DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

C44 Other and unspecified malignant neoplasm of skin

  • Header · not billable

C44 is not billable. The category heads 101 billable codes in FY2027, grouped under 10 subdivisions.

Index → code

  • Adenocarcinomaceruminous → C44.29-
  • Carcinoma (malignant)ceruminous → C44.29-
  • Carcinoma (malignant)basal cell (pigmented) (see also Neoplasm, skin, malignant) → C44.91

Where it sits

  1. Chapter 2 Neoplasms (C00-D49)
  2. C43-C44 Melanoma and other malignant neoplasms of skin (C43-C44)
  3. C44 Other and unspecified malignant neoplasm of skin
Billable codes
101
Subdivisions
10
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
8

Codes in C44

  1. C44.0
    Other and unspecified malignant neoplasm of skin of lip
    Header
    Excludes1 1

    Excludes1

    • malignant neoplasm of lip (C00.-) C00
  2. C44.00
    Unspecified malignant neoplasm of skin of lip
    Billable
  3. C44.01
    Basal cell carcinoma of skin of lip
    Billable
  4. C44.02
    Squamous cell carcinoma of skin of lip
    Billable
  5. C44.09
    Other specified malignant neoplasm of skin of lip
    Billable
  6. C44.1
    Other and unspecified malignant neoplasm of skin of eyelid, including canthus
    Header
    Excludes1 1

    Excludes1

    • connective tissue of eyelid (C49.0) C49.0
  7. C44.10
    Unspecified malignant neoplasm of skin of eyelid, including canthus
    Header
  8. C44.101
    Unspecified malignant neoplasm of skin of unspecified eyelid, including canthus
    Billable
  9. C44.102
    Unspecified malignant neoplasm of skin of right eyelid, including canthus
    Header
  10. C44.1021
    Unspecified malignant neoplasm of skin of right upper eyelid, including canthus
    Billable
  11. C44.1022
    Unspecified malignant neoplasm of skin of right lower eyelid, including canthus
    Billable
  12. C44.109
    Unspecified malignant neoplasm of skin of left eyelid, including canthus
    Header
  13. C44.1091
    Unspecified malignant neoplasm of skin of left upper eyelid, including canthus
    Billable
  14. C44.1092
    Unspecified malignant neoplasm of skin of left lower eyelid, including canthus
    Billable
  15. C44.11
    Basal cell carcinoma of skin of eyelid, including canthus
    Header
  16. C44.111
    Basal cell carcinoma of skin of unspecified eyelid, including canthus
    Billable
  17. C44.112
    Basal cell carcinoma of skin of right eyelid, including canthus
    Header
  18. C44.1121
    Basal cell carcinoma of skin of right upper eyelid, including canthus
    Billable
  19. C44.1122
    Basal cell carcinoma of skin of right lower eyelid, including canthus
    Billable
  20. C44.119
    Basal cell carcinoma of skin of left eyelid, including canthus
    Header
  21. C44.1191
    Basal cell carcinoma of skin of left upper eyelid, including canthus
    Billable
  22. C44.1192
    Basal cell carcinoma of skin of left lower eyelid, including canthus
    Billable
  23. C44.12
    Squamous cell carcinoma of skin of eyelid, including canthus
    Header
  24. C44.121
    Squamous cell carcinoma of skin of unspecified eyelid, including canthus
    Billable
  25. C44.122
    Squamous cell carcinoma of skin of right eyelid, including canthus
    Header
  26. C44.1221
    Squamous cell carcinoma of skin of right upper eyelid, including canthus
    Billable
  27. C44.1222
    Squamous cell carcinoma of skin of right lower eyelid, including canthus
    Billable
  28. C44.129
    Squamous cell carcinoma of skin of left eyelid, including canthus
    Header
  29. C44.1291
    Squamous cell carcinoma of skin of left upper eyelid, including canthus
    Billable
  30. C44.1292
    Squamous cell carcinoma of skin of left lower eyelid, including canthus
    Billable
  31. C44.13
    Sebaceous cell carcinoma of skin of eyelid, including canthus
    Header
  32. C44.131
    Sebaceous cell carcinoma of skin of unspecified eyelid, including canthus
    Billable
  33. C44.132
    Sebaceous cell carcinoma of skin of right eyelid, including canthus
    Header
  34. C44.1321
    Sebaceous cell carcinoma of skin of right upper eyelid, including canthus
    Billable
  35. C44.1322
    Sebaceous cell carcinoma of skin of right lower eyelid, including canthus
    Billable
  36. C44.139
    Sebaceous cell carcinoma of skin of left eyelid, including canthus
    Header
  37. C44.1391
    Sebaceous cell carcinoma of skin of left upper eyelid, including canthus
    Billable
  38. C44.1392
    Sebaceous cell carcinoma of skin of left lower eyelid, including canthus
    Billable
  39. C44.19
    Other specified malignant neoplasm of skin of eyelid, including canthus
    Header
  40. C44.191
    Other specified malignant neoplasm of skin of unspecified eyelid, including canthus
    Billable
  41. C44.192
    Other specified malignant neoplasm of skin of right eyelid, including canthus
    Header
  42. C44.1921
    Other specified malignant neoplasm of skin of right upper eyelid, including canthus
    Billable
  43. C44.1922
    Other specified malignant neoplasm of skin of right lower eyelid, including canthus
    Billable
  44. C44.199
    Other specified malignant neoplasm of skin of left eyelid, including canthus
    Header
  45. C44.1991
    Other specified malignant neoplasm of skin of left upper eyelid, including canthus
    Billable
  46. C44.1992
    Other specified malignant neoplasm of skin of left lower eyelid, including canthus
    Billable
  47. C44.2
    Other and unspecified malignant neoplasm of skin of ear and external auricular canal
    Header
    Excludes1 1

