Displaced fracture (avulsion) of medial epicondyle of unspecified humerus

• 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 axilla
• injuries of scapular region

• burns and corrosions (T20-T32)
• frostbite (T33-T34)
• injuries of elbow (S50-S59)
• insect bite or sting, venomous (T63.4)

traumatic amputation of shoulder and upper arm (S48.-)

periprosthetic fracture around internal prosthetic shoulder joint (M97.3)

• A fracture not indicated as displaced or nondisplaced should be coded to displaced
• A fracture not indicated as open or closed should be coded to closed

The appropriate 7th character is to be added to all codes from category S42

Fracture of distal end of humerus

• fracture of shaft of humerus (S42.3-)
• physeal fracture of lower end of humerus (S49.1-)