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C50.919
ICD-10-CM
Bilateral Breast Cancer

Understanding Bilateral Breast Cancer, also known as Cancer of both breasts or Bilateral mammary carcinoma, is crucial for accurate healthcare documentation and medical coding. This page provides information on diagnosis codes, clinical terminology, and best practices for documenting Bilateral Breast Cancer in patient records. Learn about staging, treatment options, and relevant medical coding guidelines for Bilateral mammary carcinoma to ensure comprehensive and accurate clinical documentation.

Also known as

Cancer of both breasts
Bilateral mammary carcinoma

Diagnosis Snapshot

Key Facts
  • Definition : Cancer affecting both breasts, often involving different tumor types or stages.
  • Clinical Signs : Breast lumps, nipple changes, skin dimpling, swelling, pain. May vary depending on cancer type.
  • Common Settings : Oncology clinics, breast centers, hospitals, mammography facilities.

Related ICD-10 Code Ranges

Complete code families applicable to AAPC C50.919 Coding
C50.0-C50.9

Malignant neoplasm of breast

Covers cancers specifically affecting the breast tissue.

C79.81

Secondary malignant neoplasm of breast

Indicates breast cancer that has spread from another primary site.

Z85.3

Personal history of malignant neoplasm of breast

Used for patients with a history of breast cancer, now treated or in remission.

Code-Specific Guidance

Decision Tree for

Follow this step-by-step guide to choose the correct ICD-10 code.

Is the breast cancer in situ?

  • Yes

    Is it ductal carcinoma in situ?

  • No

    Is the histology known?

Code Comparison

Related Codes Comparison

When to use each related code

Description
Cancer in both breasts
Cancer in one breast
Breast cancer recurrence

Documentation Best Practices

Documentation Checklist
  • Bilateral breast cancer: Laterality documented (right, left)
  • Bilateral breast cancer: Histology confirmed by pathology report
  • Bilateral breast cancer: Staging (TNM) recorded for each breast
  • Bilateral breast cancer: Date of diagnosis for each breast
  • Bilateral breast cancer: ICD-10 code C50.9 documented

Coding and Audit Risks

Common Risks
  • Laterality Coding

    Incorrect coding of laterality (right, left, bilateral) can lead to inaccurate reporting and reimbursement issues for bilateral breast cancer.

  • Histology Specificity

    Lack of specific histology documentation may hinder accurate coding and staging, impacting treatment planning and cancer registry data.

  • Stage Misclassification

    Inconsistent or incomplete staging documentation for both breasts can result in inaccurate coding and affect quality reporting and reimbursement.

Mitigation Tips

Best Practices
  • ICD-10 C50.9, C50.1, C50.2: Code laterality, histology for accurate reimbursement.
  • CDI: Detailed clinical notes on tumor stage, receptor status improve patient care.
  • Timely pathology, imaging reports crucial for staging, treatment planning, compliance.
  • Genetic testing BRCA1/2 aids risk assessment, personalized treatment options, family counseling.
  • Multidisciplinary team (oncologist, surgeon, radiologist) ensures optimal patient outcomes.

Clinical Decision Support

Checklist
  • Confirm distinct primary tumors via pathology (ICD-10 C50.x)
  • Document laterality and histology for each tumor site
  • Assess family history and genetic risk (BRCA1/2)
  • Review staging and TNM classification for both breasts

Reimbursement and Quality Metrics

Impact Summary
  • Bilateral Breast Cancer reimbursement hinges on accurate coding (C50.x) for optimal claims processing.
  • Quality metrics for bilateral breast cancer involve timely diagnosis, treatment, and patient outcome reporting.
  • Coding accuracy impacts hospital reporting on bilateral breast cancer incidence, affecting resource allocation.
  • Medical billing for bilateral breast cancer requires laterality coding to ensure appropriate reimbursement.

Streamline Your Medical Coding

Let S10.AI help you select the most accurate ICD-10 codes. Our AI-powered assistant ensures compliance and reduces coding errors.

Frequently Asked Questions

Common Questions and Answers

Q: What are the key considerations for staging bilateral synchronous breast cancer versus bilateral metachronous breast cancer in clinical practice?

A: Staging bilateral breast cancer requires careful consideration of whether the presentation is synchronous (occurring simultaneously) or metachronous (occurring at different times). In synchronous bilateral breast cancer, both tumors are considered primary and staged independently according to the AJCC Cancer Staging Manual 8th Edition. This involves assessing each tumor's size, lymph node involvement, and distant metastasis. The overall stage is then assigned based on the higher stage of the two tumors. For metachronous bilateral breast cancer, the second tumor can be considered either a new primary or a metastasis of the first, depending on factors such as the time interval between diagnoses, receptor status concordance, and histologic similarity. Careful evaluation of these factors is crucial for accurate staging and treatment planning. Explore how the St. Gallen International Expert Consensus guidelines can inform your approach to bilateral breast cancer staging. Consider implementing molecular profiling to enhance staging accuracy and personalize treatment strategies.

Q: How does the management of bilateral breast cancer differ based on receptor status (ER, PR, HER2) concordance or discordance between the two tumors?

A: Receptor status (ER, PR, HER2) concordance or discordance significantly influences treatment decisions in bilateral breast cancer. When both tumors have concordant receptor status, systemic therapy is typically directed towards the shared receptor profile. For example, ER-positive/HER2-negative bilateral tumors would likely receive endocrine therapy. However, discordant receptor status presents a greater challenge. If one tumor is HER2-positive, anti-HER2 therapy is generally recommended, even if the other tumor is HER2-negative. Similarly, if one tumor is ER-positive, endocrine therapy may be considered, even if the other is ER-negative. The optimal approach often involves a multidisciplinary discussion considering tumor characteristics, patient preferences, and potential drug interactions. Learn more about the impact of receptor status on treatment decisions and explore the latest clinical trial data for managing receptor discordant bilateral breast cancer.

Quick Tips

Practical Coding Tips
  • Code C50.9 for unspecified laterality
  • Document tumor stage per breast
  • Check for BRCA status codes
  • Code histology if known (e.g., 8500/3)
  • Consider Z80.3 for family history

Documentation Templates

Patient presents with bilateral breast cancer, confirmed by diagnostic mammogram revealing distinct masses in both breasts.  Physical examination reveals palpable lesions in the right and left breast, correlating with imaging findings.  Biopsy of both lesions confirms invasive ductal carcinoma.  Patient reports no significant family history of breast cancer.  Staging workup, including chest x-ray, abdominal ultrasound, and bone scan, is pending to determine extent of disease and establish clinical stage (TNM classification).  Patient is currently asymptomatic aside from the palpable masses.  Differential diagnosis included fibroadenoma and breast cysts, however, biopsy results confirm malignancy.  Treatment plan discussion initiated, including surgical options (bilateral mastectomy, lumpectomy), radiation therapy, chemotherapy, and hormonal therapy.  Patient education provided regarding breast cancer treatment options, potential side effects, and the importance of follow-up care.  Genetic testing and counseling recommended to assess for hereditary predisposition.  Referral made to oncology and surgical oncology for consultation and coordinated care.  ICD-10 code C50.9 (malignant neoplasm of unspecified breast) is documented pending final staging and laterality confirmation for appropriate coding.  This diagnosis significantly impacts medical billing and coding due to the complex treatment regimen anticipated. Continued monitoring and documentation will be crucial for optimizing patient outcomes and ensuring appropriate healthcare reimbursement.
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