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ICD-O-3 Site Codes
Related Adjectives
Lung = pneumo-, pulmono-, broncho-, bronchiolo-, alveolar, hilar, Breathing = -pnea
| ICD-O-2/3 | Term |
|---|---|
| C34.0 | Main bronchus |
| C34.1 | Upper lobe, lung |
| C34.2 | Middle lobe, lung (right lung only) |
| C34.3 | Lower lobe, lung |
| C34.8 | Overlapping lesion of lung |
| C34.9 | Lung, NOS |
| C33.9 | Trachea, NOS |
Prior to the Second Edition of ICD-O, trachea and lung had the same ICD-O code. With the advent of ICD-O-2, trachea has a separate code (C33.9) from lung (C34._).
The ICD-O four-digit sub sites of C33.9 through C34.9 are considered part of a single primary site. Since lung is a paired organ, laterality must be coded.
Lung Anatomy (Showing ICD-O-2/3 Codes)
