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  5. Assault by blunt object (Y00)

Assault by blunt object (Y00)

ICD-10 codes Y00, Y00.XXXA, Y00.XXXD, and Y00.XXXS classify injuries resulting from an assault by a blunt object. These codes are used to document and specify the timing of medical encounters related to such injuries.

This group of codes covers assaults caused by various blunt or thrown objects, such as sticks, walking sticks, hammers, clubs, bricks, canes, or stones. The ICD-10 code for assault by blunt object helps coders accurately identify if the patient is undergoing an initial treatment (Y00.XXXA), a follow-up visit for a subsequent encounter (Y00.XXXD), or treatment for residual effects or complications known as sequela (Y00.XXXS). The presence of synonyms like "assault with poker" or "assault by striking with thrown stone" assists in linking common injury descriptions to these specific codes. These details ensure precise reporting of injuries caused by blunt force trauma during assaults, supporting both clinical documentation and statistical tracking.

Instructional Notations

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • assault by strike by sports equipment Y08.0

7th Character Note

Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.

  • The appropriate 7th character is to be added to code Y00

7th Character

Indicates that a seventh character is to be assigned to codes in a subcategory.

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela