Data Content, Structure & Governance
This is the largest domain on the RHIT exam and the heart of the health information technician's job: making sure the health record contains the right content, is structured and identified correctly, and is governed as a trustworthy asset. Mastery here means knowing documentation standards, record formats, the master patient index, data quality, and retention rules cold.
Record content and documentation standards
Every health record must meet the documentation requirements of CMS Conditions of Participation, the Joint Commission, and state licensing law. Core inpatient components include the history and physical (H&P, due within 24 hours of admission and before surgery), physician orders, progress notes, operative reports, and the discharge summary. Entries must be legible, dated, timed, and authenticated (signed) by the responsible provider; verbal orders must be countersigned within the required timeframe. Records may be organized source-oriented (grouped by department), problem-oriented (POMR, using a problem list and SOAP notes), or integrated. HIM staff perform quantitative analysis (is every required element present and signed?) and qualitative analysis (is the documentation consistent and complete?).
The master patient index and patient identity
The master patient index (MPI) is the permanent link between a patient and their medical record number, and it is the foundation of record integrity. Three classic identity errors are the duplicate (one patient, two numbers in the same facility), the overlay (two different patients sharing one number — the most dangerous, because it mixes clinical data), and the overlap (one patient with different numbers across facilities in an enterprise MPI). Clean MPI data prevents duplicate testing, medication errors, and billing problems, which is why identity management and record-matching algorithms are a governance priority.
Data quality and record retention
The AHIMA data quality management model defines characteristics such as accuracy (the value is correct), completeness (all required data is present), consistency, timeliness (available when needed), and granularity (level of detail). HIM applies these to auditing and to designing capture screens. Retention is set by taking the longest applicable requirement among state law, Medicare, and accreditation standards; for minors, retention typically runs until the age of majority plus the state statute of limitations. Destruction must be documented (method, date, witness) to protect the organization legally.