C03 is the ICD-10 code for Malignant neoplasm of gum. It is a three-character category divided into 3 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block C00–C14 (Malignant neoplasms of lip, oral cavity and pharynx) in Chapter II, Neoplasms.
- Code type
- Category (3 characters)
- Chapter
- II · C00–D48
- Classification
- WHO ICD-10, 2019 version
What C03 includes
Conditions and terms that are coded here.
- alveolar (ridge) mucosa
- gingiva
What C03 excludes
Conditions that look similar but belong under another code.
- malignant odontogenic neoplasms C41.0-C41.1
Subcodes of C03
C03 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
DC03Kræft i tandkødet
C03Ikenen syöpä
C03Bösartige Neubildung des Zahnfleisches
C03Tumeur maligne de la gencive
C03maligne neoplasma van tandvlees
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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