Patient presents with complaints of right knee pain consistent with chondromalacia patellae.  The patient reports anterior knee pain, described as aching or dull, exacerbated by activities such as stair climbing, prolonged sitting, and squatting.  Symptoms include crepitus with range of motion and occasional sensations of catching or buckling in the knee.  On physical examination, there is tenderness to palpation along the medial and lateral patellar facets.  Positive patellar grind test and Clark's sign elicit pain.  Range of motion is within normal limits, though pain is noted with flexion and extension.  No effusion or ligamentous instability is appreciated.  Assessment: Right knee chondromalacia patella, likely grade II based on patient-reported symptoms and physical exam findings.  Differential diagnoses considered include patellofemoral pain syndrome, meniscus tear, and osteoarthritis.  Plan: Conservative management is recommended initially, including physical therapy focusing on quadriceps strengthening, hamstring stretching, and patellar mobilization.  Patient education provided regarding activity modification and avoidance of aggravating factors.  NSAIDs prescribed for pain management.  Follow-up scheduled in four weeks to assess response to treatment.  If symptoms persist, further imaging, such as an MRI of the right knee, may be considered to evaluate for cartilage damage.  ICD-10 code M22.42, Right knee pain, will be used for billing purposes. CPT codes for the evaluation and management visit and any procedures performed will be documented separately.