coding with meddra · out. 5. core slide. meddra structure. system organ class (soc) (27) ......
TRANSCRIPT
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MedDRA Coding Workshop8 November 2018Heather Morrison – Health CanadaJane Knight – MedDRA MSSO
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Session Overview
• MedDRA background, structure and scope• Principles of Coding• MedDRA Term Selection: Points to Consider
document• Examples and Hands-on coding exercises
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What is MedDRA?
Med = MedicalD = Dictionary for
R = RegulatoryA = Activities
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MedDRA Definition
MedDRA is a clinically-validated international medical terminology used by regulatory authorities and the regulated biopharmaceutical industry. The terminology is used through the entire regulatory process, from pre-marketing to post-marketing, and for data entry, retrieval, evaluation, and presentation.
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Scope of MedDRA
Medical conditionsIndications
Investigations (tests, results)Medical and surgical proceduresMedical, social, family history
Medication errorsProduct quality issuesDevice-related issuesProduct use issues
Pharmacogenetic termsToxicologic issues
Standardized queries
Not a drug dictionary
Not an equipment, device,diagnostic product dictionary
Clinical trial study design terms
Patient demographicterms
Frequency qualifiers
Numerical values forresults
Severity descriptors
INOUT
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MedDRA Structure
System Organ Class (SOC) (27)
High Level Group Term (HLGT) (337)
High Level Term (HLT) (1,737)
Preferred Term (PT) (23,389)
Lowest Level Term (LLT) (79,507)
MedDRA Version 21.1 6
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System Organ Classes
• Blood and lymphatic system disorders• Cardiac disorders• Congenital, familial and genetic disorders• Ear and labyrinth disorders• Endocrine disorders• Eye disorders• Gastrointestinal disorders• General disorders and administration site
conditions• Hepatobiliary disorders• Immune system disorders• Infections and infestations• Injury, poisoning and procedural
complications • Investigations• Metabolism and nutrition disorders
• Musculoskeletal and connective tissue disorders
• Neoplasms benign, malignant and unspecified (incl cysts and polyps)
• Nervous system disorders• Pregnancy, puerperium and perinatal
conditions• Product issues• Psychiatric disorders• Renal and urinary disorders• Reproductive system and breast disorders• Respiratory, thoracic and mediastinal disorders• Skin and subcutaneous tissue disorders• Social circumstances• Surgical and medical procedures• Vascular disorders
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Non-Current Terms
• Flagged at the LLT level in MedDRA• Not recommended for continued use• Retained to preserve historical data for
retrieval and analysis• Terms that are vague, ambiguous, out-
dated, truncated, or misspelled• Terms derived from other terminologies
that do not fit MedDRA rules
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MedDRA Codes
• Each MedDRA term assigned an 8-digit numeric code starting with “1”
• The code is non-expressive• Codes can fulfill a data field in various
electronic submission types (e.g., E2B)• New terms are assigned sequentially
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Codes and Languages
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A Multi-Axial Terminology
• Multi-axial = the representation of a medical concept in multiple SOCs– Allows grouping by different classifications– Allows retrieval and presentation via different data sets
• All PTs assigned a primary SOC– Determines which SOC will represent a PT during
cumulative data outputs– Prevents “double counting”– Supports standardized data presentation– Pre-defined allocations should not be changed by
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SOC = Respiratory, thoracic andmediastinal disorders(Secondary SOC)
HLGT = Respiratory tract infections
HLT = Viral upper respiratorytract infections
HLT = Influenza viral infections
HLGT = Viral infectious disorders
SOC = Infections and infestations
(Primary SOC)
PT = Influenza
A Multi-Axial Terminology (cont)
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Rules for Primary SOC Allocation
• PTs represented in only one SOC are automatically assigned that SOC as primary
• PTs for diseases, signs and symptoms are assigned to prime manifestation site SOC
• Congenital and hereditary anomalies terms have SOC Congenital, familial and genetic disorders as Primary SOC
• Neoplasms terms have SOC Neoplasms benign, malignant and unspecified (incl cysts and polyps) as Primary SOC – Exception: Cysts and polyps have prime manifestation
site SOC as Primary SOC• Infections and infestations terms have SOC Infections
and infestations as Primary SOC13
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Primary SOC Priority
If a PT links to more than one of the exceptions, the following priority will be used to determine primary SOC:
1st: Congenital, familial and genetic disorders2nd: Neoplasms benign, malignant and
unspecified (incl cysts and polyps)3rd: Infections and infestations
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A Multi-Axial Terminology (cont)
PTs in the following SOCs only appear in that particular SOC and not in others, i.e., they are not multi-axial
• Investigations• Surgical and medical procedures• Social circumstances
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Can You Select the Primary SOC for This PT?
