C00.1

Billable

ChapterC00–D49

Ranksubcategory

Official Description

Malignant neoplasm of external lower lip

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 2: Neoplasms (C00-D49).

Instructional Notes

Includes

Malignant neoplasm of lower lip NOS
Malignant neoplasm of lipstick area of lower lip
Malignant neoplasm of vermilion border of lower lip

General instructions are available for the parent sections:

View C00 Notes

Clinical Hierarchy

CH2Neoplasms (C00-D49)

C00-C14Malignant neoplasms of lip, oral cavity and pharynx (C00-C14)

C00Malignant neoplasm of lip

C00.1Malignant neoplasm of external lower lip

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to C00.1:

categoryC00

Malignant neoplasm of lip

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to C00.1. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

4 raw paths

Neoplasm, neoplastic4 unique routes

lip(4 variants)

external

lower→C00.1

lipstick area

lower→C00.1

vermilion border

lower→C00.1

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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