T53.9 — Toxic effects of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons

Not billable

Is T53.9 billable?

No — T53.9 is a non-billable header code. T53.9 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 T53.9.

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
T53.92XAToxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, intentional self-harm, initial encounter
T53.92XDToxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, intentional self-harm, subsequent encounter
T53.92XSToxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, intentional self-harm, sequela
T53.93XAToxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, assault, initial encounter
T53.93XDToxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, assault, subsequent encounter
T53.93XSToxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, assault, sequela
T53.94XAToxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, undetermined, initial encounter
T53.94XDToxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, undetermined, subsequent encounter
T53.94XSToxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, undetermined, sequela

T53.9 at a glance

Code	T53.9
Description	Toxic effects of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons
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 T53.9 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 T53.9 to fully describe the condition. T53.9 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 T53.9 to fully describe the condition. T53.9 is sequenced first.

code(s):
for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70)
personal history of foreign body fully removed (Z87.821)
to identify any retained foreign body, if applicable (Z18.-)

Excludes2 — not included here — inherited from Chapter 19

The conditions below are not part of T53.9, but a patient may have both at the same time. When documentation supports it, T53.9 and the excluded code may both be reported.

birth trauma (P10-P15)
obstetric trauma (O70-O71)

What codes fall under T53.9? (4)

How long has T53.9 existed?

T53.9 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.