2027 ICD-10-CM Diagnosis Code D02.3Carcinoma in situ of other parts of respiratory system
ICD-10-CM Codes›C00–D49›D00-D09›D02
- Billable — Valid for Submission
- Chronic Condition
D02.3 is a billable ICD-10-CM diagnosis code for carcinoma in situ of other parts of respiratory system. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 180 through 182. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Respiratory cancers.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Carcinoma in situ of accessory sinus
- Carcinoma in situ of ethmoidal sinus
- Carcinoma in situ of eustachian tube
- Carcinoma in situ of frontal sinus
- Carcinoma in situ of mastoid air cells
- Carcinoma in situ of maxillary sinus
- Carcinoma in situ of middle ear
- Carcinoma in situ of middle ear and mastoid
- Carcinoma in situ of nasal cavity
- Carcinoma in situ of nasal cavity and nasopharynx
- Carcinoma in situ of nasopharynx
- Carcinoma in situ of parietal pleura
- Carcinoma in situ of pleura
- Carcinoma in situ of sphenoidal sinus
- Carcinoma in situ of tympanic antrum
- Carcinoma in situ of tympanic cavity
- Carcinoma in situ of vestibule of nose
- Carcinoma in situ of visceral pleura
- Mass of petrous part of temporal bone
- Neoplasm of eustachian tube
- Neoplasm of mastoid air cells
- Neoplasm of mastoid antrum
- Neoplasm of middle ear and mastoid
- Neoplasm of nasal cavity and nasopharynx
- Neoplasm of nasal vestibule
- Neoplasm of parietal pleura
- Neoplasm of visceral pleura
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to D02.3: its own notes plus those printed at D02, block D00-D09, and Chapter 2. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- Bowen's disease
- erythroplasia
- grade III intraepithelial neoplasia
- Queyrat's erythroplasia
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Carcinoma in situ of accessory sinuses
- Carcinoma in situ of middle ear
- Carcinoma in situ of nasal cavities
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Notes
General instructions on how these codes are used.
- Functional activity
- All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
- Morphology [Histology]
- Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
- Primary malignant neoplasms overlapping site boundaries
- A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
- Malignant neoplasm of ectopic tissue
- Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name D02.3, its category, or a range that includes it.
Applicable To 1
These notes mention D02.3.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Table of NeoplasmsClinical
Anatomical sites in the Table of Neoplasms that reference this code family.
| Site | Malig. Primary | Malig. Secondary | Ca in situ | Benign | Uncertain | Unspec. |
|---|---|---|---|---|---|---|
| antrum (Highmore) (maxillary) | C31.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| antrum (Highmore) (maxillary) › tympanicum | C30.1 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| auditory › canal (external) (skin) › internal | C30.1 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| auditory › tube | C30.1 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| auricular canal (external) [See Also: Neoplasm, skin, ear] › internal | C30.1 | C78.39 | D02.3 | D14.0 | D38.5 | D49.2 |
| cartilage (articular) (joint) NEC [See Also: Neoplasm, bone] › nose, nasal | C30.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| cavity › nasal | C30.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| cavity › tympanic | C30.1 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| concha [See Also: Neoplasm, skin, ear] › nose | C30.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| ear (external) [See Also: Neoplasm, skin, ear] › inner | C30.1 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| ear (external) [See Also: Neoplasm, skin, ear] › middle | C30.1 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| ethmoid (sinus) | C31.1 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| eustachian tube | C30.1 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| frontal › sinus | C31.2 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| mastoid (air cells) (antrum) (cavity) | C30.1 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| maxilla, maxillary (superior) › antrum | C31.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| maxilla, maxillary (superior) › sinus | C31.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| mucosa › nasal | C30.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| nares, naris (anterior) (posterior) | C30.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| nose, nasal › cartilage | C30.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| nose, nasal › cavity | C30.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| nose, nasal › fossa | C30.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| nose, nasal › internal | C30.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| nose, nasal › mucosa | C30.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| nose, nasal › septum | C30.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| nose, nasal › turbinate (mucosa) | C30.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| nose, nasal › vestibule | C30.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| nostril | C30.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| septum › nasal | C30.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| sinus (accessory) | C31.9 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| sinus (accessory) › ethmoidal | C31.1 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| sinus (accessory) › frontal | C31.2 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| sinus (accessory) › maxillary | C31.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| sinus (accessory) › nasal, paranasal NEC | C31.9 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| sinus (accessory) › sphenoid | C31.3 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| sphenoid | C31.3 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| sphenoid › sinus | C31.3 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| turbinate (bone) › nasal | C30.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| tympanic cavity | C30.1 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
| vestibule › nose | C30.0 | C78.39 | D02.3 | D14.0 | D38.5 | D49.1 |
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Convert D02.3 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About D02.3Overview
What is the ICD-10 code for carcinoma in situ of other parts of respiratory system?
The ICD-10-CM code for carcinoma in situ of other parts of respiratory system is D02.3 (sometimes written as D023). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is D02.3 (Carcinoma in situ of middle ear and respiratory system) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report carcinoma in situ of other parts of respiratory system on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does D02.3 group to?
When carcinoma in situ of other parts of respiratory system is the principal diagnosis on an inpatient stay, it groups to MS-DRG 181, 180, 182, with relative weights from 0.7436 to 1.7800 depending on complications. Higher weights mean higher Medicare reimbursement.
Can D02.3 be reported with a code from D04.2?
Not as a rule. The Excludes1 note on D02.3 lists "carcinoma in situ of ear (external) (skin) (D04.2-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
Does D02.3 need an additional code?
When the condition applies, yes. The Use Additional Code note at D02, which applies to D02.3, reads: 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.-); and 1 more listed in the Instructional Notes section. The additional code is reported after D02.3.
