2026 ICD-10-CM Diagnosis Code T65.892AToxic effect of other specified substances, intentional self-harm, initial encounter
T65.892A is a billable ICD-10-CM diagnosis code for toxic effect of other specified substances, intentional self-harm, 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, self-harm; External cause codes: poisoning by non-drug; and Suicidal ideation/attempt/intentional self-harm.
Code Identity
Code Classification
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
Acrylamide
a colorless, odorless, highly water soluble vinyl monomer formed from the hydration of acrylonitrile. it is primarily used in research laboratories for electrophoresis, chromatography, and electron microscopy and in the sewage and wastewater treatment industries.Acrylamides
colorless, odorless crystals that are used extensively in research laboratories for the preparation of polyacrylamide gels for electrophoresis and in organic synthesis, and polymerization. some of its polymers are used in sewage and wastewater treatment, permanent press fabrics, and as soil conditioning agents.Acrylonitrile
a highly poisonous compound used widely in the manufacture of plastics, adhesives and synthetic rubber.Epoxide Hydrolases
enzymes that catalyze reversibly the formation of an epoxide or arene oxide from a glycol or aromatic diol, respectively.Styrene
a colorless, toxic liquid with a strong aromatic odor. it is used to make rubbers, polymers and copolymers, and polystyrene plastics.Styrenes
derivatives and polymers of styrene. they are used in the manufacturing of synthetic rubber, plastics, and resins. some of the polymers form the skeletal structures for ion exchange resin beads.
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 |
|---|---|---|---|---|---|---|
| Acrylamide | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Acrylonitrile | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Adhesive NEC | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Antiaris toxicaria | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Auramine | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Auramine::dye | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Auramine::fungicide | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Benzidine | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Bergamot oil | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Cleaner, cleansing agent, type not specified | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Cleaner, cleansing agent, type not specified::of paint or varnish | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Cleaner, cleansing agent, type not specified::specified type NEC | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Cordite | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Cordite::vapor | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Diethylhexylphthalate | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Disinfectant | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Disinfectant::alkaline | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Disinfectant::aromatic | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Disinfectant::intestinal | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Epoxy resin | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Fertilizers NEC | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Fertilizers NEC::with herbicide mixture | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Furniture polish | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Glutaraldehyde (nonmedicinal) | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Glutaraldehyde (nonmedicinal)::medicinal | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Grease | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Guano | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Ink | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Isophorone | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Liquor creosolis compositus | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Monosodium glutamate | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Myristicin | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Naphthol | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Naphthylamine | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Nitrocellulose | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Nitrocellulose::lacquer | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Nitronaphthalene | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Oil (of) | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Oil (of)::bitter almond | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Oil (of)::cloves | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Oil (of)::colors | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Oil (of)::fumes | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Oil (of)::lubricating | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Oil (of)::Niobe | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Oil (of)::vitriol (liquid) | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Oil (of)::vitriol (liquid)::fumes | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Oil (of)::wintergreen (bitter) NEC | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| PBB (polybrominated biphenyls) | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| PCB | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Permanganate | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Phosphate | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Phosphate::laxative | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Phosphate::organic | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Phosphate::solvent | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Phosphate::tricresyl | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Phthalates | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Phthalic anhydride | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Pine oil (disinfectant) | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Pitch | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Plant | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Plant::food or fertilizer NEC | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Plant::food or fertilizer NEC::containing herbicide | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Plant::noxious, used as food | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Plant::noxious, used as food::berries | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Plant::noxious, used as food::seeds | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Plant::noxious, used as food::specified type NEC | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Polish (car) (floor) (furniture) (metal) (porcelain) (silver) | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Polish (car) (floor) (furniture) (metal) (porcelain) (silver)::abrasive | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Polish (car) (floor) (furniture) (metal) (porcelain) (silver)::porcelain | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Polychlorinated biphenyl | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Preservative (nonmedicinal) | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Preservative (nonmedicinal)::medicinal | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Preservative (nonmedicinal)::wood | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Prussian blue | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Prussian blue::commercial | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Prussian blue::therapeutic | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Psoralene (nonmedicinal) | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Reducing agent, industrial NEC | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Resorcin, resorcinol (nonmedicinal) | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Resorcin, resorcinol (nonmedicinal)::medicinal | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Scouring powder | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Silicone NEC | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Silicone NEC::medicinal | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Soldering fluid | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Styrene | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Tartaric acid | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Thioglycolic acid | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Toilet deodorizer | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Toluidine | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Toluidine::vapor | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Tricresyl phosphate | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Tricresyl phosphate::solvent | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Triorthocresyl phosphate | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Triphenylphosphate | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Vinyl | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Vinyl::acetate | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Vinyl::bital | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Vinyl::bromide | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Vinyl::chloride | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Vinyl::ether | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Vinylidene chloride | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Whitewash | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
| Window cleaning fluid | T65.891 | T65.892 | T65.893 | T65.894 | – | – |
Patient EducationClinical
Poisoning
A poison is any substance that is harmful to your body. You might swallow it, inhale it, inject it, or absorb it through your skin. Any substance can be poisonous if too much is taken. Poisons can include:
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert T65.892A to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code History & ChangesHistory
Replaced This code was replaced in the FY 2026 code set by:
- T65.842A - Toxic effect of xylazine, self-harm, initial encounter
- T65.842A - Toxic effect of xylazine, self-harm, initial encounter
Questions About T65.892AOverview
Is T65.892A a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report toxic effect of other specified substances, intentional self-harm, initial encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character A in T65.892A mean?
The final character A marks the initial encounter: use it while the patient is receiving active treatment for toxic effect of other specified substances, intentional self-harm, such as an emergency visit or first evaluation.
What MS-DRG does T65.892A group to?
When toxic effect of other specified substances, intentional self-harm, 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 T65.892A?
Under the General Equivalence Mappings, toxic effect of other specified substances, intentional self-harm, initial encounter converts to ICD-9-CM 989.89 (tox eff nonmed subst NEC) and E950.9 (poison-solid/liquid 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.
