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Y21Non-billableSave

Y21 - Drowning and submersion, undetermined intent

ICD-10-CM Chapter 20: External causes of morbidity · Y21-Y33 Event of undetermined intent (Y21-Y33) · Top-level category · FY2027

Coding Guidance

Y21 is a non-billable heading. Report one of the 7 more specific codes below.

7th Character

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

  • Ainitial encounter
  • Dsubsequent encounter
  • Ssequela

Includes, Excludes and Coding Notes

Inclusion TermsFrom Y21-Y33 Event of undetermined intent (Y21-Y33)

Terms the ICD-10-CM tabular lists under this block.

  • 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)
NotesFrom Chapter V00-Y99

Instructional notes from the ICD-10-CM tabular list.

  • This chapter permits the classification of environmental events and circumstances as the cause of injury, and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used secondary to a code from another chapter of the Classification indicating the nature of the condition. Most often, the condition will be classifiable to Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88). Other conditions that may be stated to be due to external causes are classified in Chapters I to XVIII. For these conditions, codes from Chapter 20 should be used to provide additional information as to the cause of the condition.

More Specific Codes (7)

Y21.0Drowning and submersion while in bathtub, undetermined intent→Y21.1Drowning and submersion after fall into bathtub, undetermined intent→Y21.2Drowning and submersion while in swimming pool, undetermined intent→Y21.3Drowning and submersion after fall into swimming pool, undetermined intent→Y21.4Drowning and submersion in natural water, undetermined intent→Y21.8Other drowning and submersion, undetermined intent→Y21.9Unspecified drowning and submersion, undetermined intent→