Measurement
4A00 Central Nervous
4A01 Peripheral Nervous
4A02 Cardiac
4A03 Arterial
4A04 Venous
4A05 Circulatory
4A06 Lymphatic
4A07 Visual
4A08 Olfactory
4A09 Respiratory
4A0B Gastrointestinal
4A0C Biliary
4A0D Urinary
4A0F Musculoskeletal
4A0H Products of Conception, Cardiac
4A0J Products of Conception, Nervous
4A0Z None