C04 (Malignant neoplasm of floor of mouth) is an umbrella ICD-10-CM medical diagnosis code in the Neoplasms chapter. It identifies cases of malignant neoplasm of floor of mouth for clinical documentation, billing and epidemiological tracking.

ICD-10-CM · Category

C04 — Malignant neoplasm of floor of mouth

Chapter C00-D49: Neoplasms

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Sub-codes under C04

C04.0Malignant neoplasm of anterior floor of mouthC04.1Malignant neoplasm of lateral floor of mouthC04.8Malignant neoplasm of overlapping sites of floor of mouthC04.9Malignant neoplasm of floor of mouth, unspecified

Common questions about C04 (Malignant neoplasm of floor of mouth)

What does ICD-10 code C04 mean?
C04 is the ICD-10-CM 2025 code for Malignant neoplasm of floor of mouth. ICD-10-CM is the medical coding system used by clinicians, hospitals and insurers worldwide to classify diseases and conditions in a standard way.
Is C04 a billable diagnosis code?
C04 is a category-level (umbrella) code rather than a billable specific code. For billing purposes, clinicians typically use a more specific sub-code under C04. Browse the sub-codes listed on this page.
Which ICD-10 chapter does C04 belong to?
C04 belongs to the chapter "Neoplasms" (codes C00-D49). ICD-10-CM organises codes into 22 chapters by body system or condition type, which helps clinicians navigate related diagnoses.
Where can I get plain-language information about Malignant neoplasm of floor of mouth?
For a plain-language explanation of Malignant neoplasm of floor of mouth, ask GoDavaii's Health AI - it explains medical conditions in 90+ languages, free, with no signup. Tap "Ask GoDavaii AI about Malignant neoplasm of floor of mouth" above to get a personalised answer.

Source: ICD-10-CM 2025 (Centers for Medicare & Medicaid Services, public domain). Codes valid from October 1, 2024. CMS source ↗