2026 ICD-10-CM Diagnosis Code T65.6X1AToxic effect of paints and dyes, not elsewhere classified, accidental (unintentional), initial encounter
T65.6X1A is a billable ICD-10-CM diagnosis code for toxic effect of paints and dyes, not elsewhere classified, 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 2026 (October 1, 2025 through September 30, 2026) 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 anticlimbing paint
- Accidental exposure to antifouling paint
- Accidental exposure to antigraffiti paint
- Accidental exposure to paint
- Accidental exposure to solid paint
- Accidental exposure to special finish paint
- Accidental poisoning by lacquers
- Accidental poisoning by non-lead paints
- Accidental poisoning by oil colors
- Acute phototoxic reaction
- Aerosol paint causing toxic effect
- Anticlimbing paint causing toxic effect
- Antifouling paint causing toxic effect
- Antigraffiti paint causing toxic effect
- Azo-dye-induced angioedema-urticaria
- Blacking causing toxic effect
- Liquid paint causing toxic effect
- Paint causing toxic effect
- Phototoxic reaction to dye
- Phototoxic reaction to topical chemical
- Shoe care product causing toxic effect
- Shoe dye causing toxic effect
- Solid paint causing toxic effect
- Special finish paint causing toxic effect
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Toxic effect of other and unspecified substances (T65). 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 2026, published by CMS and the National Center for Health Statistics.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Lacquer
a liquid resinous varnish solubilized in a volatile solvent which may be combined with a pigment. it forms a hard, glossy, and protective coating when applied to wood or metal.
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 |
|---|---|---|---|---|---|---|
| Acridine | T65.6X1 | T65.6X2 | T65.6X3 | T65.6X4 | – | – |
| Acridine::vapor | T65.6X1 | T65.6X2 | T65.6X3 | T65.6X4 | – | – |
| Cochineal | T65.6X1 | T65.6X2 | T65.6X3 | T65.6X4 | – | – |
| Cochineal::medicinal products | T65.6X1 | T65.6X2 | T65.6X3 | T65.6X4 | – | – |
| Dye NEC | T65.6X1 | T65.6X2 | T65.6X3 | T65.6X4 | – | – |
| Dye NEC::antiseptic | T65.6X1 | T65.6X2 | T65.6X3 | T65.6X4 | – | – |
| Dye NEC::diagnostic agents | T65.6X1 | T65.6X2 | T65.6X3 | T65.6X4 | – | – |
| Dye NEC::pharmaceutical NEC | T65.6X1 | T65.6X2 | T65.6X3 | T65.6X4 | – | – |
| Lacquer | T65.6X1 | T65.6X2 | T65.6X3 | T65.6X4 | – | – |
| Paint NEC | T65.6X1 | T65.6X2 | T65.6X3 | T65.6X4 | – | – |
| Paint NEC::cleaner | T65.6X1 | T65.6X2 | T65.6X3 | T65.6X4 | – | – |
| Paint NEC::fumes NEC | T65.6X1 | T65.6X2 | T65.6X3 | T65.6X4 | – | – |
| Paint NEC::lead (fumes) | T65.6X1 | T65.6X2 | T65.6X3 | T65.6X4 | – | – |
| Paint NEC::solvent NEC | T65.6X1 | T65.6X2 | T65.6X3 | T65.6X4 | – | – |
| Paint NEC::stripper | T65.6X1 | T65.6X2 | T65.6X3 | T65.6X4 | – | – |
| Stains | T65.6X1 | T65.6X2 | T65.6X3 | T65.6X4 | – | – |
Patient EducationClinical
Household Products
The products you use for cleaning, carpentry, auto repair, gardening, and many other household uses can contain ingredients that can harm you, your family, and the environment. These include :
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert T65.6X1A to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About T65.6X1AOverview
Is T65.6X1A a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report toxic effect of paints and dyes, not elsewhere classified, accidental (unintentional), initial encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character A in T65.6X1A mean?
The final character A marks the initial encounter: use it while the patient is receiving active treatment for toxic effect of paints and dyes, not elsewhere classified, accidental (unintentional), such as an emergency visit or first evaluation.
What MS-DRG does T65.6X1A group to?
When toxic effect of paints and dyes, not elsewhere classified, accidental (unintentional), initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 917, 918, with relative weights from 0.8571 to 1.5684 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of T65.6X1A?
Under the General Equivalence Mappings, toxic effect of paints and dyes, not elsewhere classified, accidental (unintentional), initial encounter converts to ICD-9-CM 989.89 (tox eff nonmed subst NEC) and E861.6 (acc poison-paints NEC). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
