Otolaryngology — OHIP Billing Codes

All 182 Otolaryngology codes (N codes)

Complete alphabetical list of OHIP N-prefix billing codes from the Ontario Schedule of Benefits.

• N102Meningioma and other tumourous lesions - supratentorial
• N103Craniotomy plus excision - supratentorial
• N104Craniotomy plus removal - supratentorial
• N105Carotid circulation - per vessel
• N106Cerebral vascular malformation - supratentorial
• N107Endovascular approach for arteriovenous malformation
• N108Obliteration of intracranial dural arteriovenous fistula
• N109Hemispherectomy
• N110Lobectomy and/or excision of cortical scar for epilepsy
• N111Transsphenoidal microscopic resection of lesion(s) originating in the sella turcica
• N112Endonasal endoscopic or microscopic approach for surgical access to sella turcica
• N113Craniotomy for brain biopsy (other than for tumour)
• N114Transsphenoidal endonasal endoscopic resection of pituitary lesion(s)
• N115Craniotomy - aspiration
• N116Endonasal endoscopic resection of non-pituitary lesion(s)
• N117Craniotomy
• N118Endovascular approach for dural arteriovenous fistula
• N119Intracranial implantation of chronic surface electrodes
• N120Burr hole plus drainage
• N121Extracranial-intracranial long venous bypass
• N122Anterior circulation
• N123Stereotaxis - intracranial
• N124Functional stereotaxy
• N125Posterior circulation, including vein of Galen
• N126Intra-oral approach to lesions of the skull base and upper cervical spine
• N127Re-opening of craniotomy for post-operative haematoma or for removal of bone flap
• N128Repair of encephalocoele
• N129Posterior fossa decompression for Arnold Chiari malformation
• N130Craniotomy plus midline commissurotomy
• N131N131
• N132N132
• N139Reduction of skull fracture - simple, depressed
• N140Reduction of skull fracture - compound
• N143Drainage by burr hole(s) - unilateral
• N144Drainage and/or removal by craniotomy
• N148Removal of intracerebral haematoma and/or debridement of traumatized brain
• N149Removal of foreign body from brain
• N150C.S.F. leak - intracranial repair
• N151Craniotomy plus excision - infratentorial
• N152Craniotomy plus lobectomy
• N153Meningioma and other tumourous lesions - infratentorial or basal
• N154Vertebrobasilar circulation, including aneurysm of vein of Galen
• N155Cerebral vascular malformation - infratentorial
• N156Occipital artery
• N157Craniotomy plus removal - infratentorial
• N158Craniotomy plus evacuation - supratentorial
• N159Craniotomy plus evacuation - infratentorial
• N160Burr hole plus aspiration
• N161Cranioplasty, any non-autologous material
• N162Morcellation procedure - one suture
• N163Morcellation procedure - multiple sutures
• N164Lateral canthal advancement - one surgeon
• N165Lateral canthal advancement - two surgeons, major portion
• N166Lateral canthal advancement - two surgeons, lesser portion
• N167Lateral canthal advancement - bilateral - one surgeon
• N168Lateral canthal advancement - bilateral - two surgeons, major portion
• N169Lateral canthal advancement - bilateral - two surgeons, lesser portion
• N174Conversion of shunt
• N177Sciatic nerve in buttock
• N183Nerve graft - minor - (sensory/cutaneous nerve)
• N184Decompression of posterior tibial or common peroneal nerve
• N188Minor nerve - including digital, cutaneous or lateral femoral cutaneous nerve
• N189Ulnar nerve transposition at elbow
• N190Exploration and/or decompression and/or neurolysis of ulnar nerve (elbow)
• N200Decompressive craniectomy
• N201Rib graft cranioplasty
• N202Replacement of bone flap
• N203Skull tumour, excision
• N206Craniosynostosis, linear craniectomy - one suture
• N207Craniosynostosis, multiple sutures
• N208Craniotomy for craniofacial repair
• N211Removal of orbital tumour
• N212Orbital decompression
• N213Decompression of optic nerve(s)
• N218Extracranial-intracranial microvascular anastomosis superficial temporal artery
• N223Vertebral endarterectomy
• N230CSF shunting procedures - all types
• N245Revision of CSF shunt - operative
• N246Removal of shunt - any type
• N249Third ventriculostomy
• N258Percutaneous coagulation or glyceral injection of gasserian (trigeminal) ganglion or root - unilateral
• N259Decompression or rhizotomy (partial or complete) trigeminal nerve
• N265Differential section facial nerve for hemi-facial spasm (extracranial approach)
• N266Anastomosis hypoglossal or accessory to facial nerve
• N267Occipital and/or suboccipital craniectomy for compression, decompression or section of cranial nerves
• N269XI - Division of nerves to sternomastoid in neck
• N282Brachial plexus (excluding excision of cervical and/or first rib and scalenotomy)
• N283Decompression for thoracic outlet syndrome
• N284Excision of first rib and/or cervical rib
• N285Exploration, decompression, transposition, or neurolysis of major nerve
