DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

C00 Malignant neoplasm of lip

  • Header · not billable

C00 is not billable. The category heads 9 billable codes in FY2027: the 9 codes directly below it.

Where it sits

  1. Chapter 2 Neoplasms (C00-D49)
  2. C00-C14 Malignant neoplasms of lip, oral cavity and pharynx (C00-C14)
  3. C00 Malignant neoplasm of lip
Billable codes
9
Subdivisions
9
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
0

Codes in C00

  1. C00.0
    Malignant neoplasm of external upper lip
    Billable
    Inclusion terms 3

    Inclusion terms

    • Malignant neoplasm of lipstick area of upper lip
    • Malignant neoplasm of upper lip NOS
    • Malignant neoplasm of vermilion border of upper lip
  2. C00.1
    Malignant neoplasm of external lower lip
    Billable
    Inclusion terms 3

    Inclusion terms

    • Malignant neoplasm of lower lip NOS
    • Malignant neoplasm of lipstick area of lower lip
    • Malignant neoplasm of vermilion border of lower lip
  3. C00.2
    Malignant neoplasm of external lip, unspecified
    Billable
    Inclusion terms 1

    Inclusion terms

    • Malignant neoplasm of vermilion border of lip NOS
  4. C00.3
    Malignant neoplasm of upper lip, inner aspect
    Billable
    Inclusion terms 4

    Inclusion terms

    • Malignant neoplasm of buccal aspect of upper lip
    • Malignant neoplasm of frenulum of upper lip
    • Malignant neoplasm of mucosa of upper lip
    • Malignant neoplasm of oral aspect of upper lip
  5. C00.4
    Malignant neoplasm of lower lip, inner aspect
    Billable
    Inclusion terms 4

    Inclusion terms

    • Malignant neoplasm of buccal aspect of lower lip
    • Malignant neoplasm of frenulum of lower lip
    • Malignant neoplasm of mucosa of lower lip
    • Malignant neoplasm of oral aspect of lower lip
  6. C00.5
    Malignant neoplasm of lip, unspecified, inner aspect
    Billable
    Inclusion terms 4

    Inclusion terms

    • Malignant neoplasm of buccal aspect of lip, unspecified
    • Malignant neoplasm of frenulum of lip, unspecified
    • Malignant neoplasm of mucosa of lip, unspecified
    • Malignant neoplasm of oral aspect of lip, unspecified
  7. C00.6
    Malignant neoplasm of commissure of lip, unspecified
    Billable
  8. C00.8
    Malignant neoplasm of overlapping sites of lip
    Billable
  9. C00.9
    Malignant neoplasm of lip, unspecified
    Billable

Sources of each column.

Instructions

At C00

Excludes1

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

Use additional code

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

Notes that also apply

Chapter 2 instructions (Notes 8): printed on the chapter 2 page.

Hierarchy