Patient presents with complaints consistent with a medial meniscus tear.  Symptoms include medial knee pain, clicking, catching, locking, and swelling.  Onset of symptoms occurred [duration] ago and was [acute or insidious] following [mechanism of injury, e.g., twisting injury while playing sports, or gradual onset with repetitive squatting].  Patient reports [intermittent or constant] pain, rated [pain scale rating out of 10] in severity, exacerbated by [activities such as squatting, kneeling, twisting] and alleviated by [activities such as rest, ice, elevation].  Physical examination reveals tenderness along the medial joint line, positive McMurray's test, and limited range of motion.  Differential diagnosis includes medial collateral ligament injury, patellofemoral pain syndrome, and osteoarthritis.  Preliminary diagnosis of medial meniscus tear is made based on history, physical examination, and clinical findings.  Imaging, such as MRI of the left or right knee, is recommended to confirm the diagnosis and assess the extent of the tear.  Treatment plan may include conservative management with physical therapy, pain management with NSAIDs or other analgesics, corticosteroid injection, or surgical intervention such as meniscus repair or meniscectomy.  Patient education provided on activity modification, bracing, and expected recovery time.  Follow-up appointment scheduled in [duration] to assess treatment response and discuss further management options.  ICD-10 code M23.2_ (specify laterality and tear type if known) is considered.