ICD-10-CM C04: Malignant neoplasm of floor of mouth

ICD-10-CM Diagnosis Code (2025)

Official Description for C04

Malignant neoplasm of floor of mouth

Coding Notes & Guidelines for C04

Use Additional Code
  • code to identify:
  • alcohol abuse and dependence (F10.-)
  • history of tobacco dependence (Z87.891)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)
Inclusion Terms

Malignant neoplasm of anterior to the premolar-canine junction

Child Codes (More Specific Codes for C04):

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

About ICD-10-CM Code C04 (Malignant neoplasm of floor of mouth)

ICD-10-CM code C04 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM C04 became effective on October 1, 2024.

This page provides detailed information about C04 - Malignant neoplasm of floor of mouth. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Malignant neoplasm of floor of mouth.