    Excludes1

    • connective tissue of ear (C49.0) C49.0
  48. C44.20
    Unspecified malignant neoplasm of skin of ear and external auricular canal
    Header
  49. C44.201
    Unspecified malignant neoplasm of skin of unspecified ear and external auricular canal
    Billable
  50. C44.202
    Unspecified malignant neoplasm of skin of right ear and external auricular canal
    Billable
  51. C44.209
    Unspecified malignant neoplasm of skin of left ear and external auricular canal
    Billable
  52. C44.21
    Basal cell carcinoma of skin of ear and external auricular canal
    Header
  53. C44.211
    Basal cell carcinoma of skin of unspecified ear and external auricular canal
    Billable
  54. C44.212
    Basal cell carcinoma of skin of right ear and external auricular canal
    Billable
  55. C44.219
    Basal cell carcinoma of skin of left ear and external auricular canal
    Billable
  56. C44.22
    Squamous cell carcinoma of skin of ear and external auricular canal
    Header
  57. C44.221
    Squamous cell carcinoma of skin of unspecified ear and external auricular canal
    Billable
  58. C44.222
    Squamous cell carcinoma of skin of right ear and external auricular canal
    Billable
  59. C44.229
    Squamous cell carcinoma of skin of left ear and external auricular canal
    Billable
  60. C44.29
    Other specified malignant neoplasm of skin of ear and external auricular canal
    Header
  61. C44.291
    Other specified malignant neoplasm of skin of unspecified ear and external auricular canal
    Billable
  62. C44.292
    Other specified malignant neoplasm of skin of right ear and external auricular canal
    Billable
  63. C44.299
    Other specified malignant neoplasm of skin of left ear and external auricular canal
    Billable
  64. C44.3
    Other and unspecified malignant neoplasm of skin of other and unspecified parts of face
    Header
  65. C44.30
    Unspecified malignant neoplasm of skin of other and unspecified parts of face
    Header
  66. C44.300
    Unspecified malignant neoplasm of skin of unspecified part of face
    Billable
  67. C44.301
    Unspecified malignant neoplasm of skin of nose
    Billable
  68. C44.309
    Unspecified malignant neoplasm of skin of other parts of face
    Billable
  69. C44.31
    Basal cell carcinoma of skin of other and unspecified parts of face
    Header
  70. C44.310
    Basal cell carcinoma of skin of unspecified parts of face
    Billable
  71. C44.311
    Basal cell carcinoma of skin of nose
    Billable
  72. C44.319
    Basal cell carcinoma of skin of other parts of face
    Billable
  73. C44.32
    Squamous cell carcinoma of skin of other and unspecified parts of face
    Header
  74. C44.320
    Squamous cell carcinoma of skin of unspecified parts of face
    Billable
  75. C44.321
    Squamous cell carcinoma of skin of nose
    Billable
  76. C44.329
    Squamous cell carcinoma of skin of other parts of face
    Billable
  77. C44.39
    Other specified malignant neoplasm of skin of other and unspecified parts of face
    Header
  78. C44.390
    Other specified malignant neoplasm of skin of unspecified parts of face
    Billable
  79. C44.391
    Other specified malignant neoplasm of skin of nose
    Billable
  80. C44.399
    Other specified malignant neoplasm of skin of other parts of face
    Billable
  81. C44.4
    Other and unspecified malignant neoplasm of skin of scalp and neck
    Header
  82. C44.40
    Unspecified malignant neoplasm of skin of scalp and neck
    Billable
  83. C44.41
    Basal cell carcinoma of skin of scalp and neck
    Billable
  84. C44.42
    Squamous cell carcinoma of skin of scalp and neck
    Billable
  85. C44.49
    Other specified malignant neoplasm of skin of scalp and neck
    Billable
  86. C44.5
    Other and unspecified malignant neoplasm of skin of trunk
    Header
    Excludes1 2

