8B61.2

ICD-11 MMS 2026-01

Juvenile form spinal muscular dystrophy, Type III

Description

In SMA type 3, weakness of muscles is seen after 18 months of age. The child is able to sit and stand independently. There is a limb girdle-type of distribution of weakness causing waddling gait, falls, and difficulty with running. The ability to walk may be lost, requiring a wheelchair as the disease progresses. The life expectancy may be normal.

Index terms

  • Juvenile form spinal muscular dystrophy, Type III
  • Kugelberg-Welander Disease

Exclusions from above levels

  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 19 – Certain conditions originating in the perinatal period
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  • 22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

  • 8B61.0 – Infantile spinal muscular atrophy, Type I
  • 8B61.1 – Late infantile spinal muscular atrophy, Type II
  • 8B61.3 – Adult onset spinal muscular atrophy, Type IV
  • 8B61.4 – Localised spinal muscular atrophy
  • 8B61.Y – Other specified spinal muscular atrophy
  • 8B61.Z – Spinal muscular atrophy, unspecified

Foundation entity

Juvenile form spinal muscular dystrophy, Type III – http://id.who.int/icd/entity/677572815

Allowed postcoordination axes

Part of: 8B61: Spinal muscular atrophy › 08: Diseases of the nervous system