PT HLT HLGT SOCCongenital HIV infection
Viral infections congenital
Infections and infestations congenital
Congenital, familial and genetic disorders
Congenital neonatal infections
Neonatal and perinatal conditions
Pregnancy, puerperium and perinatal conditions
Retroviral infections
Viral infectious disorders
Infections and infestations
Acquired immunodeficiency syndromes
Immunodeficiency syndromes
Immune system disorders
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MSSO’s MedDRA Browsers
• MedDRA Desktop Browser (MDB)– Download MDB and release files from MedDRA website
• MedDRA Web-Based Browser (WBB)– https://tools.meddra.org/wbb/
• Features– Both require MedDRA ID and password – View/search MedDRA and SMQs– Support for all MedDRA languages– Language specific interface– Ability to export search results and Research Bin to local
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MedDRA Browser Demonstration
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Assessing the Reported Information
• Consider what is being reported. Is it a:– Clinical condition - Diagnosis, sign or symptom?– Indication?– Test result?– Injury?– Procedure?– Medication error?– Product use issue?– Product quality issue?– Social circumstance?– Device issue?– Procedural complication?
– Is it a combination of these?
The type of report will influence the way you search for a suitable LLT. It may indicate in which SOC you expect to find the closest match.
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MedDRA Browsing Tips• First, try using actual words from reporter• Use “top-down” and “bottom-up” approaches• Look at the “neighbors” and check the hierarchy• Consider synonyms, e.g., “Liver” and “Hepatic”• Use word stems, e.g., “Pancrea”• Use available resources for difficult verbatim
terms (web search, medical dictionaries, colleagues)
• Become familiar with MedDRA Concept Descriptions
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Exercise 1
The patient states she has been experiencing weakness in her legs.
_______________ LLT → _______________ PT
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Exercise 2
Lab results indicate an increase in erythrocytes.
_______________ LLT → _______________ PT
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Exercise 3
Drug was contaminated with Staphylococcus.
_______________ LLT → _______________ PT
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Exercise 4
A six year old boy was admitted for toxicity after accidentally ingesting the remaining antihypertensive tablets in the bottle.
_______________ LLT → _______________ PT_______________ LLT → _______________ PT
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Exercise 5
The patient requires a revision of his hip replacement because the femoral stem has worked loose within the bone.
_______________ LLT → _______________ PT
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Importance of Coding
• Accuracy• Consistency• Transparency• Standardisation• Analysis• Evaluation
• Patient Safety
}
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Principles of Coding – 1
• Select the closest matching LLT to capture all the reported information
VT •Thrush in mouth
LLT •Thrush oral
PT •Oral candidiasis27
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Principles of Coding - 2
• Do not add information
VT •Tachycardia (standing)
LLT •Tachycardia
PT •Tachycardia28
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Principles of Coding - 3
• Do not interpret or diagnose
VT• Low Hb
LLT• Haemoglobin low
PT• Haemoglobin decreased
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Principles of Coding - 4
• Use medical judgment and references
VT •Syringitis
LLT •Eustachian salpingitis
PT •Otosalpingitis30
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Principles of Coding - 5
• Check the MedDRA hierarchy
VT• Pyogenic cholecystitis
LLT• Cholecystitis suppurative
PT• Cholecystitis infective
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Principles of Coding - 6
• Know how to handle combination events
VT• Ulcer on big toe due to
diabetes
LLT• Diabetic foot ulcer
PT• Diabetic foot
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Principles of Coding – 6 (Contd.)
• Know how to handle combination events
VT• Significant mitral and tricuspid
regurgitation
LLT• Mitral regurgitation• Tricuspid regurgitation
PT• Mitral valve incompetence• Tricuspid valve incompetence
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Principles of Coding - 7
• Seek clarification if unclear or ambiguous
VT •Synechiae
LLT •Ill-defined disorder
PT •Ill-defined disorder34
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• Provides term selection advice for industry and regulatory purposes
• Objective is to promote accurate and consistent term selection to facilitate a common understanding of shared data
• Recommended to be used as basis for individual organization’s own coding conventions
MedDRA Term Selection: Points to Consider (MTS:PTC)
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MedDRA Term Selection: PTC (cont)
• Developed by a working group of the ICH Management Committee
• Updated twice yearly with each MedDRA release• Available on MedDRA and JMO websites
– English and Japanese– Word (“clean” and “redlined”), PDF, HTML formats– “Redlined” document identifies changes made from
previous to current release of document
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General Term Selection Principles
• Quality of Source Data• Quality Assurance• Do Not Alter MedDRA• Always Select a Lowest Level Term• Select Only Current Lowest Level Terms• When to Request a Term• Use of Medical Judgment in Term Selection• Selecting More than One Term• Check the Hierarchy• Select Terms for All Reported Information, Do Not
Add Information
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Term Selection Points
• Diagnoses and Provisional Diagnoses with or without Signs and Symptoms
• Death and Other Patient Outcomes• Suicide and Self-Harm• Conflicting/Ambiguous/Vague Information• Combination Terms• Age vs. Event Specificity• Body Site vs. Event Specificity• Location-Specific vs. Microorganism-Specific Information• Modification of Pre-existing Conditions• Exposures During Pregnancy and Breast Feeding• Congenital Terms• Neoplasms• Medical and Surgical Procedures• Investigations
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Term Selection Points (cont)
• Medication Errors, Accidental Exposures and Occupational Exposures
• Misuse, Abuse and Addiction• Transmission of Infectious Agent via Product• Overdose, Toxicity and Poisoning• Device-related Terms• Drug Interactions• No Adverse Effect and “Normal” Terms• Unexpected Therapeutic Effect• Modification of Effect• Social Circumstances• Medical and Social History• Indication for Product Use• Off Label Use• Product Quality Issues
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MTS:PTC Points of Note
• In some cases with more than one option for selecting terms, a “preferred option” is identifiedbut this does not limit MedDRA users to applying that option. Organizations should be consistent in their choice of option.
