Primary osteoarthritis, right shoulder

This code signifies the presence of primary osteoarthritis affecting the right shoulder joint. It indicates degenerative joint disease that is not secondary to trauma, infection, or another underlying systemic condition. The condition is characterized by cartilage breakdown, bone spur formation, and joint pain.

Use this code when documentation explicitly states a diagnosis of primary osteoarthritis localized to the right shoulder. This diagnosis is typically supported by clinical examination findings (e.g., crepitus, reduced range of motion, pain with movement) and imaging studies (e.g., X-rays showing joint space narrowing, osteophytes).

• Ensure documentation specifies "primary" osteoarthritis; differentiate from secondary osteoarthritis (e.g., post-traumatic).
• Verify the laterality is explicitly stated as "right shoulder" to avoid incorrect coding.
• Do not use this code for unspecified shoulder osteoarthritis or osteoarthritis affecting other joints.