MBS item

50475
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Single-stage multilevel orthopedic surgery for patients under 18 with diplegic cerebral palsy to correct crouch gait, involving tendon lengthening/transfer, knee extension osteotomy, patella reconstruction, tibial derotation, and foot stabilization p…

Category 3 · Therapeutic procedures[Group T8 · subgroup 15](/groups/T8)In hospital only (H)

Schedule fee$5,117.80

100% benefitGP, out of hospital—

85% benefitOut of hospital—

75% benefitIn hospital$3,838.35

The schedule fee for MBS item 50475 is $5,117.80. Medicare pays $3,838.35 (75%) for a privately admitted patient in hospital. Fee effective 1 July 2026.

Gap for what you charge
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Your fee$

In hospital (private)

Medicare pays$3,838.35

Fund pays (minimum)$1,279.45

Patient gap$0.00

Assumes a privately admitted patient whose hospital cover includes this service. The fund must pay at least 25% of the schedule fee. Pick a fund rate below to see its no-gap or known-gap split.

Item descriptor
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Single event multilevel surgery, for a patient less than 18 years of age with diplegic cerebral palsy, for the correction of crouch gait, including: (a) lengthening of a contracted muscle tendon unit or units by tendon lengthening, muscle recession, fractional lengthening or intramuscular lengthening; and (b) correction of muscle imbalance by transfer of a tendon or tendons; and (c) correction of flexion deformity at the knee by extension osteotomy of the distal femur including internal fixation; and (d) correction of patella alta and quadriceps insufficiency by patella tendon shortening or reconstruction; and (e) correction of tibial torsion by rotational osteotomy of the tibia with internal fixation; and (f) correction of foot instability by os calcis lengthening or subtalar fusion; conjoint surgery, principal specialist surgeon, including fluoroscopy and aftercare (H) (Anaes.) (Assist.)

[Explanatory notes and rules on MBS Online ↗](https://www9.health.gov.au/mbs/fullDisplay.cfm?type=item&q=50475)

Health fund and DVA rates
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Total fee each scheme recognises for this item in hospital.

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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=50475) before billing. This is a reference tool, not billing or financial advice.