0198T Ocular blood flow measure
Also known as: ocular blood flow measurement, OBF analysis, ocular hemodynamics testing
Measurement of ocular blood flow by repetitive intraocular pressure sampling, with interpretation and report. Category III code for non-invasive assessment of ocular hemodynamics through IOP fluctuation analysis.
In Plain Language
eye blood flow test; measuring blood circulation in the eye
Clinical Context
Used for non-invasive measurement of ocular blood flow through repetitive intraocular pressure sampling. Evaluates pulsatile ocular blood flow which may be relevant in glaucoma, ocular ischemic syndrome, and assessment of optic nerve head perfusion.
RVU Information
CPT 0198T does not have a physician work RVU assigned by CMS. Category III codes for emerging technology do not receive RVU assignments. Reimbursement is negotiated with individual payers.
Billing & Documentation
Category III codes are temporary codes for emerging technology, services, and procedures. They are not assigned RVU values by CMS. Coverage and reimbursement vary by payer — check with individual insurers before billing. These codes sunset after 5 years if not converted to Category I.
Specialties
Frequently Asked Questions
What is CPT code 0198T?
CPT 0198T (Ocular blood flow measure) is a Category III code. Measurement of ocular blood flow by repetitive intraocular pressure sampling, with interpretation and report. Category III code for non-invasive assessment of ocular hemodynamics through IOP fluctuation analysis.
Is 0198T a permanent CPT code?
No — 0198T is a Category III temporary code for emerging technology. It may be converted to a permanent Category I code if widely adopted. Category III codes expire after 5 years without renewal.
When is CPT 0198T used?
Used for non-invasive measurement of ocular blood flow through repetitive intraocular pressure sampling. Evaluates pulsatile ocular blood flow which may be relevant in glaucoma, ocular ischemic syndrome, and assessment of optic nerve head perfusion.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.