Y28.1⚠ Requires 7th Character

Contact with knife, undetermined intent

⚠ 7th Character Required

The appropriate 7th character is to be added to each code from category Y28

This code is not valid for billing without a 7th character. Append one of the following to Y28.1:

Ainitial encounterY28.1XXADsubsequent encounterY28.1XXDSsequelaY28.1XXS

Sub-codes of Y28.1(3)

Y28.1 is a non-billable header. Select a sub-code to bill.

Y28.1AContact with knife, undetermined intent, initial encounter✓ BillableY28.1DContact with knife, undetermined intent, subsequent encounte…✓ BillableY28.1SContact with knife, undetermined intent, sequela✓ Billable

Also Indexed As(ICD-10-CM Alphabetic Index)

These clinical terms, synonyms, and manifestations all map to Y28.1 in the official ICD-10-CM Alphabetic Index.

Contact (accidental), with, knife, stated as undetermined whether accidental or intentionalUndetermined intent (contact) (exposure), sharp object, knife

Code Hierarchy

┌20External causes of morbidity (V00-Y99)├Y21-Y33Event of undetermined intent (Y21-Y33)├Y28Contact with sharp object, undetermined intent
└Y28.1Contact with knife, undetermined intent

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