MBS item 73363 ===== Single gene variant testing in a biological relative of a patient with a known monogenic condition to confirm segregation of a potentially causative variant identified in the patient, requested by a clinical geneticist or paediatrician; once per vari… Category 6 · Pathology services[Group P7](/groups/P7) Schedule fee$400.00 100% benefitGP, out of hospital— 85% benefitOut of hospital$340.00 75% benefitIn hospital$300.00 The schedule fee for MBS item 73363 is $400.00. Medicare pays $340.00 (85%) out of hospital, or $300.00 (75%) for a privately admitted patient in hospital. Fee effective 1 May 2020. Gap for what you charge ----------------------- Your fee$ Out of hospitalIn hospital (private) Medicare pays$340.00 Patient gap$60.00 Bulk billing means accepting $340.00 as full payment, with no gap and no extra charges. [Add incentives](/bulk-billing?item=73363) Item descriptor --------------- Testing of a person (the person tested) for the detection of a single gene variant for segregation analysis in relation to another person (the patient), if: the patient has a known phenotype of a suspected monogenic condition; and a service described in item 73358 or 73360 has identified a potentially causative variant for the patient; and the person tested is a biological parent or other biological relative of the patient; and a sample from the person tested has not previously been tested in relation to the patient for a service to which item 73359 applies; and the results of the testing of the person tested for this service are made available for the purpose of providing the detection for the patient; and the detection is: requested by a consultant physician practising as a clinical geneticist; or requested by a consultant physician practising as a specialist paediatrician, following consultation with a clinical geneticist; and the detection is not performed in conjunction with item 73361 or 73362 Applicable only once per variant per lifetime [Explanatory notes and rules on MBS Online ↗](https://www9.health.gov.au/mbs/fullDisplay.cfm?type=item&q=73363) Health fund and DVA rates ------------------------- Total fee each scheme recognises for this item in hospital. StateNSWVICQLDSAWATASACTNT 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=73363) before billing. This is a reference tool, not billing or financial advice.