• 1 - A condition where surgery has been performed (Surgical code)
• 2 - A condition where no surgery has been performed (non-surgical code)
  • 1 - Respiratory
    • 1 - Upper airway or trachea
      • 30 - Obstruction
        • 1 - Extrinsic compression of airway by haematoma
        • 2 - Extrinsic compression of airway by abscess
        • 3 - Extrinsic compression of airway by thyroid or lymphoid tissue
        • 4 - Epiglottitis
        • 5 - Croup or laryngotracheobronchitis
        • 6 - Hanging or strangulation
        • 7 - Tracheal stenosis
        • 8 - Upper airway obstruction by foreign body
        • 9 - Inhalation burns
        • 10 - Angioedema due to drug or treatment reaction
        • 11 - Oedema due to venous obstruction
        • 12 - Obstructive sleep apnoea
        • 14 - Vascular ring
        • 15 - Laryngospasm
        • 16 - Laryngeal cord paresis
        • 17 - Extubation related oedema or obstruction
        • 18 - Surgical emphysema
        • 19 - Extrinsic compression of airway by tumour or malignancy
        • 20 - Obstruction of tracheostomy
        • 21 - Displacement of tracheostomy
        • 22 - Haemorrhage into upper airway