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An Introduction to  Clinical LOINC Stanley M. Huff, M.D. Intermountain Healthcare [email_address]
Outline for All Tutorials ,[object Object],[object Object],[object Object],[object Object],08/21/11
Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
Important facts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
Coverage ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
The Messaging Paradigm 08/21/11 System A System B Trigger Event Network Order Result
HL7 Result Message (ORU) 08/21/11 Segment Data Field MSH|^~amp;|||||19981105131523||ORU^R01| PID|||100928782^9^M11||Smith^John^J| OBR||||Z0063-0^BP^LN| OBX||CE|8361-4^POSITION^LN||SIT^Sitting| OBX||NM|8479-8^SBP^LN||138|mmHg| Component
OBX: a name-value pair approach 08/21/11 A code that identifies the data in OBX-5 (Temp Reading) OBX||NM|11289-6^^LN||38|C^^ISO+|||||F Other data fields include: date of observation, identity of provider giving observation, normal ranges, abnormal flags Status A code that  identifies the units of numerical data in OBX-5 A code that identifies the  datatype of OBX-5 OBX-5: Data
OBX: with a coded value 08/21/11 OBX||CE|883-9^ Blood Group ^LN||58460004^ Group O ^SCT| The code is from SNOMED The code is from LOINC OBX-5: Data A code for Group O A code that identifies the  datatype as a coded element A code that identifies the data in OBX-5 (ABO Blood Group)
So we are all using HL7, what is the problem? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],You and I may know that these are similar results, but our computers will not.
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],The Goal 08/21/11 Agree on a universal coding system for clinical observations.
How terminologies fit into the model ,[object Object],[object Object],[object Object],[object Object],08/21/11
Focus of LOINC ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
Brief History of LOINC ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
Approach ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
LOINC makes names for things in use  ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
Two LOINC committees ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
Current and Former Clinical LOINC Members ,[object Object],08/21/11
Clinical LOINC Subject Areas ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
LOINC Mascot 08/21/11
Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
[object Object],General Form of Clinical LOINC Names 08/21/11 <component> : <property> : <timing> : <system> : <scale> :  <method> The first 5 parts are mandatory, but  method  is optional. Subparts of the six axes are created as needed in specific subject areas. 8331-1  Body Temperature  :TEMP  :PT  :MOUTH  :QN
Summary of the six primary axes (clinical) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
Component 08/21/11 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Subtypes – period as a separator ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
Challenge/Pre condition - ^ as a separator ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
Adjustments - ^ ^ as a separator ,[object Object],[object Object],08/21/11
Kind of Property ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11 The characteristic or attribute of the component that is measured, evaluated, or observed.
Timing ,[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11 The interval of time over which the observation or measurement was made.
System ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11 The system (context) or body part about which the observation was made.
Patient, Control, or Donor (as part of system) ,[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11 Non-patient values for this axis should be used with care, or combinatorial explosion could result
Scale ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
Method ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11 Procedure used to make the measurement or  observation.  Only used when it makes an  important distinction in sensitivity or specificity.
Putting it all together ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
Use of XXX and {} (curly braces) ,[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
Pre and post coordination with LOINC codes #  70 Dry Weight: Site #1 kg Weight: Site #2 kg 70 70 70 Dry Wet Ideal
Two ways to say the same thing ,[object Object],[object Object],[object Object],[object Object],[object Object],#
Model  fragment in XML ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],#
Relational database implications #  How would you calculate the desired weight loss during the hospital stay? Patient Identifier Date and Time Observation Type Observation Value Units 123456789 7/4/2005 Dry Weight 70 kg 123456789 7/19/2005 Current Weight 73 kg Patient Identifier Date and Time Observation Type Weight type Observation Value Units 123456789 7/4/2005 Weight Dry 70 kg 123456789 7/19/2005 Weight Current 73 kg
More complex examples ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
HL7 & the Claims Attachment Recommendation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
Unsolicited Attachment 08/21/11
Request for Additional Information 08/21/11
Organizations & Documents 08/21/11 X12 277 Transaction 12748-1 9832-1 X12 275 Transaction HL7 CDA R1 15748-3 7832-8 20118-5 4332-7 12748-1 9832-1 ASC X12 & Subcommittee  X12N X12  Trans. Sets  277,  275 TG2 Impl. Guides  277, 275 Health Level  Seven HL7  CDA R 1 HL7  Claims  Attachments Impl.  Guide LOINC Consortium LOINC Codes LOINC Attachment Booklets
Attachment Types Selected for HIPAA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
CDA: Semi- or fully-structured HIPAA  Claims Attachments 08/21/11 Autoadjudicate Provider Payer Transcription * Scanned Paper or Document Imaging * Level 3 CPR Image + XML Semistructured Structured and coded Specific XML forms *
Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
Use cases for Context Specific Hierarchies ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
Consultation Note Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
Issues related to “collections” ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
Proposed strategy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],08/21/11
Literature References ,[object Object],[object Object],[object Object],[object Object],08/21/11

