A: Patient A is coded 116004.5 and is assigned to the ISS Head region. Patient B is coded 416002.1 and is assigned to the ISS External region.
Penetrating injury codes listed under the Whole Area section of the dictionary are generally assigned to the External body region for ISS purposes. An exception is made for penetrating injuries to the head.
In AIS 2005 there is a new code for massive destruction of the whole face (216008.4) which is assigned to the Face region for ISS purposes although all the other penetrating codes for Face are assigned to the External body region for ISS purposes.