Coding and coverage · ICD-10-CM

D02

D02.0 Carcinoma in situ of larynx

BillableNo payment HCCChapter 2
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Instructional notes

Chapter 2

Notes
  • 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).

Section D00-D09

Includes
  • Bowen's disease
  • erythroplasia
  • grade III intraepithelial neoplasia
  • Queyrat's erythroplasia

D02

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
Use additional codeAdd a second code for the full picture.
  • 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)

This code

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • 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)
Inclusion terms
  • Carcinoma in situ of aryepiglottic fold or interarytenoid fold, laryngeal aspect
  • Carcinoma in situ of epiglottis (suprahyoid portion)

Chapter 2: Neoplasms · D00-D09 In situ neoplasms (D00-D09)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

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