DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

C50 Malignant neoplasm of breast

  • Header · not billable

C50 is not billable. The category heads 57 billable codes in FY2027, grouped under 10 subdivisions.

Index → code

  • Cancerbreast → C50.91-
  • Paget's diseasebreast (female) → C50.01-
  • Carcinoma (malignant)lipid-rich (female) → C50.91-

Where it sits

  1. Chapter 2 Neoplasms (C00-D49)
  2. C50 Malignant neoplasms of breast (C50)
  3. C50 Malignant neoplasm of breast
Billable codes
57
Subdivisions
10
CC / MCC codes
0 / 0
HCC V28 codes
57
New FY2027
0
Index entries
60

Codes in C50

  1. C50.0
    Malignant neoplasm of nipple and areola
    Header
  2. C50.01
    Malignant neoplasm of nipple and areola, female
    Header
  3. C50.011
    Malignant neoplasm of nipple and areola, right female breast
    Billable23
  4. C50.012
    Malignant neoplasm of nipple and areola, left female breast
    Billable23
  5. C50.019
    Malignant neoplasm of nipple and areola, unspecified female breast
    Billable23
  6. C50.02
    Malignant neoplasm of nipple and areola, male
    Header
  7. C50.021
    Malignant neoplasm of nipple and areola, right male breast
    Billable23
  8. C50.022
    Malignant neoplasm of nipple and areola, left male breast
    Billable23
  9. C50.029
    Malignant neoplasm of nipple and areola, unspecified male breast
    Billable23
  10. C50.1
    Malignant neoplasm of central portion of breast
    Header
  11. C50.11
    Malignant neoplasm of central portion of breast, female
    Header
  12. C50.111
    Malignant neoplasm of central portion of right female breast
    Billable23
  13. C50.112
    Malignant neoplasm of central portion of left female breast
    Billable23
  14. C50.119
    Malignant neoplasm of central portion of unspecified female breast
    Billable23
  15. C50.12
    Malignant neoplasm of central portion of breast, male
    Header
  16. C50.121
    Malignant neoplasm of central portion of right male breast
    Billable23
  17. C50.122
    Malignant neoplasm of central portion of left male breast
    Billable23
  18. C50.129
    Malignant neoplasm of central portion of unspecified male breast
    Billable23
  19. C50.2
    Malignant neoplasm of upper-inner quadrant of breast
    Header
  20. C50.21
    Malignant neoplasm of upper-inner quadrant of breast, female
    Header
  21. C50.211
    Malignant neoplasm of upper-inner quadrant of right female breast
    Billable23
  22. C50.212
    Malignant neoplasm of upper-inner quadrant of left female breast
    Billable23
  23. C50.219
    Malignant neoplasm of upper-inner quadrant of unspecified female breast
    Billable23
  24. C50.22
    Malignant neoplasm of upper-inner quadrant of breast, male
    Header
  25. C50.221
    Malignant neoplasm of upper-inner quadrant of right male breast
    Billable23
  26. C50.222
    Malignant neoplasm of upper-inner quadrant of left male breast
    Billable23
  27. C50.229
    Malignant neoplasm of upper-inner quadrant of unspecified male breast
    Billable23
  28. C50.3
    Malignant neoplasm of lower-inner quadrant of breast
    Header
  29. C50.31
    Malignant neoplasm of lower-inner quadrant of breast, female
    Header
  30. C50.311
    Malignant neoplasm of lower-inner quadrant of right female breast
    Billable23
  31. C50.312
    Malignant neoplasm of lower-inner quadrant of left female breast
    Billable23
  32. C50.319
    Malignant neoplasm of lower-inner quadrant of unspecified female breast
    Billable23
  33. C50.32
    Malignant neoplasm of lower-inner quadrant of breast, male
    Header
  34. C50.321
    Malignant neoplasm of lower-inner quadrant of right male breast
    Billable23
  35. C50.322
    Malignant neoplasm of lower-inner quadrant of left male breast
    Billable23
  36. C50.329
    Malignant neoplasm of lower-inner quadrant of unspecified male breast
    Billable23
  37. C50.4
    Malignant neoplasm of upper-outer quadrant of breast
    Header
  38. C50.41
    Malignant neoplasm of upper-outer quadrant of breast, female
    Header
  39. C50.411
    Malignant neoplasm of upper-outer quadrant of right female breast
    Billable23
  40. C50.412
    Malignant neoplasm of upper-outer quadrant of left female breast
