ICD-10-CM > V00-Y99 > Y21-Y33 > Y21 Y21 Drowning and submersion, undetermined intent Non-Billable/Non-Specific Codes Y21.0Drowning and submersion while in bathtub, undetermined intentY21.0XXA..., initial encounterY21.0XXD..., subsequent encounterY21.0XXS..., sequelaY21.1Drowning and submersion after fall into bathtub, undetermined intentY21.1XXA..., initial encounterY21.1XXD..., subsequent encounterY21.1XXS..., sequelaY21.2Drowning and submersion while in swimming pool, undetermined intentY21.2XXA..., initial encounterY21.2XXD..., subsequent encounterY21.2XXS..., sequelaY21.3Drowning and submersion after fall into swimming pool, undetermined intentY21.3XXA..., initial encounterY21.3XXD..., subsequent encounterY21.3XXS..., sequelaY21.4Drowning and submersion in natural water, undetermined intentY21.4XXA..., initial encounterY21.4XXD..., subsequent encounterY21.4XXS..., sequelaY21.8Other drowning and submersion, undetermined intentY21.8XXA..., initial encounterY21.8XXD..., subsequent encounterY21.8XXS..., sequelaY21.9Unspecified drowning and submersion, undetermined intentY21.9XXA..., initial encounterY21.9XXD..., subsequent encounterY21.9XXS..., sequela