The Health Effect Classification System allows for the identification ofvarious HealthEffects, such as disease, disorder, symptom, condition and injury, whichhappen to bodyparts of humans and other living organisms. The critical factor is therecognition that it isthe body part that is unique while the affecting Health Effect can be onmultiple bodyparts. Moreover, Health Effects evolve, are discovered or reclassified as newinformationis obtained but the Body Parts are finite and constant.