1. Y21 Drowning and submersion, undetermined intent

    The appropriate 7th character is to be added to each code from category Y21

    • A - initial encounter
    • D - subsequent encounter
    • S - sequela
    1. Y21.0 Drowning and submersion while in bathtub, undetermined intent

    2. Y21.1 Drowning and submersion after fall into bathtub, undetermined intent

    3. Y21.2 Drowning and submersion while in swimming pool, undetermined intent

    4. Y21.3 Drowning and submersion after fall into swimming pool, undetermined intent

    5. Y21.4 Drowning and submersion in natural water, undetermined intent

    6. Y21.8 Other drowning and submersion, undetermined intent

    7. Y21.9 Unspecified drowning and submersion, undetermined intent

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.