T52

Toxic effect of organic solvents

FY2027Chapter 19: Injury, poisoning and certain other consequences of external causes/T51–T65 Toxic effects of substances chiefly nonmedicinal as to source

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

7th character required
Use additional code
Excludes1
Excludes2

T52 is a non-billable ICD-10-CM code category for toxic effect of organic solvents. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are T52.0 Toxic effects of petroleum products, T52.1 Toxic effects of benzene, T52.2 Toxic effects of homologues of benzene, T52.3 Toxic effects of glycols and 3 more. Its coding notes include a Use additional code instruction, 2 Excludes1 entries and 2 Excludes2 entries.

7th characters

Every code below needs one of these.

The appropriate 7th character is to be added to each code from category T52

Ainitial encounter
Dsubsequent encounter
Ssequela

Guidelines tips

From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.

The 7th character depends on whether the patient is in active treatment, not on who sees the patient. An aftercare Z code is not used for injury aftercare.

Guidelines I.C.19.aInjuries: application of 7th charactersRead the official text

T36-T65 codes already include the substance and the intent, so no additional external cause code is required. Do not code directly from the Table of Drugs and Chemicals.

Guidelines I.C.19.ePoisoning, adverse effects and the Table of DrugsRead the official text

Use additional code

Add the listed code as a secondary code, if known.

Also from chapter/block level (5 notes)

Inherited from T51–T65 Toxic effects of substances chiefly nonmedicinal as to source

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.-)

Inherited from Chapter 19 Injury, poisoning and certain other consequences of external causes

code to identify any retained foreign body, if applicable (Z18.-)

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code

halogen derivatives of aliphatic and aromatic hydrocarbons (T53.-)

Also from chapter/block level (1 note)

Inherited from T51–T65 Toxic effects of substances chiefly nonmedicinal as to source

contact with and (suspected) exposure to toxic substances (Z77.-)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (2 notes)

Inherited from Chapter 19 Injury, poisoning and certain other consequences of external causes

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

Notes

Also from chapter/block level (3 notes)

Inherited from T51–T65 Toxic effects of substances chiefly nonmedicinal as to source

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.

Inherited from Chapter 19 Injury, poisoning and certain other consequences of external causes

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.

More specific codes under T52 7