Patient presents with complaints of right knee pain consistent with osteoarthritis.  Symptoms include chronic knee pain, stiffness, and limited range of motion.  The patient reports increased pain with weight-bearing activities and experiences crepitus with movement.  Onset of symptoms was gradual over the past several months.  The patient denies any recent trauma or injury to the right knee.  Physical examination reveals tenderness to palpation along the medial joint line, mild effusion, and reduced flexion and extension compared to the left knee.  Radiographic imaging of the right knee demonstrates joint space narrowing, osteophyte formation, and subchondral sclerosis, confirming the diagnosis of osteoarthritis.  Assessment:  Osteoarthritis, right knee.  Plan:  Conservative management is recommended, including NSAIDs for pain relief, physical therapy to improve range of motion and strengthen supporting musculature, and weight management counseling.  Patient education provided on joint protection strategies and assistive devices.  Follow-up scheduled in four weeks to assess response to treatment and consider intra-articular corticosteroid injection if symptoms persist.  ICD-10 code M17.11, right knee osteoarthritis.