Understanding Health Information Management and Its Core Functions
An accurate health record has to be useful to more people than the clinician who created it. Patients, coders, registrars, auditors, and billing staff may each need a reliable piece of the same encounter, with access and amendment rules that differ by role.
Health Information Management (HIM) is the discipline concerned with the quality, integrity, accessibility, protection, and appropriate use of health information throughout its lifecycle. HIM employees may work behind the scenes, but errors in the information they maintain can reach clinical teams, revenue cycle departments, patients, auditors, and researchers.
Health information management sits at several crossroads: record creation, authentication, access, corrections, retention, disclosure, and the documentation billing depends on. Following the record through those responsibilities makes the connections easier to see.
The Scope of Health Information Management
AHIMA describes HIM as the practice of acquiring, analyzing, and protecting medical information. It combines healthcare knowledge, business processes, information technology, and governance. The exact department structure varies: some organizations place coding, release of information (ROI), clinical documentation integrity (CDI), patient identity, and record completion in HIM; others distribute these functions among specialized teams. [1]
These functions are related, but HIM isn't simply medical coding, and an electronic health record (EHR) is not itself an HIM department. HIM includes the people, standards, rules, and review processes governing the information in those systems.
How the Health Record Moves Through Its Lifecycle
A useful way to understand HIM is to follow information from its creation through eventual disposition. At each point, the organization needs a way to know what the record is, who can modify it, how it's used, and whether it remains reliable.
A record’s age doesn't, by itself, make it irrelevant. Historical information may be needed for continuity of care, claims research, an access request, or legal proceedings. Likewise, a record should not be destroyed merely because a system has migrated to a newer platform.
Core Terminology and Record Types
In particular, a “legal health record” is often an organizational disclosure construct, while the HIPAA designated record set is a regulatory definition relevant to individual access. Treating them as interchangeable can lead to an improperly limited response. [2]
Who Works With HIM and When
HIM workflows touch nearly every phase of patient care and reimbursement. Registration and patient identity teams establish accurate record associations. Clinicians create and authenticate documentation. Coding and CDI teams review information supporting codes and reimbursement. Billing teams depend on consistent identifiers, diagnoses, and supporting records. Compliance, privacy, legal, and IT teams may participate in requests, system changes, or incident investigations.
A hospital might route a missing signature to a provider completion queue, a suspected chart overlay to a patient identity specialist, and a subpoena to ROI or legal counsel. Assigning the issue correctly matters as much as detecting it. A payment poster, for example, may recognize that information belongs to the wrong account, but that does not authorize independently moving clinical documentation.
Patient Identity and Record Integrity
Patient matching connects information to the correct person within or between systems. ONC identifies combinations of demographic details, such as names, birth dates, addresses, and telephone numbers, as important matching inputs. A matching algorithm may generate candidate records, but staff must follow verified procedures before combining or separating patient information. [3]
Duplicate records and overlays are different problems
Duplicate: Separate records may belong to the same individual. Information is fragmented across those records. Overlay: Information from different people is incorrectly associated with one record. The latter may create immediate patient-safety, privacy, and billing concerns. Neither should be “fixed” through an unreviewed merge.
Practical investigation: two similar patient records
A scheduler finds two records under “Maria Rivera,” with the same month and day of birth but different years. First preserve the original identifiers and compare approved identity evidence, encounter histories, and other available records. Determine whether the entries truly concern the same individual, a demographic error, or different patients. Place any required workflow hold and send the case to the authorized patient identity team. After an approved correction, verify that clinical information, linked accounts, and downstream interfaces reflect the validated result. Do not merge based on name similarity alone.
Documentation Completion, Amendments, and Data Integrity
Health records should reflect what was actually documented by the responsible clinician or authorized individual. HIM may monitor missing signatures, incomplete reports, outstanding deficiencies, and appropriate authentication, but should not create clinical statements to satisfy an edit or billing deadline.
For Medicare-participating hospitals, 42 CFR 482.24 includes requirements for accurate, prompt, accessible records and for entries that are legible, complete, dated, timed, and authenticated. This is a hospital-specific condition of participation, not a universal rule prescribing the same documentation workflow in every care setting. [4]
How correction differs from alteration
A technically successful edit doesn't establish that a medical record remains reliable. A correction must leave a defensible history of what was changed, who authorized it, and what supporting evidence was reviewed, according to the organization’s policies and applicable requirements.
Release of Information and the Patient’s Right of Access
ROI is a coordinated verification and disclosure process. Staff determine who is requesting information, what is requested, the applicable legal basis, which records are responsive, and whether any restriction or exception applies. The process isn't identical for every requester.
