ICD-10-CM > M00-M99 > M60-M63 > M61 > M61.3 > M61.36 M61.36 Calcification and ossification of muscles associated with burns, lower leg Non-Billable/Non-Specific Codes M61.361Calcification and ossification of muscles associated with burns, right lower legM61.362Calcification and ossification of muscles associated with burns, left lower legM61.369Calcification and ossification of muscles associated with burns, unspecified lower leg