ICD-10-CM > M00-M99 > M60-M63 > M61 > M61.2 > M61.26 M61.26 Paralytic calcification and ossification of muscle, lower leg Non-Billable/Non-Specific Codes M61.261Paralytic calcification and ossification of muscle, right lower legM61.262Paralytic calcification and ossification of muscle, left lower legM61.269Paralytic calcification and ossification of muscle, unspecified lower leg