C50.31 (Malignant neoplasm of lower-inner quadrant of breast, female) is an umbrella ICD-10-CM medical diagnosis code in the Neoplasms chapter. It identifies cases of malignant neoplasm of lower-inner quadrant of breast, female for clinical documentation, billing and epidemiological tracking.

ICD-10-CM · Category

C50.31 — Malignant neoplasm of lower-inner quadrant of breast, female

Chapter C00-D49: Neoplasms

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Sub-codes under C50.31

C50.311Malig neoplm of lower-inner quadrant of right female breastC50.312Malig neoplasm of lower-inner quadrant of left female breastC50.319Malig neoplasm of lower-inner quadrant of unsp female breast

Related diagnoses

C50.32Malignant neoplasm of lower-inner quadrant of breast, male

Common questions about C50.31 (Malignant neoplasm of lower-inner quadrant of breast, female)

What does ICD-10 code C50.31 mean?
C50.31 is the ICD-10-CM 2025 code for Malignant neoplasm of lower-inner quadrant of breast, female. ICD-10-CM is the medical coding system used by clinicians, hospitals and insurers worldwide to classify diseases and conditions in a standard way.
Is C50.31 a billable diagnosis code?
C50.31 is a category-level (umbrella) code rather than a billable specific code. For billing purposes, clinicians typically use a more specific sub-code under C50.31. Browse the sub-codes listed on this page.
Which ICD-10 chapter does C50.31 belong to?
C50.31 belongs to the chapter "Neoplasms" (codes C00-D49). ICD-10-CM organises codes into 22 chapters by body system or condition type, which helps clinicians navigate related diagnoses.
Where can I get plain-language information about Malignant neoplasm of lower-inner quadrant of breast, female?
For a plain-language explanation of Malignant neoplasm of lower-inner quadrant of breast, female, ask GoDavaii's Health AI - it explains medical conditions in 22+ Indian languages, free, with no signup. Tap "Ask GoDavaii AI about Malignant neoplasm of lower-inner quadrant of breast, female" above to get a personalised answer.

Source: ICD-10-CM 2025 (Centers for Medicare & Medicaid Services, public domain). Codes valid from October 1, 2024. CMS source ↗