    Billable23
  41. C50.419
    Malignant neoplasm of upper-outer quadrant of unspecified female breast
    Billable23
  42. C50.42
    Malignant neoplasm of upper-outer quadrant of breast, male
    Header
  43. C50.421
    Malignant neoplasm of upper-outer quadrant of right male breast
    Billable23
  44. C50.422
    Malignant neoplasm of upper-outer quadrant of left male breast
    Billable23
  45. C50.429
    Malignant neoplasm of upper-outer quadrant of unspecified male breast
    Billable23
  46. C50.5
    Malignant neoplasm of lower-outer quadrant of breast
    Header
  47. C50.51
    Malignant neoplasm of lower-outer quadrant of breast, female
    Header
  48. C50.511
    Malignant neoplasm of lower-outer quadrant of right female breast
    Billable23
  49. C50.512
    Malignant neoplasm of lower-outer quadrant of left female breast
    Billable23
  50. C50.519
    Malignant neoplasm of lower-outer quadrant of unspecified female breast
    Billable23
  51. C50.52
    Malignant neoplasm of lower-outer quadrant of breast, male
    Header
  52. C50.521
    Malignant neoplasm of lower-outer quadrant of right male breast
    Billable23
  53. C50.522
    Malignant neoplasm of lower-outer quadrant of left male breast
    Billable23
  54. C50.529
    Malignant neoplasm of lower-outer quadrant of unspecified male breast
    Billable23
  55. C50.6
    Malignant neoplasm of axillary tail of breast
    Header
  56. C50.61
    Malignant neoplasm of axillary tail of breast, female
    Header
  57. C50.611
    Malignant neoplasm of axillary tail of right female breast
    Billable23
  58. C50.612
    Malignant neoplasm of axillary tail of left female breast
    Billable23
  59. C50.619
    Malignant neoplasm of axillary tail of unspecified female breast
    Billable23
  60. C50.62
    Malignant neoplasm of axillary tail of breast, male
    Header
  61. C50.621
    Malignant neoplasm of axillary tail of right male breast
    Billable23
  62. C50.622
    Malignant neoplasm of axillary tail of left male breast
    Billable23
  63. C50.629
    Malignant neoplasm of axillary tail of unspecified male breast
    Billable23
  64. C50.8
    Malignant neoplasm of overlapping sites of breast
    Header
  65. C50.81
    Malignant neoplasm of overlapping sites of breast, female
    Header
  66. C50.811
    Malignant neoplasm of overlapping sites of right female breast
    Billable23
  67. C50.812
    Malignant neoplasm of overlapping sites of left female breast
    Billable23
  68. C50.819
    Malignant neoplasm of overlapping sites of unspecified female breast
    Billable23
  69. C50.82
    Malignant neoplasm of overlapping sites of breast, male
    Header
  70. C50.821
    Malignant neoplasm of overlapping sites of right male breast
    Billable23
  71. C50.822
    Malignant neoplasm of overlapping sites of left male breast
    Billable23
  72. C50.829
    Malignant neoplasm of overlapping sites of unspecified male breast
    Billable23
  73. C50.9
    Malignant neoplasm of breast of unspecified site
    Header
  74. C50.91
    Malignant neoplasm of breast of unspecified site, female
    Header
  75. C50.911
    Malignant neoplasm of unspecified site of right female breast
    Billable23
  76. C50.912
    Malignant neoplasm of unspecified site of left female breast
    Billable23
  77. C50.919
    Malignant neoplasm of unspecified site of unspecified female breast
    Billable23
  78. C50.92
    Malignant neoplasm of breast of unspecified site, male
    Header
  79. C50.921
    Malignant neoplasm of unspecified site of right male breast
    Billable23
  80. C50.922
    Malignant neoplasm of unspecified site of left male breast
    Billable23
  81. C50.929
    Malignant neoplasm of unspecified site of unspecified male breast
    Billable23
  82. C50.A
    Malignant inflammatory neoplasm of breast
    Header
    Inclusion terms 1

    Inclusion terms

    • Inflammatory breast cancer (IBC)
  83. C50.A0
    Malignant inflammatory neoplasm of unspecified breast
    Billable23
  84. C50.A1
    Malignant inflammatory neoplasm of right breast
    Billable23
  85. C50.A2
    Malignant inflammatory neoplasm of left breast
    Billable23

Sources of each column.

