Wiki Unspecified vs unspecified?

[melissayoungblood90@gmail.com]

S02.600 "Fracture of unspecified part of body of mandible, unspecified side"
S02.609 "Fracture of mandible, unspecified"

These 2 codes read the same to me.
How are they different? When do you choose one over the other?

 

[SDargaj]

S02.600 specifies as being the body of mandible....

S02.609 does not specify part of mandible