ICD-10-CM · Chapter 2 · C00-D49
C50 Malignant neoplasm of breast
Includes
- connective tissue of breast
- Paget's disease of breast
- Paget's disease of nipple
Excludes 1 (cannot be coded together)
- skin of breast (C44.501, C44.511, C44.521, C44.591)
Use Additional Code
- code to identify estrogen, and other hormones and factors receptor status (Z17.-)
Subcodes
Each subcode links to a detail page with full clinical annotations.
| Code | Description | Billable |
|---|---|---|
| C50..0 | Malignant neoplasm of nipple and areola | No |
| C50..01 | Malignant neoplasm of nipple and areola, female | No |
| C50..011 | Malignant neoplasm of nipple and areola, right female breast | Yes |
| C50..012 | Malignant neoplasm of nipple and areola, left female breast | Yes |
| C50..019 | Malignant neoplasm of nipple and areola, unspecified female breast | Yes |
| C50..02 | Malignant neoplasm of nipple and areola, male | No |
| C50..021 | Malignant neoplasm of nipple and areola, right male breast | Yes |
| C50..022 | Malignant neoplasm of nipple and areola, left male breast | Yes |
| C50..029 | Malignant neoplasm of nipple and areola, unspecified male breast | Yes |
| C50..1 | Malignant neoplasm of central portion of breast | No |
| C50..11 | Malignant neoplasm of central portion of breast, female | No |
| C50..111 | Malignant neoplasm of central portion of right female breast | Yes |
| C50..112 | Malignant neoplasm of central portion of left female breast | Yes |
| C50..119 | Malignant neoplasm of central portion of unspecified female breast | Yes |
| C50..12 | Malignant neoplasm of central portion of breast, male | No |
| C50..121 | Malignant neoplasm of central portion of right male breast | Yes |
| C50..122 | Malignant neoplasm of central portion of left male breast | Yes |
| C50..129 | Malignant neoplasm of central portion of unspecified male breast | Yes |
| C50..2 | Malignant neoplasm of upper-inner quadrant of breast | No |
| C50..21 | Malignant neoplasm of upper-inner quadrant of breast, female | No |
| C50..211 | Malignant neoplasm of upper-inner quadrant of right female breast | Yes |
| C50..212 | Malignant neoplasm of upper-inner quadrant of left female breast | Yes |
| C50..219 | Malignant neoplasm of upper-inner quadrant of unspecified female breast | Yes |
| C50..22 | Malignant neoplasm of upper-inner quadrant of breast, male | No |
| C50..221 | Malignant neoplasm of upper-inner quadrant of right male breast | Yes |
| C50..222 | Malignant neoplasm of upper-inner quadrant of left male breast | Yes |
| C50..229 | Malignant neoplasm of upper-inner quadrant of unspecified male breast | Yes |
| C50..3 | Malignant neoplasm of lower-inner quadrant of breast | No |
| C50..31 | Malignant neoplasm of lower-inner quadrant of breast, female | No |
| C50..311 | Malignant neoplasm of lower-inner quadrant of right female breast | Yes |
| C50..312 | Malignant neoplasm of lower-inner quadrant of left female breast | Yes |
| C50..319 | Malignant neoplasm of lower-inner quadrant of unspecified female breast | Yes |
| C50..32 | Malignant neoplasm of lower-inner quadrant of breast, male | No |
| C50..321 | Malignant neoplasm of lower-inner quadrant of right male breast | Yes |
| C50..322 | Malignant neoplasm of lower-inner quadrant of left male breast | Yes |
| C50..329 | Malignant neoplasm of lower-inner quadrant of unspecified male breast | Yes |
| C50..4 | Malignant neoplasm of upper-outer quadrant of breast | No |
| C50..41 | Malignant neoplasm of upper-outer quadrant of breast, female | No |
| C50..411 | Malignant neoplasm of upper-outer quadrant of right female breast | Yes |
| C50..412 | Malignant neoplasm of upper-outer quadrant of left female breast | Yes |
