▁ab use ▁and ▁   sp inal   in j ury . ▁ ▁The ▁location ▁of ▁the ▁ul cer , ▁its ▁size , ▁shape , ▁depth ▁and ▁whether ▁the ▁t issue ▁is ▁gran ulating ▁or ▁sl ough y ▁needs ▁to ▁be ▁considered . ▁Further ▁consider ations ▁include ▁whether ▁there ▁is ▁mal od our , ▁condition ▁of ▁the ▁border ▁of ▁the ▁w ound ▁and ▁pal p able ▁b one ▁and ▁sin us ▁formation ▁should ▁be ▁investig ated . ▁Sign s ▁of ▁in fection ▁require ▁to ▁be ▁considered ▁such ▁as ▁development ▁of ▁grey ▁or ▁yellow ▁t issue , ▁pur ul ent ▁dis charge , ▁un ple asant ▁sm ell , ▁sin us , ▁und erm ined ▁edges ▁and ▁expos ure ▁of ▁b one ▁or ▁tend on . ▁ ▁Ident ification ▁of ▁di ab etic ▁foot ▁in ▁medical ▁databases , ▁such ▁as ▁commercial ▁claims ▁and ▁pres cription ▁data , ▁is ▁complicated ▁by ▁the ▁lack ▁of ▁a ▁specific ▁I CD - 9 ▁code ▁for ▁di ab etic ▁foot ▁and ▁variation ▁in ▁coding ▁practices . ▁ ▁The ▁following ▁codes ▁indicate ▁ul cer ▁of ▁the ▁lower ▁lim b ▁or ▁foot : ▁▁▁ 7 0 7 . 1 ▁Ul cer ▁of ▁lower ▁lim bs , ▁except ▁pressure ▁ul cer ▁▁ 7 0 7 . 1 4 ▁Ul cer ▁of ▁he el ▁and ▁mid foot ▁▁ 7 0 7 . 1 5 ▁Ul cer ▁of ▁other ▁part ▁of ▁foot ▁▁ 7 0 7 . 1 9 ▁Ul cer ▁of ▁other ▁part ▁of ▁lower ▁lim b ▁ ▁One ▁or ▁more ▁codes ,