FA31.8

ICD-11 MMS 2026-01

Acquired unequal limb length

Index terms

  • Acquired unequal limb length
  • unequal length of limbs
  • unequal limb length
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  • Acquired unequal limb length, multiple sites
  • Acquired unequal limb length, shoulder region
  • Acquired unequal limb length, acromioclavicular joint
  • Acquired unequal limb length, glenohumeral joint
  • Acquired unequal limb length, sternoclavicular joint
  • Acquired unequal limb length, upper arm
  • Acquired unequal limb length, elbow joint
  • Acquired unequal limb length, forearm
  • short radius
  • Acquired unequal limb length, wrist joint
  • Acquired unequal limb length, hand
  • Acquired unequal limb length, carpus
  • Acquired unequal limb length, fingers
  • Acquired unequal limb length, metacarpus
  • Acquired unequal limb length, pelvic region or thigh
  • Acquired unequal limb length, hip joint
  • short hip
  • Shortening of femur
  • short femur
  • short thigh
  • Acquired unequal limb length, lower leg
  • Acquired unequal limb length, knee joint
  • Acquired unequal limb length, ankle or foot
  • Acquired unequal limb length, ankle joint
  • Acquired unequal limb length, metatarsus
  • Acquired unequal limb length, other joints in foot
  • Acquired unequal limb length, tarsus
  • Acquired unequal limb length, toes
  • Acquired unequal arm length
  • short arm
  • unequal arm length
  • Acquired unequal leg length
  • leg length discrepancy
  • leg length inequality
  • leg lengthening
  • short leg
  • unequal leg length

Exclusions from above levels

  • FA30 – Acquired deformities of fingers or toes
  • FB82.1 – Coxa plana
  • http://id.who.int/icd/entity/894625870 – congenital: deformities and malformations of limbs
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  • QF00 – Acquired absence of limb
  • 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

  • FA31.0 – Valgus deformity, not elsewhere classified
  • FA31.1 – Varus deformity, not elsewhere classified
  • FA31.2 – Flexion deformity
  • FA31.3 – Acquired wrist drop
  • FA31.4 – Acquired foot drop
  • FA31.5 – Acquired pes planus
  • FA31.6 – Acquired clawhand or clubhand
  • FA31.7 – Acquired clawfoot or clubfoot
  • FA31.Y – Other specified acquired deformities of limbs
  • FA31.Z – Acquired deformities of limbs, unspecified

Foundation entity

Acquired unequal limb length – http://id.who.int/icd/entity/731197957

Allowed postcoordination axes

Part of: FA31: Other acquired deformities of limbs › 15: Diseases of the musculoskeletal system or connective tissue