Answer :
Final answer:
The ICD-10 code for left breast cancer receiving chemotherapy could include C77.3 for lymph node involvement or C79.81 if metastasized, along with Z51.11 for the chemotherapy encounter.
Explanation:
The ICD-10 code for a patient with left breast cancer would depend on the specific details of the diagnosis. However, generally, the ICD-10 code for secondary and unspecified malignant neoplasm of lymph nodes of the axilla or upper limb is C77.3, and if the left breast cancer has metastasized, codes such as C79.81 for secondary malignant neoplasm of the breast could be used. When the patient receives chemotherapy in the oncologist's office, an additional code for the encounter for antineoplastic chemotherapy, Z51.11, might also be assigned.
Two locations where you would likely find an ICD code are medical laboratories and health-care management systems, where they are used to identify tests and verify treatments, respectively.
