C00

Non-Billable
ChapterC00–D49
Rankcategory
Description

Malignant neoplasm of lip

About ICD-10-CM code C00

The ICD-10-CM tabular list places Malignant neoplasm of lip at code C00, inside C00-D49 Neoplasms, within Malignant neoplasms of lip, oral cavity and pharynx (C00-C14). You should not submit this code on claims since it lacks billing specificity, use a child code.

Metadata & Insights
  • Non-billable category (requires more specific sub-code).
  • Chapter 2: Neoplasms (C00-D49).

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • malignant melanoma of lip (C43.0)
  • Merkel cell carcinoma of lip (C4A.0)
  • other and unspecified malignant neoplasm of skin of lip (C44.0-)
Use Additional Code
  • code to identify:
  • alcohol abuse and dependence (F10.-)
  • history of tobacco dependence (Z87.891)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

Clinical Hierarchy

BillableHas subcodes
CH2Neoplasms (C00-D49)
C00-C14Malignant neoplasms of lip, oral cavity and pharynx (C00-C14)
C00Malignant neoplasm of lipNot billable
C00.0Malignant neoplasm of external upper lipBillable
C00.1Malignant neoplasm of external lower lipBillable
C00.2Malignant neoplasm of external lip, unspecifiedBillable
C00.3Malignant neoplasm of upper lip, inner aspectBillable
C00.4Malignant neoplasm of lower lip, inner aspectBillable
C00.5Malignant neoplasm of lip, unspecified, inner aspectBillable
C00.6Malignant neoplasm of commissure of lip, unspecifiedBillable
C00.8Malignant neoplasm of overlapping sites of lipBillable
C00.9Malignant neoplasm of lip, unspecifiedBillable

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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