ICD-10-CM Tabular Index · Chapter 2 · FY 2027 C30–C39
Malignant neoplasms of respiratory and intrathoracic organs (C30-C39) ICD-10-CM
The C30–C39 section covers malignant neoplasms of respiratory and intrathoracic organs with 51 ICD-10-CM diagnosis codes, of which 40 are billable in fiscal year 2027. The section is organized into the 8 code ranges listed below.
✓ Built from the official CMS FY 2027 datasetEffective Oct 1, 2026 – Sep 30, 2027
8
Code Ranges
51
Diagnosis Codes
40
Billable Codes
C30–C39
Code Range
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.
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the C30–C39 Code Range
These cancers affect the nasal cavity, middle ear, breathing passages, lungs, and other organs within the chest. The categories separate them by the affected site, then often by a more specific part of that site.
C30 separates the nasal cavity from the middle ear, while C31 identifies the affected sinus. C32 divides the voice box, or larynx, by its parts. C33 identifies the windpipe, or trachea. C34 separates the main bronchus from the upper, middle, and lower parts of the lung or bronchus.
C37 identifies the thymus. C38 separates the heart, mediastinum, and pleura, with further distinctions within the mediastinum. C39 distinguishes unspecified parts of the upper and lower respiratory tract. Some subdivisions also identify overlapping sites or an unspecified part.
Questions About This Page
How many codes are in the C30-C39 range?
The C30-C39 range contains 51 ICD-10-CM diagnosis codes in FY 2027. 40 of them are billable, and the rest are category headers that organize the section.
What conditions does C30-C39 cover?
The range covers malignant neoplasms of respiratory and intrathoracic organs. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
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.
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.
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.
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
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.
