DD90.6

ICD-11 MMS 2026-01

Adult rumination syndrome

Description

Adult rumination syndrome is a disorder in adulthood characterised by the persistent or recurrent regurgitation of recently ingested food into the mouth with subsequent spitting or remastication and swallowing.

Index terms

  • Adult rumination syndrome

Excludes

  • 6B85 – Rumination-regurgitation disorder
  • MB29.4 – Rumination-regurgitation

Exclusions from above levels

  • 6B23 – Hypochondriasis
  • 6C20 – Bodily distress disorder
  • 21 – Symptoms, signs or clinical findings, not elsewhere classified
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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

  • DD90.0 – Globus
  • DD90.1 – Functional swallowing disorder
  • DD90.2 – Functional heartburn
  • DD90.3 – Functional dyspepsia
  • DD90.4 – Functional nausea or vomiting
  • DD90.5 – Functional belching disorders
  • DD90.Y – Other specified functional oesophageal or gastroduodenal disorders
  • DD90.Z – Functional oesophageal or gastroduodenal disorders, unspecified

Foundation entity

Adult rumination syndrome – http://id.who.int/icd/entity/55732315

Allowed postcoordination axes

Part of: DD90: Functional oesophageal or gastroduodenal disorders › 13: Diseases of the digestive system