Patient presents with complaints of low back pain, specifically localized to the sacroiliac joint region.  The onset of pain is described as (acuteinsidiousgradual) and began (duration) ago.  Patient reports the pain as (sharpdullthrobbingachingburning) and (constantintermittent), with radiation to the (buttocks, groin, thigh, leg) noted.  Aggravating factors include (prolonged standing, sitting, walking, bending, twisting, climbing stairs, transitioning from sit to stand).  Alleviating factors include (rest, ice, heat, over-the-counter pain relievers such as ibuprofen or naproxen).  Physical examination reveals tenderness to palpation over the sacroiliac joint, positive findings on provocative maneuvers such as the FABER test, compression test, distraction test, and Gaenslen's test.  Range of motion in the lumbar spine is (limitednormal) with pain noted upon (flexion, extension, lateral bending, rotation).  Neurological examination of the lower extremities is unremarkable.  Differential diagnoses considered include lumbar radiculopathy, degenerative disc disease, piriformis syndrome, and facet joint pain.  Based on the patient's history, physical examination findings, and clinical presentation, the diagnosis of sacroiliac joint pain is established.  Treatment plan includes conservative management with physical therapy focusing on strengthening core muscles and improving flexibility, NSAIDs for pain relief, and activity modification.  Patient education regarding proper body mechanics and posture provided.  Follow-up scheduled in (duration) to assess response to treatment.  If symptoms persist or worsen, consider referral to a pain specialist or orthopedist for further evaluation and management, including potential corticosteroid injections or radiofrequency ablation.  ICD-10 code: M54.81 (Sacroiliac joint pain).