CA09.1

ICD-11 MMS 2026-01

Chronic nasopharyngitis

Description

Persistent or recurrent inflammation of the top portion of the pharynx situated posterior to the nose and superior to the soft palate, usually including its mucosa, related lymphoid structure, and glands.

Index terms

  • Chronic nasopharyngitis
  • chronic rhinopharyngitis
  • Nasopharyngeal atrophy
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  • Nasopharyngeal catarrh

Excludes

  • CA00 – Acute nasopharyngitis

Exclusions from above levels

  • CA22.0 – Chronic obstructive pulmonary disease with acute exacerbation, unspecified
  • 01 – Certain infectious or parasitic diseases
  • 05 – Endocrine, nutritional or metabolic diseases
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  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 19 – Certain conditions originating in the perinatal period
  • 20 – Congenital malformations, deformations and chromosomal abnormalities
  • 22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

Foundation entity

Chronic nasopharyngitis – http://id.who.int/icd/entity/889423501

Allowed postcoordination axes

Part of: CA09: Chronic rhinitis, nasopharyngitis or pharyngitis › 12: Diseases of the respiratory system