Unspecified open wound of unspecified breast

• birth trauma (P10-P15)
• obstetric trauma (O70-O71)

code to identify any retained foreign body, if applicable (Z18.-)

• Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
• The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

• injuries of breast
• injuries of chest (wall)
• injuries of interscapular area

• burns and corrosions (T20-T32)
• effects of foreign body in bronchus (T17.5)
• effects of foreign body in esophagus (T18.1)
• effects of foreign body in lung (T17.8)
• effects of foreign body in trachea (T17.4)
• frostbite (T33-T34)
• injuries of axilla
• injuries of clavicle
• injuries of scapular region
• injuries of shoulder
• insect bite or sting, venomous (T63.4)

traumatic amputation (partial) of thorax (S28.1)

• any associated injury, such as:
• injury of heart (S26.-)
• injury of intrathoracic organs (S27.-)
• rib fracture (S22.3-, S22.4-)
• spinal cord injury (S24.0-, S24.1-)
• traumatic hemopneumothorax (S27.3)
• traumatic hemothorax (S27.1)
• traumatic pneumothorax (S27.0)
• wound infection

The appropriate 7th character is to be added to each code from category S21