53.91, but a patient may have both at the same time. When documentation supports it, T53.91 and the excluded code may both be reported.
What codes fall under T53.91? (3)
- T53.91XAToxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, accidental (unintentional), initial encounter
- T53.91XDToxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, accidental (unintentional), subsequent encounter
- T53.91XSToxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, accidental (unintentional), sequela
How long has T53.91 existed?
T53.91 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.
What other codes are in the T53.9 family? (3)
- T53.92Toxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, intentional self-harmnot billable
- T53.93Toxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, assaultnot billable
- T53.94Toxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, undeterminednot billable