C50.A0
Billable codeMalignant inflammatory neoplasm of unspecified breast
The ICD-10 code for malignant inflammatory neoplasm of unspecified breast is C50.A0.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •Laterality-specific codes exist for this condition — confirm the affected side is documented.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- C50.A1Malignant inflammatory neoplasm of right breast
- C50.A2Malignant inflammatory neoplasm of left breast
- C50.A0Malignant inflammatory neoplasm of unspecified breast
Associated MS-DRGs
C50.A0 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.
- DRG 564Other Musculoskeletal System and Connective Tissue Diagnoses with MCC
- DRG 565Other Musculoskeletal System and Connective Tissue Diagnoses with CC
- DRG 566Other Musculoskeletal System and Connective Tissue Diagnoses without CC/MCC
- DRG 597Malignant Breast Disorders with MCC
- DRG 598Malignant Breast Disorders with CC
- DRG 599Malignant Breast Disorders without CC/MCC