Carcinoma in situ of middle ear and respiratory system (D02) ICD-10-CM
The D02 code range covers carcinoma in situ of middle ear and respiratory system with 9 ICD-10-CM diagnosis codes. 7 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Use 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.
- code to identify:
- exposure to environmental tobacco smoke Z77.22
- exposure to tobacco smoke in the perinatal period P96.81
- history of tobacco dependence Z87.891
- occupational exposure to environmental tobacco smoke Z57.31
- tobacco dependence F17
- tobacco use Z72.0
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.
- melanoma in situ D03
Codes in the D02 Range 9 codes · 7 billable
- D02 Carcinoma in situ of middle ear and respiratory systemNon-billable
- D02.0 Carcinoma in situ of larynx
- D02.1 Carcinoma in situ of trachea
- D02.2 Carcinoma in situ of bronchus and lungNon-billable
- D02.20 Carcinoma in situ of unspecified bronchus and lung
- D02.21 Carcinoma in situ of right bronchus and lung
- D02.22 Carcinoma in situ of left bronchus and lung
- D02.3 Carcinoma in situ of other parts of respiratory system
- D02.4 Carcinoma in situ of respiratory system, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the D02 range.
Epiglottis
A thin leaf-shaped cartilage that is covered with LARYNGEAL MUCOSA and situated posterior to the root of the tongue and HYOID BONE. During swallowing, the epiglottis folds back over the larynx inlet thus prevents foods from entering the airway.
Eustachian Tube
A narrow passageway that connects the upper part of the throat to the TYMPANIC CAVITY.
Glottis
The vocal apparatus of the larynx, situated in the middle section of the larynx. Glottis consists of the VOCAL FOLDS and an opening (rima glottidis) between the folds.
About the D02 Code Range
ICD-10 code D02 covers carcinoma in situ affecting the middle ear and various parts of the respiratory system, including the larynx, trachea, bronchus, lung, and other related areas. These codes specifically identify early-stage cancers that have not yet invaded deeper tissues.
The section includes detailed subcodes such as D02.0 for carcinoma in situ of the larynx, which is also known by terms like neoplasm of the false vocal cord or carcinoma in situ of the vocal cord. Codes D02.1 and D02.2 indicate carcinoma in situ of the trachea and bronchus/lung, respectively. For instance, D02.21 specifies carcinoma in situ in the right bronchus and lung, while D02.22 refers to the left side. Other codes like D02.3 target carcinoma in situ in other respiratory areas such as the middle ear, nasal cavity, or pleura. If the exact site is unclear, D02.4 or D02.20 identify unspecified locations within the respiratory system. These distinctions guide accurate documentation and treatment planning using the ICD-10 code for carcinoma in situ of the respiratory system and middle ear.
Questions About This Page
How many billable codes are in the D02 range?
Of the 9 codes in this range, 7 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the D02 range classify?
The range classifies carcinoma in situ of middle ear and respiratory system. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
