Field 18 - Hospitalization Dates Related to Current Services
The “Hospitalization Dates Related to Current Services” refers to an inpatient stay and indicates the admission and discharge dates associated with the service(s) on the claim.
NUCC INSTRUCTIONS: Enter the inpatient 6-digit (MM│DD│YY) or 8-digit (MM│DD│YYYY) hospital admission date followed by the discharge date (if discharge has occurred). If not discharged, leave discharge date blank. This date is when a medical service is furnished as a result of, or subsequent to, a related hospitalization.
MEDICARE INSTRUCTIONS - Enter either an 8-digit (MM | DD | CCYY) or a 6-digit (MM | DD | YY) date when a medical service is furnished as a result of, or subsequent to, a related hospitalization.