Insect bite (nonvenomous) of unspecified part of head

• 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 ear
• injuries of eye
• injuries of face [any part]
• injuries of gum
• injuries of jaw
• injuries of oral cavity
• injuries of palate
• injuries of periocular area
• injuries of scalp
• injuries of temporomandibular joint area
• injuries of tongue
• injuries of tooth

• burns and corrosions (T20-T32)
• effects of foreign body in ear (T16)
• effects of foreign body in larynx (T17.3)
• effects of foreign body in mouth NOS (T18.0)
• effects of foreign body in nose (T17.0-T17.1)
• effects of foreign body in pharynx (T17.2)
• effects of foreign body on external eye (T15.-)
• frostbite (T33-T34)
• insect bite or sting, venomous (T63.4)

for any associated infection

• diffuse cerebral contusion (S06.2-)
• focal cerebral contusion (S06.3-)
• injury of eye and orbit (S05.-)
• open wound of head (S01.-)

The appropriate 7th character is to be added to each code from category S00