Patient presents with complaints of left knee pain, stiffness, and limited range of motion, consistent with symptoms of a possible meniscus tear, cartilage damage, or ligament injury.  Onset of symptoms occurred approximately [duration] ago following [mechanism of injury or gradual onset].  Patient reports [specific symptoms e.g., clicking, popping, locking, swelling, giving way].  Pain is characterized as [character of pain e.g., sharp, dull, aching, throbbing] and located [location of pain e.g., medial joint line, anterior knee, diffuse].  Aggravating factors include [activities that worsen pain e.g., weight-bearing, twisting, stairs].  Alleviating factors include [activities or treatments that lessen pain e.g., rest, ice, elevation].  Physical examination reveals [objective findings e.g., tenderness to palpation along medial joint line, positive McMurray's test, effusion, limited flexion and extension].  Differential diagnosis includes meniscus tear, osteoarthritis, ligament sprain (ACL, MCL, LCL, PCL), patellofemoral pain syndrome, and loose bodies.  Imaging studies, including X-rays and potentially MRI of the left knee, are ordered to evaluate for internal derangement and assess the extent of the injury.  Conservative management with physical therapy and NSAIDs has been [tried/not tried] with [positive/negative/limited] response.  Based on clinical findings and imaging results, the patient is scheduled for a left knee arthroscopy for diagnostic and therapeutic purposes.  Procedure risks and benefits were discussed with the patient, and informed consent was obtained.  Post-operative plan includes pain management, physical therapy, and follow-up appointments to monitor healing and functional recovery.  ICD-10 code[s] [insert applicable code(s) e.g., M25.562, S83.202A] and CPT code[s] [insert applicable code(s) e.g., 29881] will be used for billing and coding purposes.