DIFF Subgroup
A61M 16/0411 Full Title
Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators (iron lungs A61H31/02); Tracheal tubes > Tracheal tubes (catheters in general A61M25/00)
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Note: 1 CPC extensions are marked as secondary classification only.