Purpose: Diabetic foot disease (DFD) is highly prevalent and progression to amputation is common. There is a lack of large epidemiological studies of DFD in Australia and New Zealand, and limited use of wound staging scores in research and clinical practice. This was a bi-national study to prospectively report the presentation, management, and outcomes of DFD. Methodology: This was a multicentre observational study. Patients with DFD were recruited as inpatients or from diabetic foot clinics from 2020-2022. Demographic, clinical, and wound data were collected, with 12-months of follow-up. Primary outcomes were time to wound healing, major amputation, amputation-free survival, and mortality. Kaplan-Meier analysis was used to assess time to wound healing. Results: 276 patients (384 limbs) were recruited (median 67yrs, 75% male) and 54% had PAD. WIfi breakdown was 1(48%), 2(20%), 3(20%), 4(13%). 49% of wounds were infected, 97% ulcerated, and 19% had gangrene. 36% underwent revascularisation and 95% received antibiotics. 71% of wounds healed, with median time by WIfI stage 1-4 of 15,19,24, or 33 weeks respectively. Predictors of poor healing were higher WIfI, PAD, CVD, hyperlipidaemia, and frailty (P<0.05). At 1yr, 17% underwent a major amputation, which was significantly associated with higher WIfI (P<0.001). Higher WIfI conferred worse amputation-free survival (P<0.001). Overall mortality was 15%, which increased with WIfi (P<0.001). Conclusion: This bi-national study reports one-year outcomes of DFD. DFD continues to be a major health issue in Australasia. WIfI stage is strongly associated with healing, major limb amputation, amputation-free survival, and mortality, supporting its use in practice.