Event of undetermined intent (Y21-Y33)

Browse all the diagnosis codes used for event of undetermined intent (y21-y33). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.

Instructional Notations

Inclusion Terms

These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.

  • Undetermined intent is only for use when there is specific documentation in the record that the intent of the injury cannot be determined. If no such documentation is present, code to accidental (unintentional)
  • External causes of morbidity and mortality (V01–Y99)

    • Event of undetermined intent (Y21-Y33)

        • Drowning and submersion, undetermined intent (Y21)

        • Y21 Drowning and submersion, undetermined intent
        • Y21.0 Drowning and submersion while in bathtub, undetermined intent
        • Y21.0XXA Drowning and submersion while in bathtub, undetermined intent, initial encounter
        • Y21.0XXD Drowning and submersion while in bathtub, undetermined intent, subsequent encounter
        • Y21.0XXS Drowning and submersion while in bathtub, undetermined intent, sequela
        • Y21.1 Drowning and submersion after fall into bathtub, undetermined intent
        • Y21.1XXA Drowning and submersion after fall into bathtub, undetermined intent, initial encounter
        • Y21.1XXD Drowning and submersion after fall into bathtub, undetermined intent, subsequent encounter
        • Y21.1XXS Drowning and submersion after fall into bathtub, undetermined intent, sequela
        • Y21.2 Drowning and submersion while in swimming pool, undetermined intent
        • Y21.2XXA Drowning and submersion while in swimming pool, undetermined intent, initial encounter
        • Y21.2XXD Drowning and submersion while in swimming pool, undetermined intent, subsequent encounter
        • Y21.2XXS Drowning and submersion while in swimming pool, undetermined intent, sequela
        • Y21.3 Drowning and submersion after fall into swimming pool, undetermined intent
        • Y21.3XXA Drowning and submersion after fall into swimming pool, undetermined intent, initial encounter
        • Y21.3XXD Drowning and submersion after fall into swimming pool, undetermined intent, subsequent encounter
        • Y21.3XXS Drowning and submersion after fall into swimming pool, undetermined intent, sequela
        • Y21.4 Drowning and submersion in natural water, undetermined intent
        • Y21.4XXA Drowning and submersion in natural water, undetermined intent, initial encounter
        • Y21.4XXD Drowning and submersion in natural water, undetermined intent, subsequent encounter
        • Y21.4XXS Drowning and submersion in natural water, undetermined intent, sequela
        • Y21.8 Other drowning and submersion, undetermined intent
        • Y21.8XXA Other drowning and submersion, undetermined intent, initial encounter
        • Y21.8XXD Other drowning and submersion, undetermined intent, subsequent encounter
        • Y21.8XXS Other drowning and submersion, undetermined intent, sequela
        • Y21.9 Unspecified drowning and submersion, undetermined intent
        • Y21.9XXA Unspecified drowning and submersion, undetermined intent, initial encounter
        • Y21.9XXD Unspecified drowning and submersion, undetermined intent, subsequent encounter
        • Y21.9XXS Unspecified drowning and submersion, undetermined intent, sequela
        • Rifle, shotgun and larger firearm discharge, undetermined intent (Y23)

        • Y23 Rifle, shotgun and larger firearm discharge, undetermined intent
        • Y23.0 Shotgun discharge, undetermined intent
        • Y23.0XXA Shotgun discharge, undetermined intent, initial encounter
        • Y23.0XXD Shotgun discharge, undetermined intent, subsequent encounter
        • Y23.0XXS Shotgun discharge, undetermined intent, sequela
        • Y23.1 Hunting rifle discharge, undetermined intent
        • Y23.1XXA Hunting rifle discharge, undetermined intent, initial encounter
        • Y23.1XXD Hunting rifle discharge, undetermined intent, subsequent encounter
        • Y23.1XXS Hunting rifle discharge, undetermined intent, sequela
        • Y23.2 Military firearm discharge, undetermined intent
        • Y23.2XXA Military firearm discharge, undetermined intent, initial encounter
        • Y23.2XXD Military firearm discharge, undetermined intent, subsequent encounter
        • Y23.2XXS Military firearm discharge, undetermined intent, sequela
        • Y23.3 Machine gun discharge, undetermined intent
        • Y23.3XXA Machine gun discharge, undetermined intent, initial encounter
        • Y23.3XXD Machine gun discharge, undetermined intent, subsequent encounter
        • Y23.3XXS Machine gun discharge, undetermined intent, sequela
        • Y23.8 Other larger firearm discharge, undetermined intent
        • Y23.8XXA Other larger firearm discharge, undetermined intent, initial encounter
        • Y23.8XXD Other larger firearm discharge, undetermined intent, subsequent encounter
        • Y23.8XXS Other larger firearm discharge, undetermined intent, sequela
        • Y23.9 Unspecified larger firearm discharge, undetermined intent
        • Y23.9XXA Unspecified larger firearm discharge, undetermined intent, initial encounter
        • Y23.9XXD Unspecified larger firearm discharge, undetermined intent, subsequent encounter
        • Y23.9XXS Unspecified larger firearm discharge, undetermined intent, sequela
        • Other and unspecified firearm discharge, undetermined intent (Y24)

