MBS item 10938 ===== Automated bilateral perimetry testing for glaucoma patients at high risk of progression, performed by an optometrist, where two prior perimetry services were done in the past 12 months; limited to once per 12 months. Category 1 · Professional attendances[Group A10 · subgroup 1](/groups/A10) Schedule fee$76.25 100% benefitGP, out of hospital— 85% benefitOut of hospital$64.85 75% benefitIn hospital— The schedule fee for MBS item 10938 is $76.25. Medicare pays $64.85 (85%) out of hospital. Fee effective 1 July 2026. Gap for what you charge ----------------------- Your fee$ Out of hospital Medicare pays$64.85 Patient gap$11.40 Bulk billing means accepting $64.85 as full payment, with no gap and no extra charges. [Add incentives](/bulk-billing?item=10938) Extended Medicare Safety Net cap: $228.75 (300% of the schedule fee, up to $500.00). Once a patient reaches the EMSN threshold, the extra benefit for this item is 80% of their out-of-pocket cost, but no more than this cap. [How safety nets work](/guides/medicare-safety-nets) Item descriptor --------------- Full quantitative computerised perimetry (automated absolute static threshold), with bilateral assessment and report, where indicated by the presence of glaucoma with a high risk of clinically significant progression that: (a) is not a service involving multifocal multichannel objective perimetry; (b) is performed by an optometrist; and (c) is performed on a patient who has received two perimetry services to which item 10940 or 10941 applies in the previous 12 months other than a service associated with a service to which item 10916 or 10918 appliesApplicable once per patient (including any service to which item 10939 applies) in a 12-month period [Explanatory notes and rules on MBS Online ↗](https://www9.health.gov.au/mbs/fullDisplay.cfm?type=item&q=10938) Guides ------ - [How Medicare benefits work: schedule fees, 75%, 85% and 100%](/guides/how-medicare-benefits-work) - [Medicare safety nets explained: original and extended (EMSN) thresholds for 2026](/guides/medicare-safety-nets) - [In-hospital billing: the 75% benefit, the 25% fund benefit, and no-gap and known-gap schemes](/guides/in-hospital-billing-and-gap-cover) - [Bulk billing incentives and BBPIP explained: 2026 amounts by MM area](/guides/bulk-billing-incentives) - [The MBS multiple operation rule and surgical assistant fees](/guides/multiple-operation-rule) - [Assignment of benefit for bulk billing: the changes from 1 July 2026](/guides/assignment-of-benefit-2026) - [MBS telehealth rules: the eligible telehealth practitioner and phone items](/guides/mbs-telehealth-rules) - [GP chronic condition management plans: items 965 and 967 explained](/guides/chronic-condition-management-plans) - [Medicare billing compliance: claim time limits, records and the 80/20 rule](/guides/medicare-billing-compliance) Data source: [Australian Government Medicare Benefits Schedule](https://www.mbsonline.gov.au/) · Record updated 1 September 2026. Health fund rates come from each fund's published schedule. Verify item descriptors, rules and fees on [MBS Online](https://www9.health.gov.au/mbs/fullDisplay.cfm?type=item&q=10938) before billing. This is a reference tool, not billing or financial advice.