    Excludes1

  87. C44.50
    Unspecified malignant neoplasm of skin of trunk
    Header
  88. C44.500
    Unspecified malignant neoplasm of anal skin
    Billable
    Inclusion terms 2

    Inclusion terms

    • Unspecified malignant neoplasm of anal margin
    • Unspecified malignant neoplasm of perianal skin
  89. C44.501
    Unspecified malignant neoplasm of skin of breast
    Billable
  90. C44.509
    Unspecified malignant neoplasm of skin of other part of trunk
    Billable
  91. C44.51
    Basal cell carcinoma of skin of trunk
    Header
  92. C44.510
    Basal cell carcinoma of anal skin
    Billable
    Inclusion terms 2

    Inclusion terms

    • Basal cell carcinoma of anal margin
    • Basal cell carcinoma of perianal skin
  93. C44.511
    Basal cell carcinoma of skin of breast
    Billable
  94. C44.519
    Basal cell carcinoma of skin of other part of trunk
    Billable
  95. C44.52
    Squamous cell carcinoma of skin of trunk
    Header
  96. C44.520
    Squamous cell carcinoma of anal skin
    Billable
    Inclusion terms 2

    Inclusion terms

    • Squamous cell carcinoma of anal margin
    • Squamous cell carcinoma of perianal skin
  97. C44.521
    Squamous cell carcinoma of skin of breast
    Billable
  98. C44.529
    Squamous cell carcinoma of skin of other part of trunk
    Billable
  99. C44.59
    Other specified malignant neoplasm of skin of trunk
    Header
  100. C44.590
    Other specified malignant neoplasm of anal skin
    Billable
    Inclusion terms 2