Instructions

At C50

Includes

  • connective tissue of breast
  • Paget's disease of breast
  • Paget's disease of nipple

Excludes1

Use additional code

  • code to identify estrogen, and other hormones and factors receptor status (Z17.-) Z17

Notes that also apply

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

Index entries

  • Paget's diseasebreast (female) → C50.01-
  • Cancerbreast → C50.91-
  • Carcinoma (malignant)lipid-rich (female) → C50.91-
  • Disease, diseasednipplePaget's → C50.01-
  • Paget's diseasemalignantbreast (female) → C50.01-
  • Paget's diseasemalignantunspecified site (female) → C50.01-
  • Paget's diseasebreast (female)male → C50.02-
  • Adenocarcinomainfiltrating ductunspecified site (female) → C50.91-
  • Adenocarcinomainflammatoryunspecified site (female) → C50.91-
  • Adenocarcinomalobularunspecified site (female) → C50.91-
  • Carcinoma (malignant)ductular, infiltratingunspecified site (female) → C50.91-
  • Carcinoma (malignant)inflammatoryunspecified site (female) → C50.91-
  • Carcinoma (malignant)lobular (infiltrating)unspecified site (female) → C50.91-
  • Carcinoma (malignant)lipid-rich (female)male → C50.92-
  • Disease, diseasednipplePaget'sfemale → C50.01-
  • Disease, diseasednipplePaget'smale → C50.02-
  • Paget's diseasemalignantbreast (female)male → C50.02-
  • Paget's diseasemalignantunspecified site (female)male → C50.02-
  • Adenocarcinomaductinfiltratingunspecified site (female) → C50.91-
  • Carcinoma (malignant)ductalwith lobularunspecified site (female) → C50.91-
  • Carcinoma (malignant)infiltratingductunspecified site (female) → C50.91-
  • Carcinoma (malignant)infiltratingductularunspecified site (female) → C50.91-
  • Carcinoma (malignant)infiltratinglobularunspecified site (female) → C50.91-
  • Carcinoma (malignant)lobular (infiltrating)with intraductalunspecified site (female) → C50.91-
  • Disease, diseasedbreastPaget'sfemale, unspecified side → C50.91-
  • Adenocarcinomainfiltrating ductunspecified site (female)male → C50.92-
  • Adenocarcinomainflammatoryunspecified site (female)male → C50.92-
  • Adenocarcinomalobularunspecified site (female)male → C50.92-
  • Carcinoma (malignant)ductular, infiltratingunspecified site (female)male → C50.92-
  • Carcinoma (malignant)inflammatoryunspecified site (female)male → C50.92-
  • Carcinoma (malignant)lobular (infiltrating)unspecified site (female)male → C50.92-
  • Disease, diseasedbreastPaget'smale, unspecified side → C50.92-
  • Adenocarcinomaintraductalpapillarywith invasionunspecified site (female) → C50.91-
  • Adenocarcinomapapillaryintraductal (noninfiltrating)with invasionunspecified site (female) → C50.91-
  • Carcinoma (malignant)duct (cell)infiltratingwith lobular carcinoma (in situ)unspecified site (female) → C50.91-
  • Carcinoma (malignant)duct (cell)infiltratingspecified siteunspecified site (female) → C50.91-
  • Carcinoma (malignant)infiltratingductwith lobularunspecified site (female) → C50.91-
  • Carcinoma (malignant)intraductal (noninfiltrating)papillarywith invasionunspecified site (female) → C50.91-
  • Carcinoma (malignant)medullarywithlymphoid stromaunspecified site (female) → C50.91-
  • Carcinoma (malignant)papillaryintraductal (noninfiltrating)with invasionunspecified site (female) → C50.91-

20 more, longer entries are not listed; the search box finds them by word.

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