Final answer:
In medical terminology, MCC stands for Major Complication/Comorbidity, which is a term used in hospital billing and coding to indicate a significant secondary diagnosis.
Step-by-step explanation:
The acronym MCC in medical terminology stands for Major Complication/Comorbidity. This term is often used in the context of hospital billing and coding, where it indicates that a patient has a secondary diagnosis that significantly affects their treatment, length of stay, or resource usage. It is important for the coding to be accurate as it has a direct impact on the classification of cases, which in turn influences hospital reimbursement.