    Inclusion terms

    • Other specified malignant neoplasm of anal margin
    • Other specified malignant neoplasm of perianal skin
  101. C44.591
    Other specified malignant neoplasm of skin of breast
    Billable
  102. C44.599
    Other specified malignant neoplasm of skin of other part of trunk
    Billable
  103. C44.6
    Other and unspecified malignant neoplasm of skin of upper limb, including shoulder
    Header
  104. C44.60
    Unspecified malignant neoplasm of skin of upper limb, including shoulder
    Header
  105. C44.601
    Unspecified malignant neoplasm of skin of unspecified upper limb, including shoulder
    Billable
  106. C44.602
    Unspecified malignant neoplasm of skin of right upper limb, including shoulder
    Billable
  107. C44.609
    Unspecified malignant neoplasm of skin of left upper limb, including shoulder
    Billable
  108. C44.61
    Basal cell carcinoma of skin of upper limb, including shoulder
    Header
  109. C44.611
    Basal cell carcinoma of skin of unspecified upper limb, including shoulder
    Billable
  110. C44.612
    Basal cell carcinoma of skin of right upper limb, including shoulder
    Billable
  111. C44.619
    Basal cell carcinoma of skin of left upper limb, including shoulder
    Billable
  112. C44.62
    Squamous cell carcinoma of skin of upper limb, including shoulder
    Header
  113. C44.621
    Squamous cell carcinoma of skin of unspecified upper limb, including shoulder
    Billable
  114. C44.622
    Squamous cell carcinoma of skin of right upper limb, including shoulder
    Billable
  115. C44.629
    Squamous cell carcinoma of skin of left upper limb, including shoulder
    Billable
  116. C44.69
    Other specified malignant neoplasm of skin of upper limb, including shoulder
    Header
  117. C44.691
    Other specified malignant neoplasm of skin of unspecified upper limb, including shoulder
    Billable
  118. C44.692
    Other specified malignant neoplasm of skin of right upper limb, including shoulder
    Billable
  119. C44.699
    Other specified malignant neoplasm of skin of left upper limb, including shoulder
    Billable
  120. C44.7
    Other and unspecified malignant neoplasm of skin of lower limb, including hip
    Header
  121. C44.70
    Unspecified malignant neoplasm of skin of lower limb, including hip
    Header
  122. C44.701
    Unspecified malignant neoplasm of skin of unspecified lower limb, including hip
    Billable
  123. C44.702
    Unspecified malignant neoplasm of skin of right lower limb, including hip
    Billable
  124. C44.709
    Unspecified malignant neoplasm of skin of left lower limb, including hip
    Billable
  125. C44.71
    Basal cell carcinoma of skin of lower limb, including hip
    Header
  126. C44.711
    Basal cell carcinoma of skin of unspecified lower limb, including hip
    Billable
  127. C44.712
    Basal cell carcinoma of skin of right lower limb, including hip
    Billable
  128. C44.719
    Basal cell carcinoma of skin of left lower limb, including hip
    Billable
  129. C44.72
    Squamous cell carcinoma of skin of lower limb, including hip
    Header
  130. C44.721
    Squamous cell carcinoma of skin of unspecified lower limb, including hip
    Billable
  131. C44.722
    Squamous cell carcinoma of skin of right lower limb, including hip
    Billable
  132. C44.729
    Squamous cell carcinoma of skin of left lower limb, including hip
    Billable
  133. C44.79
    Other specified malignant neoplasm of skin of lower limb, including hip
    Header
  134. C44.791
    Other specified malignant neoplasm of skin of unspecified lower limb, including hip
    Billable
  135. C44.792
    Other specified malignant neoplasm of skin of right lower limb, including hip
    Billable
  136. C44.799
    Other specified malignant neoplasm of skin of left lower limb, including hip
    Billable
  137. C44.8
    Other and unspecified malignant neoplasm of overlapping sites of skin
    Header
  138. C44.80
    Unspecified malignant neoplasm of overlapping sites of skin
    Billable
  139. C44.81
    Basal cell carcinoma of overlapping sites of skin
    Billable
  140. C44.82
    Squamous cell carcinoma of overlapping sites of skin
    Billable
  141. C44.89
    Other specified malignant neoplasm of overlapping sites of skin
    Billable
  142. C44.9
    Other and unspecified malignant neoplasm of skin, unspecified
    Header
  143. C44.90
    Unspecified malignant neoplasm of skin, unspecified
    Billable
    Inclusion terms 1

    Inclusion terms

    • Malignant neoplasm of unspecified site of skin
  144. C44.91
    Basal cell carcinoma of skin, unspecified
    Billable
  145. C44.92
    Squamous cell carcinoma of skin, unspecified
    Billable
  146. C44.99
    Other specified malignant neoplasm of skin, unspecified
    Billable

Sources of each column.

Instructions

At C44

Includes

  • malignant neoplasm of sebaceous glands
  • malignant neoplasm of sweat glands

Excludes1

  • Kaposi's sarcoma of skin (C46.0) C46.0
  • malignant melanoma of skin (C43.-) C43
  • malignant neoplasm of skin of genital organs (C51-C52, C60.-, C63.2) C51 C52 C60 C63.2
  • Merkel cell carcinoma (C4A.-) C4A

Notes that also apply

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

Index entries

  • Adenocarcinomaceruminous → C44.29-
  • Carcinoma (malignant)ceruminous → C44.29-
  • Carcinoma (malignant)basal cell (pigmented) (see also Neoplasm, skin, malignant) → C44.91
  • Cyst (colloid) (mucous) (simple) (retention)pilonidal (infected) (rectum)malignant → C44.59-
  • Adenocarcinomaapocrineunspecified site → C44.99
  • Carcinoma (malignant)apocrineunspecified site → C44.99
  • Paget's diseaseextramammaryanusmargin → C44.590
  • Paget's diseaseextramammaryanusskin → C44.590

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy