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[email protected] NHS Data Model and Dictionary Service

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Page 1: datastandards@nhs.net NHS Data Model and Dictionary Service

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Page 2: datastandards@nhs.net NHS Data Model and Dictionary Service

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Welcome

NHS Data Model and Dictionary Service

Open Day

Page 3: datastandards@nhs.net NHS Data Model and Dictionary Service

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Aim of the Day:

To enable users to discuss the

NHS Data Model and Dictionary

with the National team

Page 4: datastandards@nhs.net NHS Data Model and Dictionary Service

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vice Topics for Discussion

• Introductions• Overview of the "Introduction to the NHS Data Model and

Dictionary" Training Course • Role of the NHS Data Model and Dictionary Service  • Change Process• NHS Data Model and Dictionary Service Website  • NHS Data Model and Dictionary Service Consultation Website• Navigation of the NHS Data Model and Dictionary  • Lunch around 12:30• Using a Patient Pathway for Outcome Analysis • Measuring 18 weeks  • Commissioning Data Set Version 6 • Open Discussion• Review of the day• Close no later than 3:30pm

Page 5: datastandards@nhs.net NHS Data Model and Dictionary Service

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Introduction to the NHS Data Model and Dictionary Training Course

• Objective:

Develop a greater understanding of the NHS Data Model and Dictionary

• Target Audience:

NHS Information professionals in Trusts, PCTs and Health Authorities

• Delivery:

2 day course based in Leeds, 6 times a year

Next course October 2007 in Leeds

Page 6: datastandards@nhs.net NHS Data Model and Dictionary Service

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Course Content

The training course includes presentations on the following topics:

• Background • Data Standards • The Change Process • NHS Data Dictionary • Data Validation • Data Modelling • Data Definition Queries

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Course Content

On successful completion of the course, participants will be able to:

• Understand the need for Data Standards• Understand how to navigate the NHS Data

Dictionary• Read a Data Model• Use the NHS Data Dictionary to resolve data

definition queries

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Any Questions

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NHS Data Model and Dictionary Service Products

NHS Data Model and Dictionary

NHS Data Model and Dictionary

NHS Data Model and Dictionary Website

NHS Data Model and Dictionary Website

NHS Data Model and Dictionary Consultation

Website

NHS Data Model and Dictionary Consultation

Website

Frequently Asked

Questions

Frequently Asked

Questions

Training Courses

Training Courses

Open Days

Open Days

Query Resolution

Query Resolution

Mailing List

Mailing List

Supporting Development

Supporting Development

Page 10: datastandards@nhs.net NHS Data Model and Dictionary Service

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Role of the NHS Data Modeland Dictionary Service

Custodians of the NHS Data Model & Dictionary

• Help users read and understand it: Helpdesk Open Days Training course

• Publish it• Identify changes to it• Help policy leads change it

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NHS Data Model and Dictionary

•Well established•English•National•StandardEnabling PolicyTo be implementedThroughout the NHS

Policy examples• Purchaser / Provider• Casemix• Commissioning• Waiting lists• New ways of working• Treatment functions• National Service

Frameworks

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History of the dictionary

• Established 1985 - Körner • Minimum Data Sets - all

the data required to manage a “district”

• Contract Minimum Data Sets - a sub set of the data items required to contract

• Renamed Commissioning Data Sets

CDS

ClinicalRecordAdmin

record

ClinicalData set

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NHS Data Model and Dictionary Service

• Commissioning Data Set and Mental Health Minimum Data Set Message Schema

More of these, later

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Does the NHS work?

Page 15: datastandards@nhs.net NHS Data Model and Dictionary Service

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Does the NHS work?

Enables DH and NHS to:• Monitor• Compare • Model• Predict• Manage• Pay

Main stakeholders:• Department of

Health• Information Centre• Monitor• Healthcare

commission• Wider NHS• General Public• Suppliers

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Any Questions

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Change Process

• Driven by policy• Often involves multiple Data Set Change

Notices (DSCNs)• Notification• Review of Central Returns (ROCR)

mandate• Dictionary update• Commissioning Data Set Changes (CDS)• Message schema changes

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Who Mandates Change?

Review of Central Returns (ROCR)

• Mandate collection

• Mandate NHS

• Concentrate on burden

• Restricted influence over Foundation Trusts

NHS Information Standards Board (ISB)

• Assure the standard and assess the impact of changes

• Publish DSCNs• Linked to supplier

contracts

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Government PolicyROCR RequestHelpdesk etc..

