Study guide
5.5 Problem Lists, Medical History & Immunization Tracking
NHA Certified Electronic Health Records Specialist CEHRS
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1 Introduction & Exam Overview
About the NHA CEHRS Exam The CEHRS Test Plan & How to Use This Guide
2 Chapter 1: Foundations — Medical Terminology, Health Care Settings & the EHR
1.1 Medical Terminology I: Roots, Prefixes, Suffixes & Combining Forms 1.2 Medical Terminology II: Body Systems, Directional Terms & Clinical Abbreviations 1.3 Health Care Systems, Settings, Personnel & Credentials 1.4 Parts of the EHR & Core Functions of the Electronic Record 1.5 Regulatory Agencies, Professional Standards & Population Health Concepts
3 Chapter 2: Non-Clinical Operations — Patient Registration & Scheduling
2.1 Patient Registration & Intake Workflows 2.2 Master Patient Index (MPI) & Demographic Management 2.3 Appointment Scheduling & Resource Management 2.4 Patient Communication, Portals & Front-Office Operations 2.5 Encounter Documentation: Face Sheets, Labels, Armbands & Check-Out
4 Chapter 3: Non-Clinical Operations — Health Record Administration & Archiving
3.1 Health Record Types, Hybrid Systems & Data Conversion 3.2 Record Retention, Storage & Archival Policies 3.3 Release of Information (ROI) & Authorization Procedures 3.4 Auditing, Chart Maintenance & Record Integrity
5 Chapter 4: Non-Clinical Operations — Data Sources, Devices & EHR User Support
4.1 Retrieving Patient Data from Internal Databases (Provider, Payer & Financial) 4.2 Acquiring Patient Data from External Sources 4.3 Importing from Integrated Devices & Managing EHR Hardware Inventory 4.4 Identifying, Reporting & Reconciling Data Discrepancies 4.5 End-User EHR Training, Competency & Training Documentation 4.6 Communicating Software Updates, IT Troubleshooting & Escalation
6 Chapter 5: Clinical Operations — Clinical Intake, Point-of-Care & Vitals
5.1 Clinical Intake, Rooming & Vital Signs Documentation 5.2 Chief Complaint, History of Present Illness (HPI) & ROS 5.3 Physical Exam Documentation & Clinical Notes Formatting (SOAP) 5.4 Allergy Documentation, Adverse Reaction Logging & Safety Alerts 5.5 Problem Lists, Medical History & Immunization Tracking 5.6 Patient Education Materials in the EHR & Scope of Practice
7 Chapter 6: Clinical Operations — Templates, Documentation Review & Data Retrieval
6.1 Developing Clinical Templates for Data Capture 6.2 Reviewing Clinical Documentation for Completeness & Accuracy 6.3 Point-of-Care EHR Support & Telehealth Workflows 6.4 Navigating the EHR to Retrieve Requested Patient Data 6.5 Securely Transmitting & Exchanging Patient Data
8 Chapter 7: Clinical Operations — CPOE, Orders & Decision Support
7.1 Computerized Provider Order Entry (CPOE) Fundamentals 7.2 Laboratory & Diagnostic Test Order Entry and Results Tracking 7.3 Medication Reconciliation, e-Prescribing & Formulary Checks 7.4 Clinical Decision Support Systems (CDSS) & Practice Guidelines 7.5 Clinical Care Coordination, Referrals & Discharge Planning
9 Chapter 8: Revenue Cycle & Financial Management
8.1 Insurance Verification, Eligibility (EDI 270/271) & Prior Authorization 8.2 Superbills, Charge Capture & Encounter Form Management 8.3 Coding Fundamentals for EHR: ICD-10-CM, CPT & HCPCS Level II 8.4 Claim Submission (EDI 837), Remittance (EDI 835) & Revenue Cycle 8.5 Providing Estimated Patient Costs & Good Faith Estimates 8.6 Patient Statements, Payment Collection & Balance Reconciliation
10 Chapter 9: Regulatory Compliance, HIPAA & Security
9.1 HIPAA Privacy Rule & Protected Health Information (PHI) 9.2 Minimum Necessary Rule, Permitted Uses & Patient Rights 9.3 HIPAA Security Rule: Administrative, Physical & Technical Safeguards 9.4 HITECH Act, Breach Notification Rule & Business Associate Agreements (BAAs) 9.5 Information Blocking Rules, 21st Century Cures Act & Compliance Audits 9.6 Allocating & Verifying EHR Access Controls and Role-Based Privileges 9.7 Educating Staff, Identifying Non-Compliant Behavior & Escalation 9.8 Abbreviation Policies, Professional Standards & EHR Downtime Procedures
11 Chapter 10: Data Management, Reporting & Health IT Standards
10.1 Health IT Interoperability: HL7, FHIR & Health Information Exchanges (HIE) 10.2 Standardized & Ad Hoc Financial Reports 10.3 Standardized & Ad Hoc Clinical Reports 10.4 Verifying Report Accuracy & Avoiding Common Reporting Errors 10.5 Quality Reporting, MIPS, Promoting Interoperability & Clinical Dashboards 10.6 Data Abstraction, Quality Improvement Studies & EHR System Security Management
5.5 Problem Lists, Medical History & Immunization Tracking
Key Takeaways Explain This Topic AI
An active problem list maintains a dynamic, centralized inventory of a patient's acute and chronic medical conditions encoded with standardized ICD-10-CM and SNOMED CT terminologies.
Continuous problem list reconciliation during clinical intake and transitions of care is a mandatory MIPS and Meaningful Use clinical quality metric.
