Exhibit 99.1 Full-Thickness Skin Defects (“FTSD”) Market Sizing – June 2023 Update Market Size Additional Market Opportunity (1) (1) Prior to FDA Approval with FDA Approved Expanded Indication of FTSD Traumatic Wounds Traumatic Wounds Surgical Wounds Data • Degloving (Open Wounds) 99,000 • Gun Shot Wounds • Muscle-only Flap pending Data • Crush 2,000 • Traumatic Hematoma • Laparotomy pending • Abrasion 5,000 • Abdominoplasty Dehiscence • Laceration 10,000 • Hidradenitis Suppurativa • Puncture 2,000 Chronic Wounds Surgical Excision – Cancer Surgical Wounds • DFU 21,000 • Cancer Excision 136,000 • Necrotizing Fasciitis 2,000 • VLU 42,000 • Amputation 6,000 • Non - Pressure Ulcers 51,000 • Fasciotomy 1,000 • Pressure Ulcers 14,000 ~127,000 Eligible Procedures > 264,000 Eligible Procedures Total Market Opportunity of Traumatic, Surgical, Cancer Excision & Chronic Wounds ~391,000 Annual Eligible Procedures (1) Market size derived from third-party claims reports and internal analysis based on skin graft CPT codes tied to diagnosis code of specified wound types. © 2023 AVITA Medical. All Rights Reserved.