Body Part Key of ICD-10-PCS for the Nerves of the Head, Neck, and Trunk Body Part Anatomical Structures Included Nerve, Abdominal Sympathetic Abdominal aortic plexus Auerbach’s (myenteric plexus) Celiac (solar) plexus Celiac ganglion Gastric plexus Hepatic plexus Inferior hypogastric plexus Inferior mesenteric ganglion Inferior mesenteric plexus Meissner’s (submucous) plexus Myenteric (Auerbach’s) plexus Pancreatic plexus Pelvic splanchnic nerve Renal plexus Solar (celiac) plexus Splenic plexus Submucous (Meissner’s) plexus Superior hypogastric plexus Superior mesenteric ganglion Superior mesenteric plexus Suprarenal plexus Nerve, Acoustic Cochlear nerve Scarpa’s (vestibular) ganglion Spiral ganglion Vestibular (Scarpa’s) ganglion Vestibular nerve Nerve, Cervical Greater occipital nerve Suboccipital nerve Third occipital nerve Nerve, Facial Chorda tympani Geniculate ganglion Greater superficial petrosal nerve Nerve to the stapedius Parotid plexus Posterior auricular nerve Submandibular ganglion Nerve, Glossopharyngeal Carotid sinus nerve Tympanic nerve Nerve, Head and Neck Sympathetic Cavernous plexus Cervical ganglion Ciliary ganglion Internal carotid plexus Otic ganglion Pterygopalatine (sphenopalatine) ganglion Sphenopalatine (pterygopalatine) ganglion Stellate ganglion Submandibular ganglion Submaxillary ganglion Page 1 of 3 Body Part Key of ICD-10-PCS for the Nerves of the Head, Neck, and Trunk Body Part Anatomical Structures Included Nerve, Lumbar Lumbosacral trunk Superior clunic (cluneal) nerve Nerve, Lumbar Sympathetic Lumbar ganglion Lumbar splanchnic nerve Nerve, Olfactory Olfactory bulb Nerve, Optic Optic chiasma Nerve, Phrenic Accessory phrenic nerve Nerve, Pudenal Posterior labial nerve Posterior scrotal nerve Nerve, Sacral Sympathetic Ganglion impar (ganglion of Walther) Pelvic splanchnic nerve Sacral ganglion Sacral splanchnic nerve Nerve, Thoracic Intercostal nerve Intercostobrachial nerve Subcostal nerve Nerve, Thoracic Sympathetic Cardiac plexus Esophageal plexus Greater splanchnic nerve Inferior cardiac nerve Least splanchnic nerve Lesser splanchnic nerve Middle cardiac nerve Pulmonary plexus Superior cardiac nerve Thoracic aortic plexus Thoracic ganglion Nerve, Trigeminal Gasserian ganglion Mandibular nerve Maxillary nerve Ophthalmic nerve Nerve, Vagus Anterior vagal trunk Pharyngeal plexus Posterior vagal trunk Pulmonary plexus Recurrent laryngeal nerve Superior laryngeal nerve Plexus, Cervical Ansa cervicalis Cutaneous (transverse) cervical nerve Great auricular nerve Lesser occipital nerve Supraclavicular nerve Transverse (cutaneous) cervical nerve Page 2 of 3 Body Part Key of ICD-10-PCS for the Nerves of the Head, Neck, and Trunk Body Part Anatomical Structures Included Plexus, Lumbar Accessory obturator nerve Genitofemoral nerve Iliohypogastric nerve Ilioinguinal nerve Lateral femoral cutaneous nerve Obturator nerve Superior gluteal nerve Plexus, Sacral Inferior gluteal nerve Posterior femoral cutaneous nerve Pudendal nerve Source: 2012 ICD-10-PCS Reference Manual http://www.cms.gov/Medicare/Coding/ICD10/index.html Page 3 of 3 .