Y21-Y33
Event of undetermined intent
Block coding notes
Excludes 1 never together · Excludes 2 may co-exist
Synonyms
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)
Codes in this block
145 codes
Billableusable codeNon-billableheader / grouping codeRisk-adjusting
- Y21Drowning and submersion, undetermined intentNon-billable
- Y21.0Drowning and submersion while in bathtub, undetermined intentNon-billable
- Y21.0XXADrowning and submersion while in bathtub, undetermined intent, initial encounterBillable
- Y21.0XXDDrowning and submersion while in bathtub, undetermined intent, subsequent encounterBillable
- Y21.0XXSDrowning and submersion while in bathtub, undetermined intent, sequelaBillable
- Y21.1Drowning and submersion after fall into bathtub, undetermined intentNon-billable
- Y21.1XXADrowning and submersion after fall into bathtub, undetermined intent, initial encounterBillable
- Y21.1XXDDrowning and submersion after fall into bathtub, undetermined intent, subsequent encounterBillable
- Y21.1XXSDrowning and submersion after fall into bathtub, undetermined intent, sequelaBillable
- Y21.2Drowning and submersion while in swimming pool, undetermined intentNon-billable
- Y21.2XXADrowning and submersion while in swimming pool, undetermined intent, initial encounterBillable
- Y21.2XXDDrowning and submersion while in swimming pool, undetermined intent, subsequent encounterBillable
- Y21.2XXSDrowning and submersion while in swimming pool, undetermined intent, sequelaBillable
- Y21.3Drowning and submersion after fall into swimming pool, undetermined intentNon-billable
- Y21.3XXADrowning and submersion after fall into swimming pool, undetermined intent, initial encounterBillable
- Y21.3XXDDrowning and submersion after fall into swimming pool, undetermined intent, subsequent encounterBillable
- Y21.3XXSDrowning and submersion after fall into swimming pool, undetermined intent, sequelaBillable
- Y21.4Drowning and submersion in natural water, undetermined intentNon-billable
- Y21.4XXADrowning and submersion in natural water, undetermined intent, initial encounterBillable
- Y21.4XXDDrowning and submersion in natural water, undetermined intent, subsequent encounterBillable
- Y21.4XXSDrowning and submersion in natural water, undetermined intent, sequelaBillable
- Y21.8Other drowning and submersion, undetermined intentNon-billable
- Y21.8XXAOther drowning and submersion, undetermined intent, initial encounterBillable
- Y21.8XXDOther drowning and submersion, undetermined intent, subsequent encounterBillable
- Y21.8XXSOther drowning and submersion, undetermined intent, sequelaBillable
- Y21.9Unspecified drowning and submersion, undetermined intentNon-billable
- Y21.9XXAUnspecified drowning and submersion, undetermined intent, initial encounterBillable
- Y21.9XXDUnspecified drowning and submersion, undetermined intent, subsequent encounterBillable
- Y21.9XXSUnspecified drowning and submersion, undetermined intent, sequelaBillable
- Y22Handgun discharge, undetermined intentNon-billable
- Y22XXXAHandgun discharge, undetermined intent, initial encounterBillable
- Y22XXXDHandgun discharge, undetermined intent, subsequent encounterBillable
- Y22XXXSHandgun discharge, undetermined intent, sequelaBillable
- Y23Rifle, shotgun and larger firearm discharge, undetermined intentNon-billable
- Y23.0Shotgun discharge, undetermined intentNon-billable
- Y23.0XXAShotgun discharge, undetermined intent, initial encounterBillable
- Y23.0XXDShotgun discharge, undetermined intent, subsequent encounterBillable
- Y23.0XXSShotgun discharge, undetermined intent, sequelaBillable
- Y23.1Hunting rifle discharge, undetermined intentNon-billable
- Y23.1XXAHunting rifle discharge, undetermined intent, initial encounterBillable
- Y23.1XXDHunting rifle discharge, undetermined intent, subsequent encounterBillable
- Y23.1XXSHunting rifle discharge, undetermined intent, sequelaBillable
- Y23.2Military firearm discharge, undetermined intentNon-billable
- Y23.2XXAMilitary firearm discharge, undetermined intent, initial encounterBillable
- Y23.2XXDMilitary firearm discharge, undetermined intent, subsequent encounterBillable
- Y23.2XXSMilitary firearm discharge, undetermined intent, sequelaBillable
- Y23.3Machine gun discharge, undetermined intentNon-billable
- Y23.3XXAMachine gun discharge, undetermined intent, initial encounterBillable
