UB04 Admission Hour Code 12: 12:00 PM - 12:59 PM

Introduction

Admission Hour Code 12 identifies the specific sixty-minute window during which a patient was formally admitted to the facility. This code is reported in Field 13: Admission Hour to document that the admission occurred between 12:00 PM and 12:59 PM.

Usage

This code is used by institutional providers, such as hospitals and skilled nursing facilities, to track the start of an inpatient stay or outpatient observation period. It applies to all patients processed through the admissions department during the noon hour, regardless of the clinical department or diagnosis.

Billing Impact

While Admission Hour Code 12 does not directly determine the DRG payment, accurate reporting is essential for medical necessity audits and calculating the correct length of stay for per-diem reimbursement.