Malignant neoplasms of respiratory and intrathoracic organs (C30-C39)

ICD-10 codes C30 through C39 are used specifically to classify various types of malignant tumors affecting the respiratory system and nearby intrathoracic organs. These codes help identify cancers of the nasal cavity, sinuses, larynx, trachea, bronchus, lungs, thymus, heart, mediastinum, pleura, and other less clearly defined respiratory sites.

This range includes detailed codes for different locations such as C30.0 for malignant neoplasm of the nasal cavity (also known by terms like olfactory neuroblastoma or squamous cell carcinoma of nasal sinuses), and C31 codes covering accessory sinuses including maxillary and ethmoidal sinuses. The larynx (voice box) cancers are captured under C32 with distinctions for glottis, supraglottis, and subglottis cancers, using synonyms such as carcinoma of vocal cords or epiglottis. Malignant tumors of the trachea and bronchus fall under C33 and C34, which include specific topographies like main bronchus or lung lobes, with common references like non-small cell lung cancer and Pancoast tumor. The thymus and intrathoracic organs are coded with C37 and C38, marking malignancies such as thymomas, malignant neoplasms of the heart, mediastinum, or pleura. Finally, C39 represents malignant neoplasms of other ill-defined respiratory and intrathoracic sites. This coding range ensures precise documentation of respiratory and thoracic malignancies essential for diagnosis, treatment planning, and epidemiological tracking.

Instructional Notations

Includes

This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

  • malignant neoplasm of middle ear

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • mesothelioma C45