| C50..419 | Malignant neoplasm of upper-outer quadrant of unspecified female breast | Yes |
| C50..42 | Malignant neoplasm of upper-outer quadrant of breast, male | No |
| C50..421 | Malignant neoplasm of upper-outer quadrant of right male breast | Yes |
| C50..422 | Malignant neoplasm of upper-outer quadrant of left male breast | Yes |
| C50..429 | Malignant neoplasm of upper-outer quadrant of unspecified male breast | Yes |
| C50..5 | Malignant neoplasm of lower-outer quadrant of breast | No |
| C50..51 | Malignant neoplasm of lower-outer quadrant of breast, female | No |
| C50..511 | Malignant neoplasm of lower-outer quadrant of right female breast | Yes |
| C50..512 | Malignant neoplasm of lower-outer quadrant of left female breast | Yes |
| C50..519 | Malignant neoplasm of lower-outer quadrant of unspecified female breast | Yes |
| C50..52 | Malignant neoplasm of lower-outer quadrant of breast, male | No |
| C50..521 | Malignant neoplasm of lower-outer quadrant of right male breast | Yes |
| C50..522 | Malignant neoplasm of lower-outer quadrant of left male breast | Yes |
| C50..529 | Malignant neoplasm of lower-outer quadrant of unspecified male breast | Yes |
| C50..6 | Malignant neoplasm of axillary tail of breast | No |
| C50..61 | Malignant neoplasm of axillary tail of breast, female | No |
| C50..611 | Malignant neoplasm of axillary tail of right female breast | Yes |
| C50..612 | Malignant neoplasm of axillary tail of left female breast | Yes |
| C50..619 | Malignant neoplasm of axillary tail of unspecified female breast | Yes |
| C50..62 | Malignant neoplasm of axillary tail of breast, male | No |
| C50..621 | Malignant neoplasm of axillary tail of right male breast | Yes |
| C50..622 | Malignant neoplasm of axillary tail of left male breast | Yes |
| C50..629 | Malignant neoplasm of axillary tail of unspecified male breast | Yes |
| C50..8 | Malignant neoplasm of overlapping sites of breast | No |
| C50..81 | Malignant neoplasm of overlapping sites of breast, female | No |
| C50..811 | Malignant neoplasm of overlapping sites of right female breast | Yes |
| C50..812 | Malignant neoplasm of overlapping sites of left female breast | Yes |
| C50..819 | Malignant neoplasm of overlapping sites of unspecified female breast | Yes |
| C50..82 | Malignant neoplasm of overlapping sites of breast, male | No |
| C50..821 | Malignant neoplasm of overlapping sites of right male breast | Yes |
| C50..822 | Malignant neoplasm of overlapping sites of left male breast | Yes |
| C50..829 | Malignant neoplasm of overlapping sites of unspecified male breast | Yes |
| C50..9 | Malignant neoplasm of breast of unspecified site | No |
| C50..91 | Malignant neoplasm of breast of unspecified site, female | No |
| C50..911 | Malignant neoplasm of unspecified site of right female breast | Yes |
| C50..912 | Malignant neoplasm of unspecified site of left female breast | Yes |
| C50..919 | Malignant neoplasm of unspecified site of unspecified female breast | Yes |
| C50..92 | Malignant neoplasm of breast of unspecified site, male | No |
| C50..921 | Malignant neoplasm of unspecified site of right male breast | Yes |
| C50..922 | Malignant neoplasm of unspecified site of left male breast | Yes |
| C50..929 | Malignant neoplasm of unspecified site of unspecified male breast | Yes |
| C50..A | Malignant inflammatory neoplasm of breast | No |
| C50..A0 | Malignant inflammatory neoplasm of unspecified breast | Yes |
| C50..A1 | Malignant inflammatory neoplasm of right breast | Yes |
| C50..A2 | Malignant inflammatory neoplasm of left breast | Yes |
Plain-language term for this code
The following entry in the US Medical Glossary corresponds to ICD-10-CM category C50:
- Breast Cancer — Cáncer de mama
Last reviewed: September 2026