D02.3 ICD-10-CM Code: Carcinoma in situ of other parts of respiratory system
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FY 2026 Apr update / Neoplasms (C00-D49) / In situ neoplasms (D00-D09)
D02.3
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceCarcinoma in situ of other parts of respiratory system
Abnormal cell growth in other parts of the respiratory system (such as the trachea, larynx, or nasal passages) that has not yet become invasive cancer.
CMS-HCC V28
00
RAF 0
CMS-HCC V24
00
RAF 0
ACA/HHS
00
RAF 0
ESRD/PACE
00
RAF 0
RXHCC
00
RAF 0
Code Trumping
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Code Book Path
Inclusion Terms
Official- Carcinoma in situ of accessory sinuses
- Carcinoma in situ of middle ear
- Carcinoma in situ of nasal cavities
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for D02.3 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for D02.3 in this effective period.
Excludes 1
Official- carcinoma in situ of ear (external) (skin) (D04.2-)
- carcinoma in situ of nose NOS (D09.8)
- carcinoma in situ of skin of nose (D04.3)
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for D02.3 in this effective period.
Use Additional
Official- 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)
Code Also
OfficialICD-10-CM does not list Code Also instructions for D02.3 in this effective period.
Buddy Documentation Tip
Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.
Is D02.3 an HCC code?
No. D02.3 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
Coder workflow notes
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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
D02.3 is the ICD-10-CM diagnosis code for carcinoma in situ of other parts of respiratory system. Abnormal cell growth in other parts of the respiratory system (such as the trachea, larynx, or nasal passages) that has not yet become invasive cancer. D02.3 sits in the ICD-10-CM chapter for neoplasms (c00-d49), within the section covering in situ neoplasms (d00-d09).
D02.3 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Use this code for carcinoma in situ in respiratory sites other than the bronchus and lung.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for D02.3 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Use this code for carcinoma in situ in respiratory sites other than the bronchus and lung
- •Specify the exact anatomical location in documentation to support accurate coding