        • Y24 Other and unspecified firearm discharge, undetermined intent
        • Y24.0 Airgun discharge, undetermined intent
        • Y24.0XXA Airgun discharge, undetermined intent, initial encounter
        • Y24.0XXD Airgun discharge, undetermined intent, subsequent encounter
        • Y24.0XXS Airgun discharge, undetermined intent, sequela
        • Y24.8 Other firearm discharge, undetermined intent
        • Y24.8XXA Other firearm discharge, undetermined intent, initial encounter
        • Y24.8XXD Other firearm discharge, undetermined intent, subsequent encounter
        • Y24.8XXS Other firearm discharge, undetermined intent, sequela
        • Y24.9 Unspecified firearm discharge, undetermined intent
        • Y24.9XXA Unspecified firearm discharge, undetermined intent, initial encounter
        • Y24.9XXD Unspecified firearm discharge, undetermined intent, subsequent encounter
        • Y24.9XXS Unspecified firearm discharge, undetermined intent, sequela
        • Contact with steam, hot vapors and hot objects, undetermined intent (Y27)

        • Y27 Contact with steam, hot vapors and hot objects, undetermined intent
        • Y27.0 Contact with steam and hot vapors, undetermined intent
        • Y27.0XXA Contact with steam and hot vapors, undetermined intent, initial encounter
        • Y27.0XXD Contact with steam and hot vapors, undetermined intent, subsequent encounter
        • Y27.0XXS Contact with steam and hot vapors, undetermined intent, sequela
        • Y27.1 Contact with hot tap water, undetermined intent
        • Y27.1XXA Contact with hot tap water, undetermined intent, initial encounter
        • Y27.1XXD Contact with hot tap water, undetermined intent, subsequent encounter
        • Y27.1XXS Contact with hot tap water, undetermined intent, sequela
        • Y27.2 Contact with hot fluids, undetermined intent
        • Y27.2XXA Contact with hot fluids, undetermined intent, initial encounter
        • Y27.2XXD Contact with hot fluids, undetermined intent, subsequent encounter
        • Y27.2XXS Contact with hot fluids, undetermined intent, sequela
        • Y27.3 Contact with hot household appliance, undetermined intent
        • Y27.3XXA Contact with hot household appliance, undetermined intent, initial encounter
        • Y27.3XXD Contact with hot household appliance, undetermined intent, subsequent encounter
        • Y27.3XXS Contact with hot household appliance, undetermined intent, sequela
        • Y27.8 Contact with other hot objects, undetermined intent
        • Y27.8XXA Contact with other hot objects, undetermined intent, initial encounter
        • Y27.8XXD Contact with other hot objects, undetermined intent, subsequent encounter
        • Y27.8XXS Contact with other hot objects, undetermined intent, sequela
        • Y27.9 Contact with unspecified hot objects, undetermined intent
        • Y27.9XXA Contact with unspecified hot objects, undetermined intent, initial encounter
        • Y27.9XXD Contact with unspecified hot objects, undetermined intent, subsequent encounter
        • Y27.9XXS Contact with unspecified hot objects, undetermined intent, sequela
        • Contact with sharp object, undetermined intent (Y28)

        • Y28 Contact with sharp object, undetermined intent
        • Y28.0 Contact with sharp glass, undetermined intent
        • Y28.0XXA Contact with sharp glass, undetermined intent, initial encounter
        • Y28.0XXD Contact with sharp glass, undetermined intent, subsequent encounter
        • Y28.0XXS Contact with sharp glass, undetermined intent, sequela
        • Y28.1 Contact with knife, undetermined intent
        • Y28.1XXA Contact with knife, undetermined intent, initial encounter
        • Y28.1XXD Contact with knife, undetermined intent, subsequent encounter
        • Y28.1XXS Contact with knife, undetermined intent, sequela
        • Y28.2 Contact with sword or dagger, undetermined intent
        • Y28.2XXA Contact with sword or dagger, undetermined intent, initial encounter
        • Y28.2XXD Contact with sword or dagger, undetermined intent, subsequent encounter
        • Y28.2XXS Contact with sword or dagger, undetermined intent, sequela
        • Y28.8 Contact with other sharp object, undetermined intent
        • Y28.8XXA Contact with other sharp object, undetermined intent, initial encounter
        • Y28.8XXD Contact with other sharp object, undetermined intent, subsequent encounter
        • Y28.8XXS Contact with other sharp object, undetermined intent, sequela
        • Y28.9 Contact with unspecified sharp object, undetermined intent
        • Y28.9XXA Contact with unspecified sharp object, undetermined intent, initial encounter
        • Y28.9XXD Contact with unspecified sharp object, undetermined intent, subsequent encounter
        • Y28.9XXS Contact with unspecified sharp object, undetermined intent, sequela