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M223-char group

Disorders of patella

⇄ Primary-code rule changed vs QĐ4469

Coding rules (TT06)

  • ●Avoid — more specific 4-5 char codes exist (see below)

Coding guidance (WHO 2019)

Excl.: dislocation of patella (S83.0)

Codes within M22

M22.0Recurrent dislocation of patellaM22.1Recurrent subluxation of patellaM22.2Patellofemoral disordersM22.3Other derangements of patellaM22.4Chondromalacia patellaeM22.8Other disorders of patellaM22.9Disorder of patella, unspecified