• Window: treatment dates 1 January to 31 December 2025.
• Grain: one row per sampled ER visit, keyed by case_number.
• Cadence: a fixed snapshot. CPSC publishes each year as a new file the following spring.

• case_number: CPSC case number.
• treatment_date: date of the ER visit.
• narrative: the coder's free-text account, in CPSC's capitals and abbreviations (YOM is year-old male, DX is diagnosis).
• emoji_1 to emoji_3, emoji_1_p to emoji_3_p, emojis: the best-fitting of forty emoji and Clef's 0 to 1 score for each. A slot is filled only at 0.5 or more.
• mechanism, activity, holiday: Clef's tags for how it happened, what the patient was doing, and any holiday the narrative names.
• weird_score, stunt_score: Clef's 0 to 1 scores that the injury is unusual or absurd, and that a stunt, dare or prank caused it.
• age_years, age_months: patient age. Under-twos are 0 years with their age in months.
• sex, race, race_other, hispanic: patient demographics as CPSC codes them.
• body_part, diagnosis, diagnosis_other, body_part_2, diagnosis_2, diagnosis_2_other: the main and second injury.
• disposition: released, admitted, transferred, held, left or died.
• location: where it happened, such as home, street or sports venue.
• fire_involvement: whether a fire was involved and whether the fire department attended.
• product_1 to product_3, product_1_code to product_3_code: the consumer products involved, in CPSC's category wording and codes.
• alcohol_involved, drug_involved: CPSC's flags.
• stratum, psu, weight: the NEISS sample design. weight is the number of national ER visits each row stands for.
• tag_model: the Clef checkpoint that tagged the row.

Empty cells mean the field was not recorded: no second body part, no second product, an unknown age. Emoji slots are empty when fewer than three emoji scored 0.5. Every visit has Clef tags. holiday is loose: other_holiday also catches vacations, and a few Thanksgiving and New Year tags rest on weak cues.

• Finding strange, funny or alarming injury stories by product, holiday or mechanism.
• Estimating national injury counts for a product with the sample weights.
• Training and testing text classifiers on short clinical narratives.

The National Electronic Injury Surveillance System, run by the US Consumer Product Safety Commission. A US government work in the public domain. The Clef tags were added by Mostly Right.