• N286Tumour or neuroma - major nerve
• N287Nerve suture - major
• N288Nerve graft - major
• N289Nerve suture - minor
• N290Decompression median nerve at wrist (carpal tunnel syndrome)
• N291Nerve transfer - major
• N293Nerve transfer - minor (sensory/cutaneous nerve)
• N295Excision of Morton’s or subcutaneous neuroma, glomus or small cutaneous nerve tumour
• N500Disc excision (one level)
• N501Vertebrectomy
• N502Disc excision (one level)
• N503Vertebrectomy (removal of vertebral body and excision of adjacent discs)
• N504Disc excision (one level)
• N505Vertebrectomy (removal of vertebral body and excision of adjacent discs)
• N506Disc excision (one level)
• N507Vertebrectomy (removal of vertebral body and excision of adjacent discs)
• N508Disc excision (one level)
• N509One level - unilateral
• N510One level - bilateral
• N511One level - unilateral
• N512One level - bilateral
• N513One disc level - below C2
• N514One disc level - below C2
• N515One disc level - below C2
• N516Anterior spinal arthrodesis with instrumentation without decompression - cervical - one disc level
• N517Anterior spinal arthrodesis with instrumentation - Thoracic - One disc level
• N518Anterior spinal arthrodesis with instrumentation without decompression - Thoracic - thoracotomy by separate surgeon - One disc level
• N519C1/C2 fusion using graft/posterior wires
• N520One level - laminoplasty (includes fixation of lamina)
• N521Re-opening of laminectomy for post-op haematoma/infection
• N522Re-opening of laminectomy for repair of CSF leak
• N523AV malformation of cord - excision/obliteration
• N524One level - bilateral canal enlargement - unilateral approach
• N525Artificial disc insertion (approach by separate surgeon)
• N526Artificial disc insertion
• N527Percutaneous cordotomy or tractotomy
• N528C1/C2 screw fixation (transarticular, pedicle, lateral mass)
• N529Medullary spinal trigeminal tractotomy
• N530Implantation of spinal cord stimulating electrode by laminectomy
• N531Removal of any stimulation pack or electrode
• N532C1/C2 screw fixation
• N533Pars reconstruction for spondylolysis
• N534Percutaneous radio frequency posterior dorsal root rhizotomy
• N535Repair of meningocoele
• N536Repair of myelomeningocoele (one surgeon)
• N537Repair of myelomeningocoele (two surgeons) - neurosurgeon
• N538Repair of myelomeningocoele (two surgeons) - reconstructive surgeon
• N539Anterior scoliosis correction
• N540Posterior scoliosis correction - up to six levels
• N541Removal of posterior instrumentation
• N542Sympathectomy - unilateral - cervical
• N543Sympathectomy - unilateral - cervico-dorsal
• N544Sympathectomy - unilateral - thoracic approach
• N545Sympathectomy - unilateral - lumbar
• N546Open vertebral biopsy - posterior approach
• N547Open vertebral biopsy - anterior approach - sole procedure
• N548Incision and drainage only, posterior approach
• N549Incision and drainage including sequestrectomy, anterior approach
• N550Sequestrectomy, posterior approach
• N551Excision spinous process - sole procedure
• N552Excision transverse process - sole procedure
• N553Simple soft tissue tumour excision under 5cm
• N554Radical soft tissue tumour excision 5cm and greater
• N555Insertion, revision, or removal of implantable infusion pump
• N556First site
• N557Syringo-subarachnoid shunt
• N558Syringopleural/syringoperitoneal shunt
• N559Anterior spinal arthrodesis with instrumentation without decompression - Lumbar - One disc level
• N560Intradural extramedullary spinal tumour(s) - partial or total removal
• N561Intradural intramedullary spinal tumour(s) - partial or total removal
• N562Intradural neurolysis of unusual lesions
• N563Implantation of permanent subcutaneous reservoir including laminectomy
• N564Open myelotomy for lesion
• N565Repair of lipomeningocoele including release of tethered cord
• N566Repair of anterior sacral meningocoele including release of tethered cord
• N567Repair of intraspinal meningocoele
• N568Removal of anterior instrumentation
• N569Anterior cervical decompression by intra-oral approach
• N570Vertebroplasty (injection of bone cement) as sole procedure, first level
• N571Percutaneous discotomy
• N572Open reduction, any single level, spine fracture/dislocation, anterior/posterior
• N573Anterior odontoid screw fixation
• N574Above cord and conus (includes partial rib resection) - each level
• N575Below conus - each level
• N576Smith Peterson Osteotomy - each level
• N577Intradural rhizotomy anterior/posterior
• N578Dorsal root entry zone lesions for pain relief
• N579Vertebrectomy (removal of vertebral body and excision of adjacent discs)
• N580One disc level
• N581One disc level
• N582One disc level
• N583Kyphoplasty (balloon tamp and injection of bone cement) as sole procedure, first level