2027 ICD-10-CM Diagnosis Code T53Toxic effect of halogen derivatives of aliphatic and aromatic hydrocarbons

ICD-10-CM Codes›S00–T88›T51-T65›T53

ICD-10-CM T53
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

T53 is a non-billable ICD-10-CM category code for toxic effect of halogen derivatives of aliphatic and aromatic hydrocarbons, so it cannot be submitted on claims. Use a more specific code from this category instead, such as T53.0X1A, T53.0X1D, T53.0X1S, and T53.0X2A.

Code Identity

ICD-10-CM Code
T53
Billable Status
No — Non-Billable Category
Code Describes
Toxic effect of halogen derivatives of aliphatic and aromatic hydrocarbons
Short Description
Toxic effect of halogen derivatives of aromat hydrocrb
Chapter
T51-T65
Toxic effects of substances chiefly nonmedicinal as to source

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionT51-T65Toxic effects of substances chiefly nonmedicinal as to source
CategoryT53Toxic effect of halogen derivatives of aliphatic and aromatic hydrocarbons
This CodeT53Toxic effect of halogen derivatives of aliphatic and aromatic hydrocarbons

Specific Coding for Toxic effect of halogen derivatives of aromat hydrocrbOverview

Non-specific codes like T53 require more characters. Use one of these billable codes instead:

  • T53.0 for Toxic effects of carbon tetrachloride

  • T53.0X for Toxic effects of carbon tetrachloride

  • T53.1 for Toxic effects of chloroform

  • T53.1X for Toxic effects of chloroform

  • T53.2 for Toxic effects of trichloroethylene

  • T53.2X for Toxic effects of trichloroethylene

  • T53.3 for Toxic effects of tetrachloroethylene

  • T53.3X for Toxic effects of tetrachloroethylene

  • T53.4 for Toxic effects of dichloromethane

  • T53.4X for Toxic effects of dichloromethane

  • T53.5 for Toxic effects of chlorofluorocarbons

  • T53.5X for Toxic effects of chlorofluorocarbons

  • T53.6 for Toxic effects of other halogen derivatives of aliphatic hydrocarbons

  • T53.6X for Toxic effects of other halogen derivatives of aliphatic hydrocarbons

  • T53.7 for Toxic effects of other halogen derivatives of aromatic hydrocarbons

  • T53.7X for Toxic effects of other halogen derivatives of aromatic hydrocarbons

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

  • T53.91 for Toxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, accidental (unintentional)

  • T53.92 for Toxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, intentional self-harm

  • T53.93 for Toxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, assault

  • T53.94 for Toxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, undetermined

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Toxic effect of halogen derivatives of aliphatic and aromatic hydrocarbons (T53). Use the following options for the applicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027, published by CMS and the National Center for Health Statistics.

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to T53: its own notes plus those printed at block T51-T65 and Chapter 19. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Block T51-T65 Toxic effects of substances chiefly nonmedicinal as to source applies to 1,680 codes
  • contact with and (suspected) exposure to toxic substances (Z77.-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Block T51-T65 Toxic effects of substances chiefly nonmedicinal as to source applies to 1,680 codes
  • 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.-)
From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • code to identify any retained foreign body, if applicable (Z18.-)

Notes

General instructions on how these codes are used.

From Block T51-T65 Toxic effects of substances chiefly nonmedicinal as to source applies to 1,680 codes
  • When no intent is indicated code to accidental. Undetermined intent is only for use when there is specific documentation in the record that the intent of the toxic effect cannot be determined.
From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

7th Character

Every code in the category takes a 7th character from the listed values, with the placeholder X filling any empty positions before it.

  • The appropriate 7th character is to be added to each code from category T53
Values for category T53 Encounter: Initial, Subsequent, Sequela
  • Ainitial encounter
  • Dsubsequent encounter
  • Ssequela

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name T53, its category, or a range that includes it.

Excludes1 2

These codes carry an Excludes1 note naming T53: they are not reported together with it, unless the two conditions are unrelated.

  • T52 Toxic effect of organic solvents
    halogen derivatives of aliphatic and aromatic hydrocarbons (T53.-)
  • T60.1 Toxic effect of halogenated insecticides
    chlorinated hydrocarbon (T53.-)

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About T53Overview

Is T53 a billable code?

No. This is a category header that groups the codes for toxic effect of halogen derivatives of aliphatic and aromatic hydrocarbons, and headers cannot be submitted on claims. Claims for toxic effect of halogen derivatives of aliphatic and aromatic hydrocarbons need a more specific code from this category, such as T53.0X1A, T53.0X1D, and T53.0X1S.

Can T53 be reported with a code from Z77?

Not as a rule. The Excludes1 note at block T51-T65, which applies to T53, lists "contact with and (suspected) exposure to toxic substances (Z77.-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).