DD90.2

ICD-11 MMS 2026-01

Functional heartburn

Description

Functional heartburn is a burning retrosternal discomfort or pain, without any structural abnormalities and without gastroesophageal reflux (GERD).

Index terms

  • Functional heartburn

Excludes

  • MD95 – heartburn NOS

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
  • DD90.3 – Functional dyspepsia
  • DD90.4 – Functional nausea or vomiting
  • DD90.5 – Functional belching disorders
  • DD90.6 – Adult rumination syndrome
  • DD90.Y – Other specified functional oesophageal or gastroduodenal disorders
  • DD90.Z – Functional oesophageal or gastroduodenal disorders, unspecified

Foundation entity

Functional heartburn – http://id.who.int/icd/entity/1172376859

Allowed postcoordination axes

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