Koa was diagnosed with a grade 2 heart murmur and mitral valve at 2 years of age and his murmur progressed to a grade 3 within 1 month. In 2022 his murmur was a grade 4 to 6, he died on the 17th of March 2023 due to heart and other health complications. Koa had OCD on his shoulder when he was 9 months old and his litter brother had the same surgery the day after.