ICD-10 Code C46.51 – Kaposi’s sarcoma of right lung (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C46.51 – Kaposi’s sarcoma of right lung
What it is
C46.51 identifies Kaposi’s sarcoma involving the right lung. Use it when documentation specifies the malignancy is in the right lung, not just the chest or respiratory tract.
Clinical signs
Clinical features vary; refer to documentation. Lung involvement may be noted on imaging, bronchoscopy, or pathology, with respiratory findings such as cough, dyspnea, or hemoptysis.
When to use this code
Use this code when the provider documents Kaposi’s sarcoma of the right lung, including a confirmed primary or metastatic site designation. It is appropriate when laterality is clearly stated in the record. If the note only says lung or pulmonary Kaposi’s sarcoma without laterality, check documentation before assigning this code.
Do not use for
Do not use it for Kaposi’s sarcoma of the left lung, unspecified lung, or other thoracic sites. Do not use if the record does not clearly identify right lung involvement.
Coding tip
Verify that laterality is documented in the final diagnosis or pathology report before coding C46.51.