FA33.4Y

ICD-11 MMS 2026-01

Other specified chronic instability of knee

Exclusions from above levels

  • FA32.0 – Recurrent instability of patella
  • FA31 – deformity of knee
  • FA32 – Disorders of patella
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  • FA32.0 – recurrent dislocation or subluxation patella
  • FA34.4 – Ankylosis of joint
  • http://id.who.int/icd/entity/2016483996 – Injuries to the knee or lower leg
  • http://id.who.int/icd/entity/1989556002 – Conditions associated with the spine
  • 01 – Certain infectious or parasitic diseases
  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 19 – Certain conditions originating in the perinatal period
  • 22 – Injury, poisoning or certain other consequences of external causes
  • DA0E.8 – Temporomandibular joint disorders

Sibling codes

  • FA33.40 – Chronic instability of knee, medial collateral ligament or other or unspecified part of medial meniscus
  • FA33.4Z – Chronic instability of knee, unspecified

Foundation entity

Chronic instability of knee – http://id.who.int/icd/entity/655149009

Allowed postcoordination axes

Part of: FA33.4: Chronic instability of knee › FA33: Internal derangement of knee › 15: Diseases of the musculoskeletal system or connective tissue