Update

Analysis

Stakeholders

Issue

Draft

Consultation

FurtherAnalysis

Early liaison

with ISB

Approved

Resubmit / Conditional approval

Rejected ISB

What is the NHS Data Model and Dictionary Service (DMDS)?

Page 20: datastandards@nhs.net NHS Data Model and Dictionary Service

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Change Process• Operational standards are approved by NHS

Information Standards Board• Standards must have the following defined before

they are approved:• Scope and purpose• Department of Health policy sponsor• Customer need• Implementation plan including testing and

training• Business justification• Risks• Research into existing similar standards• Interdependencies and interoperability

Page 21: datastandards@nhs.net NHS Data Model and Dictionary Service

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Change Process

Other types of standard exist:

• Fundamental - ‘building blocks’

e.g. SNOMED, XML• Framework – strategic

e.g. e-GIF

Changes to existing standards are

communicated through Data Set Change Notices

Page 22: datastandards@nhs.net NHS Data Model and Dictionary Service

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Any Questions

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Page 24: datastandards@nhs.net NHS Data Model and Dictionary Service

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http://www.connectingforhealth.nhs.uk/systemsandservices/data/datamodeldictionary/index_html

• It holds:• News• NHS Data Model and Dictionary• Help (Frequently Asked Questions) (Updated)• Events (New)• Mailing List• Consultation Website• Publications (New)• XML Schemas• CDS Supporting Information (New)• Link to Data Set Change Notice Website• Useful Links (Updated)

NHS Data Model and Dictionary Service Website

Page 25: datastandards@nhs.net NHS Data Model and Dictionary Service

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• Check the NHS Data Model and Dictionary

• Look at Frequently Asked Questions

• Search other websites (e.g. ISB etc)

• Contact other Help Desks (e.g. SUS etc)

Options for ResolvingData Definition Queries

Page 26: datastandards@nhs.net NHS Data Model and Dictionary Service

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Data Definition Queries

Data Standards and Products Helpdesk:[email protected]

• full name• job title• telephone number• full postal address • organisation code (if you are an NHS user)• suggested resolution

Page 27: datastandards@nhs.net NHS Data Model and Dictionary Service

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Any Questions

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Consultation Website: What is it?

• View NHS data standards during development stages

• Review and comment on work in progress

• Discuss work with the NHS Data Model and Dictionary Service

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Consultation Website: Example Sites

• 18 weeks• Quarterly Monitoring: Accident and

Emergency Services (QMAE)• Commissioning Data Set V6• Mental Health Minimum Data Set• Removal of EDIFACT• Genitourinary Medicine Access Monthly

Monitoring Data

Page 30: datastandards@nhs.net NHS Data Model and Dictionary Service

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Consultation Website: Access

Email:[email protected]

Note: Users granted access to the Consultation Website are automatically added to the NHS Data Model and Dictionary Service Mailing List

Page 31: datastandards@nhs.net NHS Data Model and Dictionary Service

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Any Questions

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Page 33: datastandards@nhs.net NHS Data Model and Dictionary Service

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Data Model Components

NHS Number

NHS Number (Baby)

NHS Number (Mother)

Carer Support Indicator

Data Elements

Local Patient IdentifierOrganisation Code (Local Patient Identifier)Organisation Code TypeNHS NumberBirth Date

Accident and Emergency Attendance

Organisation Code (Code of Provider)Organisation Code (Code of Commissioner)Reporting Period (Mental Health)NHS NumberElectoral Ward of Usual Address

Mental Health Minimum Data Set

Data Sets

PATIENT

ACTIVITY

Classes

for

Subject of

1

0..*

Relationship

K NHS Number Carer Support Indicator Carer Permission Date Chronically Sick or Disabled Drug Misuse Database Number …..

