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An expert group has been responsible for the ATC classification of radiopharmaceuticals in V09 and V10. The group has also prepared the guidelines for classification of these products.
Radiopharmaceuticals for diagnostic use are classified in this group, while radiopharmaceuticals for therapeutic use are classified in V10. In general, the 3rd level are subdivided according to site of action or organ system, the 4th level according to radionuclide and the 5th level specifies the chemical substance. The ATC 5th level defines the actual form essential in nuclear medicine procedures, which includes radionuclide and carrier molecule. Therefore, products on the market, that can often be regarded as intermediate products rather than ready-to-use radiopharmaceuticals, can be given more than one (5th level) ATC code, e.g. technetium (^99mTc) exametazime (V09AA01) and technetium (^99mTc) exametazime labelled cells (V09HA02).
ATC codes are not assigned for radionuclide precursors which are used only in the radiolabelling of another substance prior to administration.

V09A CENTRAL NERVOUS SYSTEM

This group comprises preparations used in CNS investigations in diagnostic nuclear medicine.

V09B SKELETON

This group comprises preparations used in bone imaging. Radiopharmaceuticals used for the investigation of bone marrow are classified in V09D - Hepatic and reticulo endothelial system.

V09C RENAL SYSTEM

This group comprises preparations used for the visualisation of kidneys and urinary tract and preparations for functional studies of the renal system.

V09D HEPATIC AND RETICULO ENDOTHELIAL SYSTEM

This group comprises radiopharmaceuticals used for the imaging of liver, gall bladder, lymphatic system and bone marrow.

V09E RESPIRATORY SYSTEM

This group comprises radiopharmaceuticals for the lung ventilation and lung perfusion studies.

V09F THYROID

This group comprises radiopharmaceuticals used for thyroid imaging. Thalliumchloride and technetium-sestamibi used for parathyroid imaging are classified in V09G - Cardiovascular system.

V09G CARDIOVASCULAR SYSTEM

This group comprises radiopharmaceuticals for myocardial scintigraphy, ejection fraction measurements, and vascular disorders.

V09H INFLAMMATION AND INFECTION DETECTION

This group comprises agents for the detection of inflammation and infection. Labelled blood cells are classified in this group. Agents that are used for the labelling of these cells can also be classified elsewhere, e.g. technetium-exametazime is classified in V09A - Central Nervous System. No subdivision is made for the type of labelled cells (erythrocytes, granulocytes or autologous etc.).

V09I TUMOUR DETECTION

This group comprises monoclonal antibodies and other compounds used for tumour detection.

V09X OTHER DIAGNOSTIC RADIOPHARMACEUTICALS

This group contains various diagnostic radiopharmaceuticals which cannot be classified in the preceding groups.