- Y23.3XXDMachine gun discharge, undetermined intent, subsequent encounterBillable
- Y23.3XXSMachine gun discharge, undetermined intent, sequelaBillable
- Y23.8Other larger firearm discharge, undetermined intentNon-billable
- Y23.8XXAOther larger firearm discharge, undetermined intent, initial encounterBillable
- Y23.8XXDOther larger firearm discharge, undetermined intent, subsequent encounterBillable
- Y23.8XXSOther larger firearm discharge, undetermined intent, sequelaBillable
- Y23.9Unspecified larger firearm discharge, undetermined intentNon-billable
- Y23.9XXAUnspecified larger firearm discharge, undetermined intent, initial encounterBillable
- Y23.9XXDUnspecified larger firearm discharge, undetermined intent, subsequent encounterBillable
- Y23.9XXSUnspecified larger firearm discharge, undetermined intent, sequelaBillable
- Y24Other and unspecified firearm discharge, undetermined intentNon-billable
- Y24.0Airgun discharge, undetermined intentNon-billable
- Y24.0XXAAirgun discharge, undetermined intent, initial encounterBillable
- Y24.0XXDAirgun discharge, undetermined intent, subsequent encounterBillable
- Y24.0XXSAirgun discharge, undetermined intent, sequelaBillable
- Y24.8Other firearm discharge, undetermined intentNon-billable
- Y24.8XXAOther firearm discharge, undetermined intent, initial encounterBillable
- Y24.8XXDOther firearm discharge, undetermined intent, subsequent encounterBillable
- Y24.8XXSOther firearm discharge, undetermined intent, sequelaBillable
- Y24.9Unspecified firearm discharge, undetermined intentNon-billable
- Y24.9XXAUnspecified firearm discharge, undetermined intent, initial encounterBillable
- Y24.9XXDUnspecified firearm discharge, undetermined intent, subsequent encounterBillable
- Y24.9XXSUnspecified firearm discharge, undetermined intent, sequelaBillable
- Y25Contact with explosive material, undetermined intentNon-billable
- Y25XXXAContact with explosive material, undetermined intent, initial encounterBillable
- Y25XXXDContact with explosive material, undetermined intent, subsequent encounterBillable
- Y25XXXSContact with explosive material, undetermined intent, sequelaBillable
- Y26Exposure to smoke, fire and flames, undetermined intentNon-billable
- Y26XXXAExposure to smoke, fire and flames, undetermined intent, initial encounterBillable
- Y26XXXDExposure to smoke, fire and flames, undetermined intent, subsequent encounterBillable
- Y26XXXSExposure to smoke, fire and flames, undetermined intent, sequelaBillable
- Y27Contact with steam, hot vapors and hot objects, undetermined intentNon-billable
- Y27.0Contact with steam and hot vapors, undetermined intentNon-billable
- Y27.0XXAContact with steam and hot vapors, undetermined intent, initial encounterBillable
- Y27.0XXDContact with steam and hot vapors, undetermined intent, subsequent encounterBillable
- Y27.0XXSContact with steam and hot vapors, undetermined intent, sequelaBillable
- Y27.1Contact with hot tap water, undetermined intentNon-billable
- Y27.1XXAContact with hot tap water, undetermined intent, initial encounterBillable
- Y27.1XXDContact with hot tap water, undetermined intent, subsequent encounterBillable
- Y27.1XXSContact with hot tap water, undetermined intent, sequelaBillable
- Y27.2Contact with hot fluids, undetermined intentNon-billable
- Y27.2XXAContact with hot fluids, undetermined intent, initial encounterBillable
- Y27.2XXDContact with hot fluids, undetermined intent, subsequent encounterBillable
- Y27.2XXSContact with hot fluids, undetermined intent, sequelaBillable
- Y27.3Contact with hot household appliance, undetermined intentNon-billable
- Y27.3XXAContact with hot household appliance, undetermined intent, initial encounterBillable
- Y27.3XXDContact with hot household appliance, undetermined intent, subsequent encounterBillable
- Y27.3XXSContact with hot household appliance, undetermined intent, sequelaBillable
- Y27.8Contact with other hot objects, undetermined intentNon-billable
- Y27.8XXAContact with other hot objects, undetermined intent, initial encounterBillable
- Y27.8XXDContact with other hot objects, undetermined intent, subsequent encounterBillable
- Y27.8XXSContact with other hot objects, undetermined intent, sequelaBillable
- Y27.9Contact with unspecified hot objects, undetermined intentNon-billable