K Activity Identifier

Attributes

Page 34: datastandards@nhs.net NHS Data Model and Dictionary Service

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http://www.datadictionary.nhs.uk

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•Data Collections• Commissioning Data Sets• Supporting Data Sets• Clinical Data Sets• Central Returns

•Diagrams•Definitions•Search•All Items Index

Data Dictionary Navigation Options

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NHS Data Dictionary Release Cycle

• The NHS Data Model and Dictionary is updated once changes pass their implementation date

• Often this includes April and October• May include other months,

for example August 2007• Each item is independently version

controlled• The history of every change is included with

every item

Page 37: datastandards@nhs.net NHS Data Model and Dictionary Service

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Any Questions

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Intelligent use of information

to hit Nicholas Oughtibridge,

the aim as well as the target

Using a Patient Pathway for Outcome Analysis

Page 39: datastandards@nhs.net NHS Data Model and Dictionary Service

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Intelligent use of information

to hit Nicholas Oughtibridge,

the aim as well as the target

Page 40: datastandards@nhs.net NHS Data Model and Dictionary Service

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vice Traditional Measurement

First consultant out-patient appointment• 13 weeks

Waiting for elective admission• Six months

Arrival to discharge at A&E• Four hours

Practice and GP Access• 24 / 48 hours

G U Medicine• 48 hours

Page 41: datastandards@nhs.net NHS Data Model and Dictionary Service

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Complex definitions

• Suspensions• Deferrals• Reasonable offers• Patient

cancellations• Hospital

cancellations• DNA• CNA

Page 42: datastandards@nhs.net NHS Data Model and Dictionary Service

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Most queues have been hidden!

• Out-patient following emergency

admission A&E attendance

• Endoscopies Except direct

access GP referral Admitted

• Ready for discharge

• Audiology• Mental health• Clinical Assessment• GPwSI• Follow up clinics• Non-consultant

clinics• Imaging• Non-GP referral

Page 44: datastandards@nhs.net NHS Data Model and Dictionary Service

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Key features

• Regular flow

• Predictable peaks in demand

• Each stage is connected to the previous and the next

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Traditional measurement

• Concentrates on start and end

• Misses out many stages in the middle

• Counts activity and people queuing for activity

Page 47: datastandards@nhs.net NHS Data Model and Dictionary Service

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Traditional measurement

• Measure Stations

• Counts activity and queuing for activity

• Ignores• the destination• the journey• time

Page 48: datastandards@nhs.net NHS Data Model and Dictionary Service

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Page 49: datastandards@nhs.net NHS Data Model and Dictionary Service

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For how long

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Minimise hidden waits

• Measure from referral to the start of treatment designed to resolve the patient’s problem or condition

• Take the opportunity tounderstand patient journeyslook beyond the target

(First Definitive Treatment)

Page 51: datastandards@nhs.net NHS Data Model and Dictionary Service

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Problems …

• An incident in one place can have an impact on the whole service

• The flow has to find alternative routes

• Difficult to manage• Difficult for customers

Page 52: datastandards@nhs.net NHS Data Model and Dictionary Service

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Problems

• An incident in one department can have an impact on the whole service

• The flow has to find alternative routes• Difficult to manage• Difficult for patients

Page 53: datastandards@nhs.net NHS Data Model and Dictionary Service

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Mornington Crescent

The game is intended as a parody of complicated strategy games, and particularly satirises the complex rules and terminology that evolve around games such as contract bridge or chess.

Wikipedia

The Mornington Crescent tube station is on London's Northern Line between Euston and Camden Town on the Charing Cross Branch.

However, if you travel between the same two stations on the City Branch, the station simply isn't there. Now you see it, now you don't.

Page 54: datastandards@nhs.net NHS Data Model and Dictionary Service

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Mornington Crescent

But is it all just a game …

I’m sorry. I haven’t a clue!

Page 55: datastandards@nhs.net NHS Data Model and Dictionary Service

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No departments are isolated

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Primary Care Zone

Secondary Care Zone

Chronic and recurrent conditions

Definitive Treatment

Em

erg

ency

M

edic

ine

GP

Wri

tten

ref

erra

l to

a

Clin

ical

Ass

essm

ent

Cen

tre

District Nursing

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vice Some journeys

GP Written referral• Home• GP• Consultant first• Diagnostics• Consultant follow up• Treatment• Follow up• Discharge• Home

GPwSI or CAS• Home• GP• GPwSI or CAS• Diagnostics• Consultant first• Treatment• Follow up• Discharge• Home

Page 58: datastandards@nhs.net NHS Data Model and Dictionary Service

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Isolation – barrier to success

