MBS item 73430 ===== FISH testing of tumour tissue to detect NTRK gene fusion in children under 18, mammary analogue secretory carcinoma of salivary gland, or secretory breast carcinoma, when requested by a specialist to determine eligibility for Trk inhibitor therapy; o… 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 73430 is $400.00. Medicare pays $340.00 (85%) out of hospital, or $300.00 (75%) for a privately admitted patient in hospital. Fee effective 1 July 2022. Gap for what you charge ----------------------- Your fee$ 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=73430) Item descriptor --------------- Fluorescence in-situ hybridisation (FISH) test of tumour tissue from a patient with locally advanced or metastatic solid tumour, if: (a) the tumour is at risk of being caused by a neurotrophic receptor tyrosine kinase (NTRK) gene fusion as determined by either: (i) occurring in a child less than 18 years of age; or (ii) being mammary analogue secretory carcinoma of the salivary gland; or (iii) being secretory breast carcinoma; and (b) the test is requested by a specialist or consultant physician to determine if requirements relating to NTRK gene fusion status for access to a tropomyosin receptor kinase (Trk) inhibitor under the Pharmaceutical Benefits Scheme are fulfilled This item cannot be claimed if item 73433 has been claimed for the same patient during the same cancer diagnosis Applicable only once per cancer diagnosis [Explanatory notes and rules on MBS Online ↗](https://www9.health.gov.au/mbs/fullDisplay.cfm?type=item&q=73430) 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=73430) before billing. This is a reference tool, not billing or financial advice.