- Y27.9XXAContact with unspecified hot objects, undetermined intent, initial encounterBillable
- Y27.9XXDContact with unspecified hot objects, undetermined intent, subsequent encounterBillable
- Y27.9XXSContact with unspecified hot objects, undetermined intent, sequelaBillable
- Y28Contact with sharp object, undetermined intentNon-billable
- Y28.0Contact with sharp glass, undetermined intentNon-billable
- Y28.0XXAContact with sharp glass, undetermined intent, initial encounterBillable
- Y28.0XXDContact with sharp glass, undetermined intent, subsequent encounterBillable
- Y28.0XXSContact with sharp glass, undetermined intent, sequelaBillable
- Y28.1Contact with knife, undetermined intentNon-billable
- Y28.1XXAContact with knife, undetermined intent, initial encounterBillable
- Y28.1XXDContact with knife, undetermined intent, subsequent encounterBillable
- Y28.1XXSContact with knife, undetermined intent, sequelaBillable
- Y28.2Contact with sword or dagger, undetermined intentNon-billable
- Y28.2XXAContact with sword or dagger, undetermined intent, initial encounterBillable
- Y28.2XXDContact with sword or dagger, undetermined intent, subsequent encounterBillable
- Y28.2XXSContact with sword or dagger, undetermined intent, sequelaBillable
- Y28.8Contact with other sharp object, undetermined intentNon-billable
- Y28.8XXAContact with other sharp object, undetermined intent, initial encounterBillable
- Y28.8XXDContact with other sharp object, undetermined intent, subsequent encounterBillable
- Y28.8XXSContact with other sharp object, undetermined intent, sequelaBillable
- Y28.9Contact with unspecified sharp object, undetermined intentNon-billable
- Y28.9XXAContact with unspecified sharp object, undetermined intent, initial encounterBillable
- Y28.9XXDContact with unspecified sharp object, undetermined intent, subsequent encounterBillable
- Y28.9XXSContact with unspecified sharp object, undetermined intent, sequelaBillable
- Y29Contact with blunt object, undetermined intentNon-billable
- Y29XXXAContact with blunt object, undetermined intent, initial encounterBillable
- Y29XXXDContact with blunt object, undetermined intent, subsequent encounterBillable
- Y29XXXSContact with blunt object, undetermined intent, sequelaBillable
- Y30Falling, jumping or pushed from a high place, undetermined intentNon-billable
- Y30XXXAFalling, jumping or pushed from a high place, undetermined intent, initial encounterBillable
- Y30XXXDFalling, jumping or pushed from a high place, undetermined intent, subsequent encounterBillable
- Y30XXXSFalling, jumping or pushed from a high place, undetermined intent, sequelaBillable
- Y31Falling, lying or running before or into moving object, undetermined intentNon-billable
- Y31XXXAFalling, lying or running before or into moving object, undetermined intent, initial encounterBillable
- Y31XXXDFalling, lying or running before or into moving object, undetermined intent, subsequent encounterBillable
- Y31XXXSFalling, lying or running before or into moving object, undetermined intent, sequelaBillable
- Y32Crashing of motor vehicle, undetermined intentNon-billable
- Y32XXXACrashing of motor vehicle, undetermined intent, initial encounterBillable
- Y32XXXDCrashing of motor vehicle, undetermined intent, subsequent encounterBillable
- Y32XXXSCrashing of motor vehicle, undetermined intent, sequelaBillable
- Y33Other specified events, undetermined intentNon-billable
- Y33XXXAOther specified events, undetermined intent, initial encounterBillable
- Y33XXXDOther specified events, undetermined intent, subsequent encounterBillable
- Y33XXXSOther specified events, undetermined intent, sequelaBillable
Official Guidelines for Y21-Y33
FY 2026 ›I.C.20Chapter-specific guidanceChapter 20: External Causes of Morbidity (V00-Y99)
Subsections
- I.C.20.aGeneral External Cause Coding Guidelines
- I.C.20.bPlace of Occurrence Guideline
- I.C.20.cActivity Code
- I.C.20.dPlace of Occurrence, Activity, and Status Codes Used with other
- I.C.20.eIf the Reporting Format Limits the Number of External Cause Codes
- I.C.20.fMultiple External Cause Coding Guidelines
- I.C.20.gChild and Adult Abuse Guideline
- I.C.20.hUnknown or Undetermined Intent Guideline
- I.C.20.iSequelae (Late Effects) of External Cause Guidelines
- I.C.20.jTerrorism Guidelines
- I.C.20.kExternal Cause Status