DD92.2

ICD-11 MMS 2026-01

Functional defaecation disorders

Description

Functional defaecation disorders are characterised by paradoxical contraction or inadequate relaxation of the pelvic floor muscles during attempted defaecation (dyssynergic defaecation) or inadequate propulsive forces during attempted defaecation (inadequate defaecatory propulsion). The patients must satisfy diagnostic criteria for functional constipation.

Index terms

  • Functional defaecation disorders
  • Dyssynergic defaecation
  • Pelvic floor dyssynergia
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  • Inadequate defaecatory propulsion

Inclusions

  • Dyssynergic defaecation
  • Inadequate defaecatory propulsion

Excludes

  • 6C01 – Encopresis
  • 6C01.0 – Encopresis with constipation or overflow incontinence
  • 6C01.1 – Encopresis without constipation or overflow incontinence

Exclusions from above levels

  • 6C20 – Bodily distress disorder
  • 21 – Symptoms, signs or clinical findings, not elsewhere classified
  • 6B23 – Hypochondriasis
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  • 01 – Certain infectious or parasitic diseases
  • 02 – Neoplasms
  • 05 – Endocrine, nutritional or metabolic diseases
  • 06 – Mental, behavioural or neurodevelopmental disorders
  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

  • DD92.0 – Functional faecal incontinence
  • DD92.1 – Functional anorectal pain
  • DD92.Y – Other specified functional anorectal disorders
  • DD92.Z – Functional anorectal disorders, unspecified

Foundation entity

Functional defaecation disorders – http://id.who.int/icd/entity/811883649

Allowed postcoordination axes

Part of: DD92: Functional anorectal disorders › 13: Diseases of the digestive system