What Is Health Information Management?

Health information management (HIM) is the professional practice concerned with the acquisition, analysis, organization, protection, and use of health data throughout its lifecycle within healthcare organizations. The field encompasses both the technical and administrative dimensions of managing patient records, ensuring that clinical information is accurate, accessible, secure, and suitable for the multiple purposes it serves: direct patient care, regulatory compliance, billing, quality improvement, and population health research. HIM draws on medical terminology, classification science, information technology, and health law to sustain the integrity of health data from its initial capture through long-term archival or destruction.

As documented in research on the evolution of health information management published in PMC, HIM emerged as a profession focused on paper-based medical record organization and diagnostic coding. The adoption of electronic health records has not diminished the core skills the profession requires; it has shifted their application toward data governance, analytics, and information security at an organizational scale.

Health Records and Documentation

At its foundation, HIM governs the processes by which patient encounters are documented, structured, and maintained. This includes defining what information must be captured for a given encounter type, who is authorized to add or modify entries, how long records must be retained under applicable law, and what constitutes a complete and legally defensible health record. Transcription services, documentation improvement programs, and release-of-information workflows all fall within this scope. The shift to electronic documentation has made record completeness more measurable but has also introduced new challenges around copy-forward documentation, template-based note generation, and audit trail maintenance.

Clinical Coding and Classification

A central function of HIM is the translation of clinical documentation into standardized codes for diagnoses, procedures, and services. ICD-10-CM and ICD-10-PCS serve as the primary classification systems in the United States for diagnosis and inpatient procedure coding; CPT codes cover outpatient procedures and professional services. These coded outputs drive insurance reimbursement, support epidemiological research, and feed national health statistics. The American Health Information Management Association, the principal professional society for HIM practitioners, establishes the ethical standards, certification criteria, and competency frameworks that govern this coding function.

Information Governance and Data Quality

Contemporary HIM extends well beyond records and coding into enterprise information governance: the policies, structures, and accountability frameworks that ensure health data is trustworthy, consistent, and appropriately protected across an organization. AHIMA's Information Governance Adoption Model identifies ten organizational competencies, including data governance, privacy and security safeguards, regulatory compliance, and analytics readiness. Data quality dimensions relevant to HIM include accuracy, completeness, timeliness, and consistency across systems. As health systems increasingly rely on clinical data for quality measurement and population health analytics, the integrity of underlying records directly shapes the validity of the insights derived from them. The AHIMA Information Governance Principles for Healthcare provides the industry-standard framework guiding these governance activities.

Applications

Health information management has applications in a wide range of fields, including:

• Hospital revenue cycle management and medical billing compliance
• Clinical quality reporting and accreditation programs
• Disease registries and cancer surveillance programs
• Insurance claims adjudication and fraud detection
• Health services research and outcomes analysis
• Medical record litigation support and legal compliance