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2011 08 15 - Clinical LOINC Tutorial - Intro and Foundations

  • 1. An Introduction to Clinical LOINC Stanley M. Huff, M.D. Intermountain Healthcare [email_address]
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  • 6. The Messaging Paradigm 08/21/11 System A System B Trigger Event Network Order Result
  • 7. HL7 Result Message (ORU) 08/21/11 Segment Data Field MSH|^~amp;|||||19981105131523||ORU^R01| PID|||100928782^9^M11||Smith^John^J| OBR||||Z0063-0^BP^LN| OBX||CE|8361-4^POSITION^LN||SIT^Sitting| OBX||NM|8479-8^SBP^LN||138|mmHg| Component
  • 8. OBX: a name-value pair approach 08/21/11 A code that identifies the data in OBX-5 (Temp Reading) OBX||NM|11289-6^^LN||38|C^^ISO+|||||F Other data fields include: date of observation, identity of provider giving observation, normal ranges, abnormal flags Status A code that identifies the units of numerical data in OBX-5 A code that identifies the datatype of OBX-5 OBX-5: Data
  • 9. OBX: with a coded value 08/21/11 OBX||CE|883-9^ Blood Group ^LN||58460004^ Group O ^SCT| The code is from SNOMED The code is from LOINC OBX-5: Data A code for Group O A code that identifies the datatype as a coded element A code that identifies the data in OBX-5 (ABO Blood Group)
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  • 36. Pre and post coordination with LOINC codes # 70 Dry Weight: Site #1 kg Weight: Site #2 kg 70 70 70 Dry Wet Ideal
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  • 39. Relational database implications # How would you calculate the desired weight loss during the hospital stay? Patient Identifier Date and Time Observation Type Observation Value Units 123456789 7/4/2005 Dry Weight 70 kg 123456789 7/19/2005 Current Weight 73 kg Patient Identifier Date and Time Observation Type Weight type Observation Value Units 123456789 7/4/2005 Weight Dry 70 kg 123456789 7/19/2005 Weight Current 73 kg
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  • 44. Request for Additional Information 08/21/11
  • 45. Organizations & Documents 08/21/11 X12 277 Transaction 12748-1 9832-1 X12 275 Transaction HL7 CDA R1 15748-3 7832-8 20118-5 4332-7 12748-1 9832-1 ASC X12 & Subcommittee X12N X12 Trans. Sets 277, 275 TG2 Impl. Guides 277, 275 Health Level Seven HL7 CDA R 1 HL7 Claims Attachments Impl. Guide LOINC Consortium LOINC Codes LOINC Attachment Booklets
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  • 47. CDA: Semi- or fully-structured HIPAA Claims Attachments 08/21/11 Autoadjudicate Provider Payer Transcription * Scanned Paper or Document Imaging * Level 3 CPR Image + XML Semistructured Structured and coded Specific XML forms *
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Editor's Notes

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  5. 08/21/11 The pig picture was on an old t-shirt that was found stuffed under something when we moved offices. I cut the pig out and put it in an 8 x 10 frame that we had. I took a picture of it with my cell phone and emailed it to myself. Then I inserted the picture into a blank powerpoint and VOILA - The French Pig. (Sandy Poremba) Do we know who the original artist was?  (Stan) I think it was Jill Warvel - a programmer from here. (Sandy Poremba)
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