ICD-10 Code C00.1 - Malignant neoplasm of external lower lip

ICD-10-CM Diagnosis Code C00.1

Diagnosis Code: C00.1 (Raw: C001)

Description: Malignant neoplasm of external lower lip

Classification: International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM)

Fiscal Year: 2026

CMS Section 111 Status: Valid for reporting.

Overview & Clinical Details

ICD-10-CM code C00.1 is designated for Malignant neoplasm of external lower lip. In medical documentation and insurance billing, this code is utilized to specify medical diagnosis for patient records, reimbursement workflows, and compliance under CMS Section 111 mandatory insurer reporting guidelines.