2027 ICD-10-CM Diagnosis Code T52.0X1AToxic effect of petroleum products, accidental (unintentional), initial encounter
T52.0X1A is a billable ICD-10-CM diagnosis code for toxic effect of petroleum products, accidental (unintentional), initial encounter. The 7th character A marks it as an initial encounter code, used while the patient is receiving active treatment. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 917 through 918. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under External cause codes: intent of injury, accidental/unintentional; External cause codes: poisoning by non-drug; and Toxic effects, initial encounter.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Accidental exposure to white spirit
- Accidental ingestion of white spirit
- Accidental poisoning by automotive lubricating oil
- Accidental poisoning by gas oil
- Accidental poisoning by gasoline
- Accidental poisoning by insecticide of kerosene compound
- Accidental poisoning by kerosene
- Accidental poisoning by paraffin wax
- Accidental poisoning by petroleum ether
- Accidental poisoning by petroleum fuels and cleaners
- Accidental poisoning by petroleum products
- Accidental poisoning by petroleum solid
- Accidental poisoning by petroleum solvent
- Automotive products causing toxic effect
- Lubricant causing toxic effect
- Toxic effect of gasoline
- Toxic effect of kerosene
- Toxic effect of paraffin wax
- Toxic effect of petroleum ether
- Toxic effect of petroleum product
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Toxic effect of organic solvents (T52). 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 T52.0X1A: its own notes plus those printed at T52, 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.
- halogen derivatives of aliphatic and aromatic hydrocarbons (T53.-)
- 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.
Use Additional Code
Add a second code, after this one, to fully describe the condition.
- code to identify any retained foreign body, if applicable (Z18.-)
Notes
General instructions on how these codes are used.
- 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.
- 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 T52
- Ainitial encounter this code
- Dsubsequent encounter
- Ssequela
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Gasoline
volative flammable fuel (liquid hydrocarbons) derived from crude petroleum by processes such as distillation reforming, polymerization, etc.Paraffin
a mixture of solid hydrocarbons obtained from petroleum. it has a wide range of uses including as a stiffening agent in ointments, as a lubricant, and as a topical anti-inflammatory. it is also commonly used as an embedding material in histology.Petroleum
naturally occurring complex liquid hydrocarbons which, after distillation, yield combustible fuels, petrochemicals, and lubricants.
Table of Drugs and ChemicalsClinical
Substances in the Table of Drugs and Chemicals that reference this code family. Always confirm in the Tabular List before coding.
| Substance | Accidental | Self-harm | Assault | Undetermined | Adverse Effect | Underdosing |
|---|---|---|---|---|---|---|
| Automobile fuel | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Benzol (benzene)::vapor | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Brasso | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Cigarette lighter fluid | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Coal (carbon monoxide from) [See Also: Carbon, monoxide, coal]::tar::naphtha (solvent) | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Crude oil | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Ethyl::formate NEC (solvent) | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Ethylidene::diethyl ether | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Fuel::automobile | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Fuel::automobile::vapor NEC | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Gas NEC::oil | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Gasoline | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Gasoline::vapor | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Kerosene, kerosine (fuel) (solvent) NEC | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Kerosene, kerosine (fuel) (solvent) NEC::insecticide | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Kerosene, kerosine (fuel) (solvent) NEC::vapor | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Lighter fluid | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Ligroin (e) (solvent) | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Lubricating oil NEC | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Mineral::oil (laxative) (medicinal)::nonmedicinal | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Mineral::spirits | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Naphtha (painters') (petroleum) | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Naphtha (painters') (petroleum)::solvent | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Naphtha (painters') (petroleum)::vapor | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Oil (of)::lubricating | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Paraffin (s) (wax) | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Paraffin (s) (wax)::liquid (medicinal)::nonmedicinal | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Pesticide (dust) (fumes) (vapor) NEC::kerosene | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Petrol | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Petrol::vapor | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Petrolatum::nonmedicinal | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Petroleum (products) NEC | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Petroleum (products) NEC::solids | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Petroleum (products) NEC::solvents | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Petroleum (products) NEC::vapor | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Solvent, industrial NEC::naphtha | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Solvent, industrial NEC::petroleum | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Spirit (s) (neutral) NEC::mineral | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Tar NEC | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Tractor fuel NEC | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Wax (paraffin) (petroleum) | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| Wax (paraffin) (petroleum)::floor | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
| White::spirit | T52.0X1 | T52.0X2 | T52.0X3 | T52.0X4 | – | – |
Convert T52.0X1A to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About T52.0X1AOverview
Is T52.0X1A a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report toxic effect of petroleum products, accidental (unintentional), initial encounter on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What does the 7th character A in T52.0X1A mean?
The final character A marks the initial encounter: use it while the patient is receiving active treatment for toxic effect of petroleum products, accidental (unintentional), such as an emergency visit or first evaluation.
What MS-DRG does T52.0X1A group to?
When toxic effect of petroleum products, accidental (unintentional), initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 918, 917, with relative weights from 0.8716 to 1.5698 depending on complications. Higher weights mean higher Medicare reimbursement.
Can T52.0X1A be reported with a code from T53?
Not as a rule. The Excludes1 note at T52, which applies to T52.0X1A, lists "halogen derivatives of aliphatic and aromatic hydrocarbons (T53.-)". 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).
What is the ICD-9 equivalent of T52.0X1A?
Under the General Equivalence Mappings, toxic effect of petroleum products, accidental (unintentional), initial encounter converts to ICD-9-CM 981 (toxic eff petroleum prod) and E862.1 (acc poisn-petroleum fuel). The mapping is approximate, so confirm the match fits the documentation.
