Table 1 Most common Read codes extracted from free text for 2000 patients within 90 days of MI in CALIBER (top five codes in each category)
Number of records (%) | Read code | Read term |
|---|---|---|
Current or previous condition (diagnosis Read codes) | ||
887 (8.1%) | G30z.00 | Acute myocardial infarction NOS |
443 (4.1%) | R065.00 | [D] Chest pain |
304 (2.8%) | C10..00 | Diabetes mellitus |
272 (2.5%) | G307100 | Acute non-ST segment elevation myocardial infarction |
256 (2.3%) | G33..00 | Angina pectoris |
Current or previous condition (non − diagnosis Read codes) | ||
991 (9.5%) | 8H3Z.00 | Other hospital admission NOS |
913 (8.8%) | 8H…00 | Referral for further care |
795 (7.6%) | 1M…00 | Pain |
469 (4.5%) | 173..00 | Breathlessness |
445 (4.3%) | 8HA..11 | Discharged from follow up |
Quantitative test result | ||
577 (15.8%) | 42Z7.00 | Red blood cell distribution width |
142 (3.9%) | 42M..00 | Lymphocyte count |
141 (3.9%) | 42N..00 | Monocyte count |
139 (3.8%) | 42K..00 | Eosinophil count |
138 (3.8%) | 42J..00 | Neutrophil count |
Absence of condition (diagnosis Read codes) | ||
121 (7.8%) | R023.00 | [D] Oedema |
105 (6.8%) | G33..00 | Angina pectoris |
90 (5.8%) | R065.00 | [D] Chest pain |
57 (3.7%) | A....00 | Infectious and parasitic diseases |
38 (2.5%) | R006200 | [D] Fever NOS |
Absence of condition (non-diagnosis Read codes) | ||
281 (15.6%) | 182..00 | Chest pain |
274 (15.2%) | 173..00 | Breathlessness |
208 (11.5%) | 1M…00 | Pain |
89 (4.9%) | 2I18.12 | O/E - tenderness |
48 (2.7%) | 199..00 | Vomiting |
Suspected condition (diagnosis Read codes) | ||
70 (8.2%) | G30z.00 | Acute myocardial infarction NOS |
48 (5.6%) | K190.00 | Urinary tract infection, site not specified |
40 (4.7%) | A….00 | Infectious and parasitic diseases |
32 (3.8%) | G33..00 | Angina pectoris |
23 (2.7%) | G581.13 | Impaired left ventricular function |
Suspected condition (non-diagnosis Read codes) | ||
44 (16.5%) | 8H…00 | Referral for further care |
18 (6.7%) | 8H3Z.00 | Other hospital admission NOS |
16 (6.0%) | 1M…00 | Pain |
9 (3.4%) | 173..00 | Breathlessness |
7 (2.6%) | 2C2..11 | O/E - anaemic |