ICD-10-CM > M00-M99 > M65-M67 > M66 > M66.1 > M66.14 M66.14 Rupture of synovium, hand and fingers Non-Billable/Non-Specific Codes M66.141Rupture of synovium, right handM66.142Rupture of synovium, left handM66.143Rupture of synovium, unspecified handM66.144Rupture of synovium, right finger(s)M66.145Rupture of synovium, left finger(s)M66.146Rupture of synovium, unspecified finger(s)