8A04

ICD-11 MMS 2026-01

Disorders associated with tremor

Description

Tremor is an involuntary oscillation of a body part and is commonly classified according to the behavioural circumstances in which it occurs. Tremor may occur during attempted relaxation (rest tremor), during a voluntarily held posture (postural tremor), or during a voluntary movement (kinetic tremor).

Exclusions from above levels

  • 6A06 – Stereotyped movement disorder
  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth and the puerperium
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  • 19 – Certain conditions originating in the perinatal period
  • 22 – Injury, poisoning or certain other consequences of external causes

Child codes

  • 8A04.0 – Enhanced physiological tremor
  • 8A04.1 – Essential tremor or related tremors
  • 8A04.2 – Rest tremor
  • 8A04.3 – Secondary tremor
  • 8A04.4 – Functional tremor
  • 8A04.Y – Other specified disorders associated with tremor
  • 8A04.Z – Disorders associated with tremor, unspecified

Sibling codes

  • 8A00 – Parkinsonism
  • 8A01 – Choreiform disorders
  • 8A02 – Dystonic disorders
  • 8A03 – Ataxic disorders
  • 8A05 – Tic disorders
  • 8A06 – Myoclonic disorders
  • 8A07 – Certain specified movement disorder
  • 8A0Y – Other specified movement disorders
  • 8A0Z – Movement disorders, unspecified

Foundation entity

Disorders associated with tremor – http://id.who.int/icd/entity/645263329

Allowed postcoordination axes

Part of: 08: Diseases of the nervous system