ICD-10-CM > M00-M99 > M20-M25 > M23 > M23.6 > M23.62 M23.62 Other spontaneous disruption of posterior cruciate ligament of knee Non-Billable/Non-Specific Codes M23.621Other spontaneous disruption of posterior cruciate ligament of right kneeM23.622Other spontaneous disruption of posterior cruciate ligament of left kneeM23.629Other spontaneous disruption of posterior cruciate ligament of unspecified knee