Patient presents with complaints of left ankle pain and swelling consistent with a left ankle strain. Onset of symptoms occurred on [Date of onset] during [Mechanism of injury - e.g., running, twisting, fall].  Patient reports [Severity - e.g., mild, moderate, severe] pain localized to the [Location - e.g., lateral, medial, anterior] aspect of the left ankle, exacerbated by weight-bearing and ambulation.  Physical examination reveals [Findings - e.g., tenderness to palpation, edema, ecchymosis, limited range of motion] in the left ankle.  Negative for [Negative findings - e.g., gross deformity, instability, crepitus, neurological deficit].  Ankle X-rays were [Ordered/performed] and were [Positive/negative] for fracture or dislocation.  Diagnosis of left ankle strain is made.  Treatment plan includes RICE therapy (rest, ice, compression, elevation), NSAIDs for pain management, and referral to physical therapy for rehabilitation.  Patient advised to follow up in [Duration - e.g., 1-2 weeks] for reevaluation of symptoms and progress.  ICD-10 code: S93.401A (Sprain of unspecified ligament of left ankle, initial encounter).  Differential diagnoses considered included ankle fracture, ankle sprain, and Achilles tendonitis.