ICD-10-CM > M00-M99 > M20-M25 > M22 > M22.1 M22.1 Recurrent subluxation of patella Non-Billable/Non-Specific Applicable To Incomplete dislocation of patella Codes M22.10Recurrent subluxation of patella, unspecified kneeM22.11Recurrent subluxation of patella, right kneeM22.12Recurrent subluxation of patella, left knee