| | Upper respiratory tract |
Ear | Earache (H01) | Acute otitis media (H71) |
| Hearing complaints (H02) | Serous otitis media (H72) |
| Discharge from ear (H04) | Eustachian salpingitis (H73) |
| Other symptoms/complaints of ear (H29) | Chronic otitis media (H74) |
| | Perforation tympanic membrane (H77) |
Upper respiratory tract | Sneezing/nasal congestion (R07) | Upper respiratory tract infection/head cold (R74) |
| Other symptoms of nose (R08) | Other infections respiratory system (R83) |
Sinus | Symptoms/complaints sinus (R09) | Sinusitis acute/chronic (R75) |
Throat | Symptoms/complaints throat (R21) | Tonsillitis acute (R76) |
| Symptoms/complaints tonsils (R22) | Acute laryngitis/tracheitis/croup (R77) |
| | Hypertrophy/chronic infection tonsils (R90) |
| | Lower respiratory tract |
Pneumonia | | Pneumonia (R81) |
Cough/bronchitisa | Pain attributed to respiratory system (R01) | Whooping cough (R71) |
| Dyspnea (R02) | Strep-throat/scarlet fever (R72) |
| Wheezing (R03) | Acute bronchitis/bronchiolitis (R78) |
| Cough (R05) | |
| Abnormal sputum/phlegm (R25) | Chronic bronchitis (R79 or R91) |
Exacerbation asthma/COPD | Codes as stated above by cough/bronchitis in patients with asthma or COPD combined with codes COPD (R95) or asthma (R96) |