ICD-10-CM > M00-M99 > M20-M25 > M23 > M23.6 > M23.67 M23.67 Other spontaneous disruption of capsular ligament of knee Non-Billable/Non-Specific Codes M23.671Other spontaneous disruption of capsular ligament of right kneeM23.672Other spontaneous disruption of capsular ligament of left kneeM23.679Other spontaneous disruption of capsular ligament of unspecified knee