C50.919
Malignant neoplasm of unspecified site of unspecified female breast
Neoplasms Billable
Quick Reference
Breast cancer diagnosis without specification of location or laterality
Clinical Information
When to Use This Code
Breast cancer diagnosis without specification of location or laterality
Common Clinical Scenarios
- Breast cancer diagnosis
- Oncology treatment planning
- Chemotherapy or radiation
- Breast cancer surveillance
Documentation Requirements
- Specify breast location when possible (upper outer quadrant, etc.)
- Document laterality (right, left, bilateral)
- Record histology (ductal, lobular), stage, grade
- Note hormone receptor status (ER, PR, HER2)
Coding Guidelines
Inclusion Terms
These terms are included in this code:
Breast cancerBreast carcinomaMammary carcinoma
Exclusion Terms
Do NOT use this code for:
- Benign breast lesion (D24.-)
- Carcinoma in situ (D05.-)
- Male breast cancer (C50.92-)
Coding Notes
Use site-specific codes when location documented
Always specify laterality when known
Code metastases separately
Related ICD-10 Codes
Consider these related codes based on patient presentation:
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Code
C50.919
Category
Neoplasms
Billable Status
Billable
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