C50.A
C50.A — Malignant inflammatory neoplasm of breast
Non-billable headerICD-10-CM
C50.A is a non-billable header ICD-10-CM code for malignant inflammatory neoplasm of breast. It cannot be billed on its own: choose one of the more specific child codes below.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Inflammatory breast cancer (IBC)
Other codes that can never be billed with C50.A
These codes carry an Excludes1 note pointing at C50.A. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading C50.A alone.
- N61Inflammatory disorders of breast
Risk adjustment
C50.A does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead C50.A
3 child codes. Green means billable.
Related codes at this level
Codes that share C50. If C50.A is not quite right, the correct code is usually one of these.
- C50.0Malignant neoplasm of nipple and areola
- C50.1Malignant neoplasm of central portion of breast
- C50.2Malignant neoplasm of upper-inner quadrant of breast
- C50.3Malignant neoplasm of lower-inner quadrant of breast
- C50.4Malignant neoplasm of upper-outer quadrant of breast
- C50.5Malignant neoplasm of lower-outer quadrant of breast
- C50.6Malignant neoplasm of axillary tail of breast
- C50.8Malignant neoplasm of overlapping sites of breast
- C50.9Malignant neoplasm of breast of unspecified site
Questions about C50.A
- Is C50.A a billable ICD-10-CM code?
- No. C50.A is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does C50.A sit in the tabular list?
- Neoplasms (C00-D49), in the block Malignant neoplasms of breast (C50).