• 1 - A condition where surgery has been performed (Surgical code)
    • 8 - Endocrine, Metabolic, Thermoregulation and Poisoning
      • 8 - Body fluids or tissues
        • 21 - Hypocalcaemia
          • 1 - Hypoparathyroidism
          • 2 - Chelating agent toxicity
  • 2 - A condition where no surgery has been performed (non-surgical code)