The original algorithm consisted of two criteria. Individuals meeting at least one were considered to have RA. Criterion 1: ≥1 RA Read code and a disease modifying antirheumatic drug (DMARD) without an alternative indication. Criterion 2: ≥2 RA Read codes, with at least one ‘strong’ code and no alternative diagnoses. Lists of codes for consultations and prescriptions were obtained from the authors of the original algorithm where these were available, or compiled based on the original description and clinical knowledge. 4161 people with a first Read code for RA between 1 January 2010 and 31 December 2012 were selected from the Clinical Practice Research Datalink (CPRD, successor to the GPRD), and the criteria applied.
Sara Muller, Samantha L Hider,Karim Raza, Rebecca J Stack, Richard A Hayward, Christian D Mallen, An algorithm to identify rheumatoid arthritis in primary care a Clinical Practice Research Datalink study. BMJ Open, 5(e009309), 2015.
| Code | Description | Entity type | Category | Coding System (Read) |
|---|---|---|---|---|
| 14G1.00 | H/O: rheumatoid arthritis | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| 2G27.00 | O/E-hands-rheumatoid spindling | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N005.00 | Adult Still's Disease | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040.00 | Rheumatoid arthritis | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040000 | Rheumatoid arthritis of cervical spine | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040100 | Other rheumatoid arthritis of spine | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040200 | Rheumatoid arthritis of shoulder | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040400 | Rheumatoid arthritis of acromioclavicular joint | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040500 | Rheumatoid arthritis of elbow | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040600 | Rheumatoid arthritis of distal radio-ulnar joint | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040700 | Rheumatoid arthritis of wrist | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040800 | Rheumatoid arthritis of MCP joint | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040900 | Rheumatoid arthritis of PIP joint of finger | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040A00 | Rheumatoid arthritis of DIP joint of finger | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040B00 | Rheumatoid arthritis of hip | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040C00 | Rheumatoid arthritis of sacro-iliac joint | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040D00 | Rheumatoid arthritis of knee | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040F00 | Rheumatoid arthritis of ankle | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040G00 | Rheumatoid arthritis of subtalar joint | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040H00 | Rheumatoid arthritis of talonavicular joint | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040J00 | Rheumatoid arthritis of other tarsal joint | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040K00 | Rheumatoid arthritis of 1st MTP joint | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040L00 | Rheumatoid arthritis of lesser MTP joint | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040M00 | Rheumatoid arthritis of IP joint of toe | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040S00 | Rheumatoid arthritis - multiple joint | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N040T00 | Flare of rheumatoid arthritis | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N043.00 | Juvenile rheumatoid arthritis - Still's disease | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N043000 | Juvenile rheumatoid arthropathy unspecified | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N043100 | Acute polyarticular juvenile rheumatoid arthritis | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N043200 | Pauciarticular juvenile rheumatoid arthritis | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N043300 | Monarticular juvenile rheumatoid arthritis | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N043z00 | Juvenile rheumatoid arthritis NOS | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N045500 | Juvenile rheumatoid arthritis | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| N04y200 | Adult-onset Still's disease | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
| Nyu1200 | [X]Other specified rheumatoid arthritis | res34: rheumatoid_arthritis_group2 | diagnostic | Read |
To Export Phenotype Details:
| Format | API |
|---|---|
| XML | site_root/api/v1/public/phenotypes/PH602/version/1204/detail/?format=xml |
| JSON | site_root/api/v1/public/phenotypes/PH602/version/1204/detail/?format=json |
| R Package |
|
To Export Phenotype Code List:
| Format | API |
|---|---|
| XML | site_root/api/v1/public/phenotypes/PH602/version/1204/export/codes/?format=xml |
| JSON | site_root/api/v1/public/phenotypes/PH602/version/1204/export/codes/?format=json |
| CSV | site_root/phenotypes/PH602/version/1204/export/codes/ |
| R Package |
|
| Version ID |
Name | Owner | Publish date | |
|---|---|---|---|---|
| 1204 | Rheumatoid Arthritis Group2 | ieuan.scanlon | 2021-10-06 | currently shown |
Export - export all codes into a csv file/JSON/XML for the current phenotype version.
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