Rheumatoid nodule, left hip

This code signifies the presence of a rheumatoid nodule, a subcutaneous granulomatous lesion, specifically located on the left hip. These nodules are a common extra-articular manifestation of rheumatoid arthritis, often firm and non-tender.

Apply this code when documentation clearly identifies a rheumatoid nodule on the patient's left hip. This typically occurs in patients with a confirmed diagnosis of rheumatoid arthritis. Supporting documentation includes physical exam findings, imaging reports, or pathology results confirming the nodule's presence and location.

• Always code the underlying rheumatoid arthritis first, as the nodule is a manifestation of the systemic disease.
• Ensure laterality is precisely documented (left vs. right hip) to avoid coding errors.
• Do not confuse rheumatoid nodules with other types of hip masses or subcutaneous lesions; specific documentation of "rheumatoid nodule" is required.