• Section 4.1 – Versioning (Appendix)– 4.1.1 Versioning methodologies– 4.1.2 Timing of version implementation
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Example: Infections• In most cases MedDRA terms capture both site and pathogen, but not
always• Excerpt from MedDRA Term Selection: Points to Consider
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Example: Diagnosis and Signs/Symptoms
• Diagnosis reported with/without signs and symptoms• Excerpt from MedDRA Term Selection: Points to Consider
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Example: Combination Reports
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Example: Combination Reports
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Example: Combination Reports
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Terms for Discussion
Haemorrhagic stroke on left side with right hemiplegia, severe aphasia and dysphagia
Gastric ulcer with indigestion, abdo pain, fainting, black diarrhoeaand vomiting blood
Post-menopausal incontinence
Displaying symptoms of possible meningitis, stiff neck, rash, fever, photophobia & depression
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How do we code this…?
Pancreatitis due to CMV infection
A. PancreatitisB. CMV infectionC. Cytomegalovirus pancreatitisD. Pancreatitis AND CMV Infection
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How do we code this…?
Citrobacter conjunctivitis
A. ConjunctivitisB. Citrobacter infectionC. Conjunctivitis AND Citrobacter
infectionD. Conjunctivitis bacterial
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How do we code this…?
Haemophilus influenzae identified from bronchoscopy specimen
A. Haemophilus influenzae infectionB. Haemophilus influenzae test positiveC. Post procedural infectionD. Bronchoscopy abnormal
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53
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How do we code this…?
Hip pain with trochanteric bursitis
A. Hip painB. Trochanteric bursitisC. Hip pain AND Trochanteric bursitisD. Bursitis infective
54
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How do we code this…?
Recurring c. difficile infection with diarrhoea
A. Clostridium difficile infection recurrenceB. C.difficile diarrhoeaC. Clostridium difficile test positiveD. Intestinal infection due to clostridium
difficile56
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How do we code this…?
Upper back pain and also low back pain
A. Upper back painB. Low back painC. Upper back pain AND Low back painD. Back pain
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How do we code this…?
Unable to hear fully after contracting mumps as a baby
A. Hearing impairedB. Hereditary hearing disorderC. Mumps deafnessD. Mumps
60Post-meeting note: This slide has been updated with the correct answer, as highlighted by the audience during the presentation
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How do we code this…?
Turned very greasy
A. Ill-defined disorderB. Unevaluable eventC. Skin greasyD. Unevaluable reaction
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How do we code this…?
Became color blind in adolescence
A. Color blindnessB. Blindness colorC. Colour blindness acquiredD. Color blindness acquired
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How do we code this…?
Infection after surgery
A. InfectionB. Postoperative wound infection C. Surgical wound infectionD. Postoperative infection
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How do we code this…?
Had MI
A. Myocardial infarctionB. Ill-defined disorderC. MID. Unevaluable event
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How do we code this…?
Death from cerebral haemorrhage
A. Sudden death B. Death C. Cerebral haemorrhageD. Death AND Cerebral haemorrhage
70
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Useful Resources
• MedDRA Concept Descriptions• MedDRA Introductory Guide• MedDRA Term Selection: Points to Consider• MTS:PTC Companion Document• MedDRA Website• MedDRA Version Reports
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Concept Descriptions
• Descriptions of how a concept is interpreted, used, and classified in MedDRA
• Not a definition• Intended to aid accurate and consistent use of
MedDRA in coding and retrieval• Overcome differences in medical practice worldwide
– Descriptions aim to be broadly consistent with definitions across different regulatory regions
• See Appendix B of MedDRA Introductory Guide• Accessible in MSSO’s Browsers
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Concept Descriptions (cont)
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Recent Release….
• New document providing details, examples and further guidance on specific topics
• ‘Living’ document updated based on users’ needs, not tied to biannual MedDRA releases
• Detailed guidance on coding Medication errors74
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MedDRA Documentation
• All documentation is available on the MedDRA website
• MedDRA Introductory Guide and Points to Consider document are updated for each new release
• MedDRA Term Selection: Points to Consider Companion Document is a living document
• Version report is downloaded with MedDRA content
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MedDRA Website
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MSSO Contacts
• Website–www.meddra.org
• Email–[email protected]
• Frequently Asked Questions–www.meddra.org/faq
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Thank You
Questions?