ICD-10-CM > M00-M99 > M00-M02 > M00 > M00.8 > M00.87 M00.87 Arthritis due to other bacteria, ankle and foot Non-Billable/Non-Specific Applicable To Arthritis due to other bacteria, tarsus, metatarsus, and phalanges Codes M00.871Arthritis due to other bacteria, right ankle and footM00.872Arthritis due to other bacteria, left ankle and footM00.879Arthritis due to other bacteria, unspecified ankle and foot