Under HIPAA, individuals generally have a right to access their PHI in designated record sets held by covered entities, subject to limited exceptions. The required response ordinarily must occur within 30 calendar days of receipt, with one permitted extension of up to 30 additional calendar days when the rule’s conditions are met. More protective state access rules may require faster action. An unpaid medical bill is not a valid reason to deny an individual’s HIPAA access request. [2]
Practical example: a request for billing and treatment records
A patient requests “everything used to determine my charges and care.” The ROI reviewer should not assume that the clinical EHR printout alone covers the request. The designated record set may include qualifying claims, billing, payment, and other decision-making records maintained elsewhere. Identify responsive systems, verify identity and scope, coordinate fulfillment, and document the response. HHS explains that access rights are not confined to paper medical records or EHR clinical notes. [2]
Retention, Archives, and Authorized Disposition
Record-retention rules depend on the provider type, jurisdiction, program, record type, age of patient, and additional legal obligations. HIPAA’s Privacy Rule does not itself set a universal medical-record retention period. HHS expressly distinguishes record-retention requirements from HIPAA’s separate documentation and safeguarding obligations. [5]
For hospitals covered by 42 CFR 482.24, the federal condition of participation requires retention of medical records for at least five years in original or legally reproduced form. Longer state rules, other federal program requirements, contractual rules, or holds may control in particular circumstances. This five-year standard should not be treated as permission to destroy every record at five years. [4]
Practical example: planned destruction of legacy records
A facility plans to delete records after a system migration. HIM should verify the applicable retention schedule and identify any special requirements for minors, regulated records, litigation holds, unresolved requests, or program obligations. Confirm that retained copies remain usable and retrievable, document approvals, and ensure secure destruction when eligible. Don't equate a successful data migration with authorization to destroy all source data.
HIM Systems, Data Standards, and Interoperability
Information blocking is a related but distinct regulatory topic. Federal rules address practices by specified actors that are likely to interfere with access, exchange, or use of electronic health information, unless required by law or covered by a regulatory exception. An unavailable portal function is not automatically proof of information blocking, and the exceptions require specific conditions. [6]
Investigating Common HIM Exceptions
Investigations should capture the observed problem, the verified records, potential impact, authorized owner, corrective action, and evidence that the result was tested. A recurring problem should be evaluated for a process or system cause, not simply corrected one chart at a time.
Worked Cross-Department Case: One Document, Two Accounts
Illustrative scenario: A radiology report appears under encounter A, while the billing system shows the related service under encounter B. Both encounters belong to a patient with the same name, but the visit dates differ.
The goal isn't to force the two systems to match through arbitrary edits. Staff need to establish which source record is accurate, correct the verified error using approved procedures, and confirm that clinical documentation and financial information remain linked to the correct encounter.
How HIM Supports the Revenue Cycle
Accurate information supports eligibility checks, clinical documentation, code selection, compliant billing, claim review, appeals, and patient account resolution. HIM does not determine every payment amount, but it helps preserve the records required to evaluate many financial outcomes.
- A claim rejection attributed to patient identity may require MPI investigation rather than repeated claim resubmission.
- A medical necessity denial may require access to existing documentation or a compliant provider clarification, not retroactive invention of evidence.
- An audit or appeal may depend on whether the correct record can be retrieved and authenticated.
- A patient billing dispute may require records contained in the HIPAA designated record set, including financial records.
- A records migration or document indexing failure can affect both care and revenue cycle work.
These connections are foundational. More detailed treatment of coding compliance, documentation integrity, regulatory audits, and health information careers belongs in their respective guides.
A Practical HIM Review Checklist
- ☐ Verify the patient and encounter before editing or releasing information.
- ☐ Confirm the original source, document type, and current status.
- ☐ Determine which team owns the problem and the authorized correction.
- ☐ Preserve required version and audit history.
- ☐ Review applicable privacy, access, and disclosure conditions.
- ☐ Identify any statutory, program, state, or organizational timing requirements.
- ☐ Check whether other linked records, interfaces, claims, or reports are affected.
- ☐ Document the review, escalation, resolution, and verification.
- ☐ For repeated exceptions, identify whether a broader process or system investigation is warranted.
References and Further Learning
The references below support specific regulatory and professional concepts in this guide. Apply each source within its stated scope, and check current state law, program requirements, and organizational policies before using it operationally.
References
Additional Learning
Educational Disclaimer
Revenue Cycle Uncovered is an independent educational resource. Content is provided for general informational purposes and does not represent the policies, practices, or positions of any employer or organization. Workflows, payer requirements, regulations, and operational practices may vary. Information should be independently verified when applied to specific situations.