Unspecified lump in the right breast, lower outer quadrant

This code signifies the presence of a palpable, undefined mass or swelling located in the lower outer quadrant of the patient's right breast. It indicates that further diagnostic workup is required to determine the etiology of the lump, as its specific characteristics (e.g., benign, malignant, cystic) are not yet known.

This code is appropriate when a patient presents with a newly discovered or previously unevaluated lump in the lower outer quadrant of the right breast, and the provider's documentation does not specify the nature of the lump beyond its presence and location. It is commonly used as an initial diagnosis pending results from imaging (e.g., mammogram, ultrasound) or biopsy.

• Ensure the documentation clearly specifies "unspecified lump" and the "right breast, lower outer quadrant."
• Avoid using this code if the lump's nature (e.g., fibroadenoma, cyst, malignant neoplasm) is already definitively diagnosed.
• This code is often a primary diagnosis, followed by codes for diagnostic services performed.