ICD-10 code for breast wound

The ICD-10-CM code for breast wound is S21.00 (Unspecified open wound of breast).

Within S21.0, choose S21.00 (Unspecified open wound of breast) only when documentation doesn't support a more specific option: laceration without foreign body of breast (S21.01), laceration with foreign body of breast (S21.02), puncture wound without foreign body of breast (S21.03), puncture wound with foreign body of breast (S21.04) and open bite of breast (S21.05).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.