2007 ICD-9-CM Procedure 02.31 Ventricular shunt to structure in head and neck 02.31 is a specific code that can be used to specify a procedure 02.31 contains 6 index entries View the full Volume 3 02.* hierarchy 02.31 also known as: Ventricle to nasopharynx shunt Ventriculomastoid anastomosis Index entries containing 02.31: Anastomosis ventriculomastoid (with valve) 02.31 Shunt -- see also Anastomosis and Bypass, vascular ventricular (cerebral) (with valve) 02.2 to head or neck structure 02.31 mastoid 02.31 nasopharynx 02.31 ventriculomastoid (with valve) 02.31 ventriculonasopharyngeal 02.31