• No department is isolated

• Patients are referred

In

Out

• Inter-departmental referrals

make the patient journey

• Departments may be in

different providers

Analyse the flow

Identify the blockages

Measure the variation

Spot surplus capacity

Link outcome to the journey

Page 59: datastandards@nhs.net NHS Data Model and Dictionary Service

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Understand the flow

• Link the whole patient journey• Concentrate on the patient experience• Understand patient choices• Use scheduled activity – identify scheduled

problems Don’t plan to fail

Page 60: datastandards@nhs.net NHS Data Model and Dictionary Service

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Core techniques to managewaiting lists

• Validation• Primary Targeting lists• Eliminate unnecessary queues• Eliminate unnecessary steps / activities• Schedule likely events in advance• Measure capacity in appropriate units

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Validation

• Ensure the people you think require treatment are willing and available to have treatment

• 18 month target was achieved using validation

• Available includes • patient choice of treatment• clinical availability / suitability

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Primary Targeting Lists

• A list of the patients needing treatment in order

• Historically effective for stage of treatment• Major contributor to 12 month and 17

weeks targets

• Still relevant• Now need to look at the whole pathway

Page 63: datastandards@nhs.net NHS Data Model and Dictionary Service

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Eliminate unnecessary queues

• Reducing queues reduces the variability in treatment time

• Queues should be for different streams / processes

• Queues should not be for arbitrary administrative reasons

• Eliminate “back doors” to treatment which allow queue jumping by those in the know

Page 64: datastandards@nhs.net NHS Data Model and Dictionary Service

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Plan ahead

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Plan ahead

• Book known or anticipated stages in advance

• Schedule activities on the same day where possible

• Allow patients to choose mutually convenient slots where possible

• Schedule resources as well as people

Page 66: datastandards@nhs.net NHS Data Model and Dictionary Service

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Measure in appropriate units

Clinic time required Clinic slots required Bed days anticipated Theatre hours used Scanner time required Equipment required

Use the same units for activity, backlog, capacity & demand

Number of first consultant led appointments

GP Written referrals received

Finished Consultant Episodes

Patients waiting Patients seen last

month

Page 67: datastandards@nhs.net NHS Data Model and Dictionary Service

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Key statistics

• 2.671 million journeys per day

• 3.009 million passengers use the 2 platforms at Mornington Crescent per year

• 77.564 million passengers use the 8 platforms at Kings Cross per year

Page 68: datastandards@nhs.net NHS Data Model and Dictionary Service

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Outcome analysis

• By looking at the patient pathway early interventions can be assessed in terms of outcome

• Adherence to care pathways can be assessed

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Measuring 18 weeks

Changes for a sustainable approach

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Aim

To define and measure the length of wait from GP referral to first definitive treatment

Page 74: datastandards@nhs.net NHS Data Model and Dictionary Service

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Page 75: datastandards@nhs.net NHS Data Model and Dictionary Service

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Patient

What are we trying to measure?

Lets look at some pathways

Page 76: datastandards@nhs.net NHS Data Model and Dictionary Service

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Clinical Assessment Attendance

Walk in centreattendances

Outpatient attendances

Radiologyinvestigations

Physiological Measurements

Elective Admissions

Emergency Admissions

Accident and Emergency

attendances

GP Attendances

Patient

Page 77: datastandards@nhs.net NHS Data Model and Dictionary Service

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Clinical Assessment Attendance

Walk in centreattendances

Outpatient attendances

Radiologyinvestigations

Physiological Measurements

Elective Admissions

Emergency Admissions

Accident and Emergency

attendances

GP Attendances

Patient

Page 78: datastandards@nhs.net NHS Data Model and Dictionary Service

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Clinical Assessment Attendance

Walk in centreattendances

Outpatient attendances

Radiologyinvestigations

Physiological Measurements

Elective Admissions

Emergency Admissions

Accident and Emergency

attendances

GP Attendances

Patient

Page 79: datastandards@nhs.net NHS Data Model and Dictionary Service

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Clinical Assessment Attendance

Walk in centreattendances

Outpatient attendances

Radiologyinvestigations

Physiological Measurements

Elective Admissions

Emergency Admissions

Accident and Emergency

attendances

GP Attendances

Patient

Page 80: datastandards@nhs.net NHS Data Model and Dictionary Service

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Clinical Assessment Attendance

