CA00

ICD-11 MMS 2026-01

Acute nasopharyngitis

Description

A disease of the upper respiratory tract, caused by an infection with rhinovirus. This disease is characterised by pharyngitis, runny nose, stuffy nose, or cough. Transmission is by inhalation of infected respiratory secretions, or direct contact.

Index terms

  • Acute nasopharyngitis
  • Nasopharyngitis NOS
  • Rhinopharyngitis
Show allHide
  • acute coryza
  • acute infective rhinitis
  • acute nasal catarrh
  • acute nasopharyngeal catarrh
  • acute rhinitis
  • cold
  • common cold
  • coryza
  • epipharyngitis
  • head cold
  • infective nasopharyngitis
  • infective nasopharyngitis NOS
  • infective rhinitis
  • inflammatory disease of mucous membrane
  • mucosal inflammation
  • mucositis NOS
  • Streptococcal nasopharyngitis
  • Acute catarrhal inflammation
  • acute catarrh
  • catarrh
  • febrile catarrh
  • infectious catarrh
  • Pneumococcal rhinitis
  • Septic nasopharyngitis

Excludes

  • CA02 – acute sore throat
  • CA08.0 – Allergic rhinitis
  • CA08.3 – Vasomotor rhinitis
  • CA09.0 – Chronic rhinitis
  • CA09.1 – Chronic nasopharyngitis
  • CA09.2 – chronic sore throat
  • CA0Y – sore throat NOS

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
Show allHide
  • 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

  • CA01 – Acute sinusitis
  • CA02 – Acute pharyngitis
  • CA03 – Acute tonsillitis
  • CA04 – Acute laryngopharyngitis
  • CA05 – Acute laryngitis or tracheitis
  • CA06 – Acute obstructive laryngitis or epiglottitis
  • CA07 – Acute upper respiratory infections of multiple and unspecified sites
  • CA08 – Vasomotor or allergic rhinitis
  • CA09 – Chronic rhinitis, nasopharyngitis or pharyngitis
  • CA0A – Chronic rhinosinusitis
  • CA0B – Silent sinus syndrome
  • CA0C – Cyst or mucocele of nose or nasal sinus
  • CA0D – Deviated nasal septum
  • CA0E – Hypertrophy of nasal turbinates
  • CA0F – Chronic diseases of tonsils or adenoids
  • CA0G – Chronic laryngitis or laryngotracheitis
  • CA0H – Diseases of vocal cords or larynx, not elsewhere classified
  • CA0J – Nasal polyp
  • CA0K – Abscess of upper respiratory tract
  • CA0Y – Other specified upper respiratory tract disorders
  • CA0Z – Upper respiratory tract disorders, unspecified

Foundation entity

Acute nasopharyngitis – http://id.who.int/icd/entity/2066255370

Allowed postcoordination axes

Part of: 12: Diseases of the respiratory system