CA0F

ICD-11 MMS 2026-01

Chronic diseases of tonsils or adenoids

Description

Any persistent or recurrent disease affecting the round-to-oval mass of lymphoid tissue embedded in the lateral wall of the pharynx (tonsils) or the collection of lymphoid nodules on the posterior wall and roof of the nasopharynx (adenoids)

Excludes

  • CA03.Y – Recurrent acute tonsillitis

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

Child codes

  • CA0F.0 – Hypertrophy of tonsils
  • CA0F.1 – Hypertrophy of adenoids
  • CA0F.3 – Hypertrophy of tonsils with hypertrophy of adenoids
  • CA0F.Y – Other specified chronic diseases of tonsils or adenoids
  • CA0F.Z – Chronic diseases of tonsils or adenoids, unspecified

Sibling codes

  • CA00 – Acute nasopharyngitis
  • 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
  • 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

Chronic diseases of tonsils or adenoids – http://id.who.int/icd/entity/512796448

Allowed postcoordination axes

Part of: 12: Diseases of the respiratory system