Walk in centreattendances

Outpatient attendances

Radiologyinvestigations

Physiological Measurements

Elective Admissions

Emergency Admissions

Accident and Emergency

attendances

GP Attendances

Patient

Page 81: datastandards@nhs.net NHS Data Model and Dictionary Service

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Clinical Assessment Attendance

Walk in centreattendances

Outpatient attendances

Radiologyinvestigations

Physiological Measurements

Elective Admissions

Emergency Admissions

Accident and Emergency

attendances

GP Attendances

Patient

Page 82: datastandards@nhs.net NHS Data Model and Dictionary Service

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Clinical Assessment Attendance

Walk in centreattendances

Outpatient attendances

Radiologyinvestigations

Physiological Measurements

Elective Admissions

Emergency Admissions

Accident and Emergency

attendances

GP Attendances

Patient

Page 83: datastandards@nhs.net NHS Data Model and Dictionary Service

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Clinical Assessment Attendance

Walk in centreattendances

Outpatient attendances

Radiologyinvestigations

Physiological Measurements

Elective Admissions

Emergency Admissions

Accident and Emergency

attendances

GP Attendances

Patient

Page 84: datastandards@nhs.net NHS Data Model and Dictionary Service

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The strategic approach

• Measurement using the CDS• Patient Pathway Identifier to link records• Referral to Treatment Period Status to

identify the anticipated or final status of each activity

• Referral to Treatment Period Start Date and Referral to Treatment Period End Date

Page 85: datastandards@nhs.net NHS Data Model and Dictionary Service

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A worked example - ReferralCDS ID Activity

DateStart End Status

021 1 9/1/07 10

Page 86: datastandards@nhs.net NHS Data Model and Dictionary Service

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A worked example - Appointment CDS ID Activity

DateStart End Status

021 1 9/1/07 10

021 1 24/1/07 9/1/07 10

Page 87: datastandards@nhs.net NHS Data Model and Dictionary Service

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A worked example - AttendedCDS ID Activity

DateStart End Status

021 1 9/1/07 10

021 1 24/1/07 9/1/07 10

020 1 24/1/07 9/1/07 10

Page 88: datastandards@nhs.net NHS Data Model and Dictionary Service

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A worked example - X-Ray bookedCDS ID Activity

DateStart End Status

021 1 9/1/07 10

021 1 24/1/07 9/1/07 10

020 1 24/1/07 9/1/07 10

021 1 31/1/07 9/1/07 20

Page 89: datastandards@nhs.net NHS Data Model and Dictionary Service

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A worked example - X-Ray attendedCDS ID Activity

DateStart End Status

021 1 9/1/07 10

021 1 24/1/07 9/1/07 10

020 1 24/1/07 9/1/07 10

021 1 31/1/07 9/1/07 20

020 1 31/1/07 9/1/07 20

Page 90: datastandards@nhs.net NHS Data Model and Dictionary Service

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A worked example - Decide to admitCDS ID Activity

DateStart End Status

021 1 9/1/07 10

021 1 24/1/07 9/1/07 10

020 1 24/1/07 9/1/07 10

021 1 31/1/07 9/1/07 20

020 1 31/1/07 9/1/07 20

030 1 9/1/07 30

Page 91: datastandards@nhs.net NHS Data Model and Dictionary Service

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A worked example - TCI givenCDS ID Activity

DateStart End Status

021 1 9/1/07 10

021 1 24/1/07 9/1/07 10

020 1 24/1/07 9/1/07 10

021 1 31/1/07 9/1/07 20

020 1 31/1/07 9/1/07 20

030 1 9/1/07 30

030 1 19/3/07 9/1/07 30

Page 92: datastandards@nhs.net NHS Data Model and Dictionary Service

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A worked example - AdmittedCDS ID Activity

