D02.0 ICD-10-CM Code: Carcinoma in situ of larynx
HCC Buddy Code Card
Digital ICD-10 code-book layout with official code detail, always-visible risk models, Code Trumping, and Buddy coding guidance.
FY 2026 Apr update / Neoplasms (C00-D49) / In situ neoplasms (D00-D09)
D02.0
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceCarcinoma in situ of larynx
Abnormal cells found in the larynx (voice box) that have the potential to become cancer but have not yet invaded deeper tissues.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
Official- Carcinoma in situ of aryepiglottic fold or interarytenoid fold, laryngeal aspect
- Carcinoma in situ of epiglottis (suprahyoid portion)
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for D02.0 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for D02.0 in this effective period.
Excludes 1
Official- carcinoma in situ of aryepiglottic fold or interarytenoid fold NOS (D00.08)
- carcinoma in situ of hypopharyngeal aspect (D00.08)
- carcinoma in situ of marginal zone (D00.08)
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for D02.0 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 D02.0 in this effective period.
Buddy Documentation Tip
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is D02.0 an HCC code?
No. D02.0 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- D02.0
- Description
- Carcinoma in situ of larynx
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF
- —
- Billable
- Yes
- Payment year
- 2026
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
D02.0 is the ICD-10-CM diagnosis code for carcinoma in situ of larynx. Abnormal cells found in the larynx (voice box) that have the potential to become cancer but have not yet invaded deeper tissues. D02.0 sits in the ICD-10-CM chapter for neoplasms (c00-d49), within the section covering in situ neoplasms (d00-d09).
D02.0 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.
Document whether the lesion involves the glottis, supraglottis, or subglottis if available.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for D02.0 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Document whether the lesion involves the glottis, supraglottis, or subglottis if available
- •Distinguish from invasive laryngeal cancer (C32.x codes)