Summary & Overview

CPT 0987T: Intracranial Optical Coherence Tomography (OCT), Add-On

CPT code 0987T is an add‑on imaging code for optical coherence tomography (OCT) of intracranial cerebral blood vessels, capturing detailed vessel structure to support diagnosis and guide neuroendovascular interventions. As an ancillary imaging code, it is billed in addition to the primary intracranial imaging service for each additional vessel examined. Its adoption reflects growing use of high-resolution intravascular imaging in complex cerebrovascular care, with implications for procedure coding, coverage determinations, and facility billing practices nationwide.

Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication summarizes how 0987T interfaces with existing neurointerventional services and what providers can expect in terms of coding posture and payer recognition. Readers will find benchmarks for coding frequency and utilization where available, summaries of typical clinical contexts for intracranial OCT, and concise explanations of service setting and reporting expectations. The piece also outlines areas where policy updates or coverage guidance may influence adoption and reimbursement pathways. Data not available in the input is noted where applicable.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicare0987TCPTintracranial OCTneurointerventionaldiagnostic imagingadd-on codevascular imaging

Billing Code Overview

CPT code 0987T describes imaging of an intracranial cerebral blood vessel using optical coherence tomography (OCT). The procedure obtains high-resolution cross-sectional images of the vessel wall and lumen to assist diagnosis or guide endovascular treatment. The service includes radiological supervision, interpretation, and reporting and functions as an add‑on code that applies to each additional intracranial vessel imaged after the first one.

Service type: Diagnostic vascular imaging — intracranial OCT

Typical site of service: Hospital outpatient department or ambulatory surgical center (interventional neuroradiology/vascular suite)

Clinical & Coding Specifications

Clinical Context

A typical patient is a 58-year-old male with sudden-onset, severe headache and focal neurologic deficits admitted to a neurointerventional suite for angiographic evaluation of suspected intracranial vascular pathology. After diagnostic cerebral angiography identifies a segment of an intracranial cerebral artery requiring high-resolution structural assessment, the interventional neuroradiologist performs optical coherence tomography (OCT) imaging of the intracranial vessel to evaluate vessel wall layers, plaque morphology, or stent apposition. The procedure is performed under fluoroscopic guidance with vascular access, catheter navigation into the target intracranial vessel, contrast angiography as needed, OCT catheter advancement, image acquisition, and immediate radiological supervision, interpretation, and reporting. The first intracranial vessel imaged is reported with the primary code; each additional intracranial vessel imaged during the same session is reported with add-on 0987T per vessel. Typical site of service is an inpatient or outpatient hospital-based angiography suite, hybrid operating room, or an ambulatory surgical center equipped for neuroendovascular procedures. Common clinical indications include intracranial atherosclerotic disease, evaluation of in-stent restenosis or stent apposition after intracranial stent deployment, traumatic or iatrogenic vessel injury assessment, and selected cases of intracranial aneurysm or dissection management where detailed vessel wall imaging informs therapy planning.

Coding Specifications

Modifier	Description	When to Use
`22`

Taxonomy Code	Specialty	Notes
207RH0000X	Neurological Surgery	Neuroendovascular surgeons/interventional neurosurgeons perform intracranial OCT in operative or hybrid settings.
2084P0800X	Diagnostic Radiology	Neuroradiologists perform OCT as part of cerebral angiography with imaging interpretation.
2084N0400X	Interventional Radiology	Interventional radiologists with neurointerventional training perform intracranial vascular OCT.
363L00000X	Vascular Surgery	Vascular surgeons with endovascular neurovascular expertise may perform OCT in select centers.
207X00000X	Neurology	Vascular neurologists involved in stroke teams may participate in decision-making; direct performance is less common.

ICD-10 Code	Description	Clinical Relevance
`I63.9`	Cerebral infarction, unspecified	Used for ischemic stroke where intracranial vessel imaging, including OCT adjunctively, may be used during endovascular therapy evaluation.
`I65.29`	Occlusion and stenosis of unspecified carotid artery	Applicable when intracranial vessel imaging is needed to assess stenosis extending into intracranial segments or guide intervention.
`I67.89`	Other specified cerebrovascular diseases	Covers various cerebrovascular pathologies (e.g., vessel dissection, non-atherosclerotic vasculopathies) requiring detailed vessel wall imaging.
`I72.9`	Aneurysm of unspecified site	Intracranial aneurysm cases may use OCT to assess parent vessel or stent apposition during endovascular repair.
`S06.2X9A`	Diffuse traumatic brain injury with loss of consciousness of unspecified duration, initial encounter	In traumatic vascular injury contexts, OCT can be used to evaluate iatrogenic or traumatic vessel disruption during intervention.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`36215`	Selective catheter placement, cerebral, carotid, or vertebral artery, with angiography when performed; catheter placement beyond the cervical carotid or vertebral artery	Often performed immediately prior to OCT imaging to gain access to the intracranial vessel and perform diagnostic angiography.
`36247`	Endovascular mechanical thrombectomy, intracranial, by use of thrombectomy device(s), single vessel	Performed in acute ischemic stroke cases where OCT may be used after thrombectomy to evaluate vessel integrity or stent placement.
`61645`	Repair of intracranial aneurysm	In procedures addressing aneurysm pathology, OCT may be used adjunctively to assess parent vessel or stent apposition; used as complementary imaging.
`37245`	Revascularization, endovascular, intracranial, including angioplasty and/or stent when performed; percutaneous transluminal angioplasty	When intracranial angioplasty/stenting is performed, OCT is used to evaluate lesion morphology and stent expansion/apposition.
`0500T`	Intracranial vessel imaging, high-resolution (example imaging add-on)	Other imaging add-on codes for intracranial vessel evaluation that may be reported in conjunction with OCT when applicable; codes must be distinct and appropriately supported.

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