DateStart End Status

021 1 9/1/07 10

021 1 24/1/07 9/1/07 10

020 1 24/1/07 9/1/07 10

021 1 31/1/07 9/1/07 20

020 1 31/1/07 9/1/07 20

030 1 9/1/07 30

030 1 19/3/07 9/1/07 30

130 1 19/3/07 9/1/07 19/3/07 30

Page 93: datastandards@nhs.net NHS Data Model and Dictionary Service

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vice Timetable - content

Topic DSCN Publish Collect from

Submit from

Paediatric Critical Care 01/2007 Feb '07 Apr '07 Dec '07

Neonatal Critical Care 15/2006 Aug '06 Apr '07 Dec '07

Age 08/2007 Apr '07 Oct '07 Dec '07

Discharge Ready Date 13/2007 May '07 Oct '07 Dec '07

Patient Pathway 18/2006 Dec '06 Jan '07 Dec '07

Referral to treatment periods 18/2006 Dec '06 Jan '07 Dec '07

Earliest Reasonable Offer Date 09/2007 Apr '07 Oct '07 Dec '07

Diagnostic data flow 02/2007 Feb '07 Oct '07 Oct '07

CDS 5 refresh With ISB Ongoing Oct '07

CDS 6 XML schema 14/2007 Jun '07 (message) Dec '07

CDS 6 tables 18/2007 May ’07 (message) Dec ‘07

Page 94: datastandards@nhs.net NHS Data Model and Dictionary Service

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Timetable - submission

Topic Implement Mandated

Diagnostic data through out-patients Dec '07 Apr '08

Elective Admission List Apr '08

Future Out-patient appointments Dec '07 Apr '08

Use of net change protocol Use of CDS 6

Retire Commissioning Data Set 4 Jul '07

Retire Commissioning Data Set 5 Apr '08

Timely submission (within 4 days of change) Apr '08

Secondary Uses Service extracts Dec '07

Enhanced reporting for commissioners To be confirmed

Page 95: datastandards@nhs.net NHS Data Model and Dictionary Service

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Any Questions

Page 96: datastandards@nhs.net NHS Data Model and Dictionary Service

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Commissioning Data Set Version 6

Page 97: datastandards@nhs.net NHS Data Model and Dictionary Service

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Commissioning Data Set Purpose• Allows organisations to receive activity level

data• Supports Commissioning• Feeds Hospital Episode Statistics• Covers

• Past, current and future admitted patients including day case, long stay and psychiatric

• Past and future out-patients including ward-attenders, nurse/midwife/therapist and diagnostics

• Past Accident and Emergency attendances

Page 98: datastandards@nhs.net NHS Data Model and Dictionary Service

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Commissioning Data Set Version 6

• Evolution over 15 years, not revolution

• Move to re-use common components

• Summary of time-table• Notice of change published in May '06• Schema and Tables published May ’07• Expected to be mandatory April ‘08

Page 99: datastandards@nhs.net NHS Data Model and Dictionary Service

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Commissioning Data Set 6

• XML – protects the integrity of the data• Commissioning Data Set 5 has proved challenging

to some providers

• Prevents invalid data for almost all fields• Exceptions include NACS, ICD, OPCS, READ

Page 100: datastandards@nhs.net NHS Data Model and Dictionary Service

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Categorisation of Data Quality

Missing

Default Other

Invalid

Valid

Data

Page 101: datastandards@nhs.net NHS Data Model and Dictionary Service

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Categorisation of Data Quality

Missing

Default Other

Valid

Data

Page 102: datastandards@nhs.net NHS Data Model and Dictionary Service

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If the admission is in a series of regular day or night admissions

Then use either National Code 0 or 1

Otherwise, don’t send the field

Page 103: datastandards@nhs.net NHS Data Model and Dictionary Service

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vice A numberA number

Values 0 or 1Values 0 or 1

One digit longOne digit long

Page 104: datastandards@nhs.net NHS Data Model and Dictionary Service

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Page 105: datastandards@nhs.net NHS Data Model and Dictionary Service

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Main New Content

• PbR• Paediatric and

neonatal critical care

• Discharge ready date

• Age

• 18 Weeks• Pathway identifier• RTTP data items• Future out-

patients• Earliest

reasonable offer date

Page 106: datastandards@nhs.net NHS Data Model and Dictionary Service

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Big impact - Content

• Future out-patients• Elective Admission List• Critical Care• Patient Pathways• Referral to treatment periods• Diagnostic systems

Page 107: datastandards@nhs.net NHS Data Model and Dictionary Service

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Big impact - Submission

• Frequency moving to “within 4 days of a change”

• Net change protocol for all routine submissions

Page 108: datastandards@nhs.net NHS Data Model and Dictionary Service

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Any Questions

Page 109: datastandards@nhs.net NHS Data Model and Dictionary Service

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Open Discussion

Page 110: datastandards@nhs.net NHS Data Model and Dictionary Service

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Review of the day

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