ICD-10-CM > M00-M99 > M20-M25 > M23 > M23.6 > M23.61 M23.61 Other spontaneous disruption of anterior cruciate ligament of knee Non-Billable/Non-Specific Codes M23.611Other spontaneous disruption of anterior cruciate ligament of right kneeM23.612Other spontaneous disruption of anterior cruciate ligament of left kneeM23.619Other spontaneous disruption of anterior cruciate ligament of unspecified knee