CPT® Code 92130

Deleted

1. Indications

The procedure of tonography with water provocation is indicated for the assessment of intraocular pressure in patients suspected of having conditions that affect the eye's pressure regulation. The primary indications include:

• Glaucoma Diagnosis The procedure is utilized to help diagnose glaucoma, a condition characterized by increased intraocular pressure that can lead to optic nerve damage.
• Monitoring IOP Changes It is also indicated for monitoring changes in intraocular pressure over time, particularly in patients with a history of elevated IOP or those undergoing treatment for glaucoma.

2. Procedure

The procedure of tonography with water provocation involves several key steps that are critical for accurate measurement of intraocular pressure. These steps include:

• Baseline Pressure Measurement Initially, the patient is required to fast for a specified period. Following this fasting period, the physician measures the baseline intraocular pressure using a tonometric instrument. This measurement serves as a reference point for evaluating the changes in pressure that will occur after water intake.
• Water Provocation After obtaining the baseline measurements, the patient is instructed to drink a quart of water. This step is crucial as the ingestion of water is intended to provoke a physiological response that may lead to changes in intraocular pressure.
• Post-Water Pressure Measurement Once the patient has consumed the water, the physician again measures the intraocular pressure at specified intervals. These measurements are recorded to assess how the pressure changes in response to the water intake.
• Report Generation Finally, the physician reviews the recorded changes in intraocular pressure and compiles a written report detailing the findings. This report is essential for diagnosing conditions such as glaucoma and for determining the appropriate management strategies for the patient.

3. Post-Procedure

After the completion of the tonography with water provocation procedure, patients may be advised to resume their normal activities. However, it is important for the physician to review the findings with the patient, discussing any significant changes in intraocular pressure that were observed during the procedure. Depending on the results, further diagnostic testing or treatment options may be recommended. Patients should also be informed about any potential symptoms to monitor, such as changes in vision or eye discomfort, and advised to follow up with their healthcare provider as necessary.