ICD-10-CM > M00-M99 > M60-M63 > M61 > M61.4 > M61.47 M61.47 Other calcification of muscle, ankle and foot Non-Billable/Non-Specific Codes M61.471Other calcification of muscle, right ankle and footM61.472Other calcification of muscle, left ankle and footM61.479Other calcification of muscle, unspecified ankle and foot