Comprehensive medical history documentation encompasses Past Medical History (PMH), Past Surgical History (PSH), Family History (FH), and Social History (SH), including Social Determinants of Health (SDOH).
Federal law under the National Childhood Vaccine Injury Act mandates recording specific vaccine parameters in the EHR, including Vaccine Information Statement (VIS) edition dates, lot number, expiration, manufacturer, site, and route.
Bidirectional EHR integration with state Immunization Information Systems (IIS) enables real-time immunization forecasting and gap analysis for preventive care.
Last updated: August 2026
Problem Lists, Medical History & Immunization Tracking
Long-term health management relies on organized, accurate historical records. For Electronic Health Record Specialists, overseeing the active problem list , documenting comprehensive patient histories, and managing immunization registries ensures continuity of care across clinical settings and satisfies federal healthcare quality programs.
Active Problem List Management & Standardized Terminologies
The active problem list is a dedicated, real-time index in the EHR that summarizes a patient's significant acute illnesses, chronic diseases, injuries, and health factors. Unlike encounter-specific billing diagnoses, the problem list persists across the patient's entire medical record.
Clinical Terminology Standards:
SNOMED CT (Systematized Nomenclature of Medicine -- Clinical Terms) : The primary clinical terminology used within EHR problem lists. SNOMED CT offers granular clinical concepts (e.g., "Essential hypertension" concept ID 59621000 ).
ICD-10-CM (International Classification of Diseases, 10th Revision, Clinical Modification) : Used for diagnostic coding and billing. Modern EHRs cross-map SNOMED CT problem list concepts directly to ICD-10-CM codes (e.g., I10 ).
Problem List Lifecycle States:
Active : Ongoing chronic conditions (e.g., Type 2 Diabetes Mellitus, Asthma) or active acute problems requiring monitoring.
Inactive : Conditions that are not currently active but remain clinically relevant to the patient's history (e.g., History of gestational diabetes).
Resolved : Acute conditions that have completely healed or resolved (e.g., Acute appendicitis resolved post-appendectomy).
Reconciliation Requirement : Under CMS Quality Payment Program ( MIPS ) guidelines, clinical staff must perform Problem List Reconciliation at every encounter and transition of care, removing outdated items and adding newly diagnosed conditions.
Comprehensive Patient History Documentation
In addition to the active problem list, the EHR captures detailed historical context categorized into four structured modules:
History Module Scope & EHR Contents Clinical Relevance
Past Medical History (PMH) Prior medical diagnoses, chronic illnesses, hospitalizations, major illnesses. Identifies underlying risk factors and co-morbidities.
Past Surgical History (PSH) Prior surgical procedures, operations, dates, surgical facilities, and surgical complications. Informs current physical exam findings (scars) and anatomical changes.
Family Health History (FH) Health status, diseases, and causes of death of first-degree biological relatives (parents, siblings, children). Establishes genetic predisposition for conditions like cardiovascular disease or cancers.
Social History (SH) Lifestyle factors: tobacco/vaping use, alcohol intake, illicit drug use, occupation, diet, exercise, living situation. Guides preventive counseling, screening, and toxicology risk assessment.
Social Determinants of Health (SDOH) & ICD-10 Z-Codes
Modern EHRs place heavy emphasis on documenting Social Determinants of Health (SDOH) —the non-medical conditions in which people are born, grow, live, work, and age.
EHR specialists utilize standardized ICD-10 Z-codes (Z55–Z65) to capture SDOH data:
- Z59.00 — Homelessness, unspecified ( Z59.01 sheltered, Z59.02 unsheltered)
- Z59.41 — Food insecurity
- Z55.0 — Illiteracy and low-level literacy
Documenting SDOH in structured fields connects patients with community support resources and enables healthcare systems to address health equity.
Immunization Tracking, Forecasting & IIS Registry Integration
Immunization management in the EHR combines local administration tracking with public health reporting.
Bidirectional Registry Exchange (IIS)
State Immunization Information Systems (IIS) are confidential, computerized databases that record all immunization doses administered by participating providers within a geographic region.
Unidirectional Interface : EHR sends administration data out to the state registry.
Bidirectional Interface : EHR both submits local vaccine records and queries the state registry in real time to retrieve doses given by external clinics, pharmacies, or school health centers.
Clinical Decision Support Immunization Forecasters
EHR systems embed automated immunization forecasting engines that evaluate the patient's age, medical history, and past immunization dates against ACIP (Advisory Committee on Immunization Practices) schedules. The EHR automatically alerts staff when vaccines are due , overdue , or contraindicated .
Federal Vaccine Documentation Requirements (VIS & NCVIA Compliance)
Under the National Childhood Vaccine Injury Act (NCVIA) of 1986, federal law mandates that specific documentation parameters be recorded in the EHR every time a vaccine is administered:
Mandatory Vaccine Documentation Elements:
Vaccine Information Statement (VIS) Edition Date : The specific publication date printed at the bottom of the official CDC VIS handed to the patient/guardian.
Date VIS Provided : The exact date the VIS was given to the patient/guardian (which must occur prior to administration).
Date of Administration : Date vaccine was injected/given.
Vaccine Manufacturer & Trade Name (e.g., Pfizer-BioNTech, Merck Gardasil 9).
Vaccine Lot Number and Expiration Date (retrieved via barcode scanning of the vaccine vial).
Administration Site (e.g., Left deltoid, Right vastus lateralis) and Route (e.g., Intramuscular, Subcutaneous, Intranasal).
Name, Title, and Credentials of the administering healthcare professional.