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C002026

Non-billable

Malignant neoplasm of lip

C00 is a non-billable ICD-10-CM category (header) code for Malignant neoplasm of lip; a more specific code below it is required for claims in the FY2026 code set.

Clinical Notes

  • Malignant melanoma of lip (C43.0)
  • Merkel cell carcinoma of lip (C4A.0)
  • Other and unspecified malignant neoplasm of skin of lip (C44.0-)

Frequently Asked Questions

Code Hierarchy
C00
Malignant neoplasm of lip
C00.0
...external upper lip
C00.1
...external lower lip
C00.2
...external lip, unspecified
C00.3
...upper lip, inner aspect
C00.4
...lower lip, inner aspect
C00.5
...lip, unspecified, inner aspect
C00.6
...commissure of lip, unspecified
C00.8
...overlapping sites of lip
C00.9
...lip, unspecified

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Related MS-DRGs
50,418 Medicare hospitalizations across 5 DRGs for codes in C00

Top DRGs associated with codes in this category:

011TRACHEOSTOMY FOR FACE, MOUTH AND NECK DIAGNOSES OR LARYNGECTOMY WITH MCC15,192
012TRACHEOSTOMY FOR FACE, MOUTH AND NECK DIAGNOSES OR LARYNGECTOMY WITH CC13,824
146EAR, NOSE, MOUTH AND THROAT MALIGNANCY WITH MCC10,890
147EAR, NOSE, MOUTH AND THROAT MALIGNANCY WITH CC6,201
013TRACHEOSTOMY FOR FACE, MOUTH AND NECK DIAGNOSES OR LARYNGECTOMY WITHOUT CC/MCC2,907
Official Guidelines
Chapter 2: Neoplasms

Official coding guidelines for C00-D49

Malignant neoplasm of lip - ICD-10 Code C00 | FindICD10