M25.17 - Fistula, ankle and foot M25.1 - Fistula of joint M25.17 - Fistula, ankle and foot
M25.171 - Fistula, right ankle M25.172 - Fistula, left ankle M25.173 - Fistula, unspecified ankle M25.174 - Fistula, right foot M25.175 - Fistula, left foot M25.176 - Fistula, unspecified foot