Patient presents with complaints consistent with osteomyelitis of the foot.  Symptoms include localized foot pain, swelling, redness, warmth, and tenderness to palpation.  The patient may also exhibit systemic symptoms such as fever, chills, and malaise.  Onset of symptoms is reported as gradual or acute, depending on the underlying cause.  Medical history includes type 2 diabetes mellitus, a significant risk factor for osteomyelitis.  Physical examination reveals edema, erythema, and limited range of motion in the affected foot.  Differential diagnosis includes cellulitis, gout, diabetic foot ulcer, and Charcot neuroarthropathy.  Laboratory tests ordered include a complete blood count with differential, erythrocyte sedimentation rate, C-reactive protein, and blood cultures.  Imaging studies, including plain radiographs, MRI, and or bone scan, are planned to confirm the diagnosis and assess the extent of bone involvement.  Initial treatment includes intravenous antibiotic therapy based on suspected causative organism pending culture results.  Surgical debridement may be necessary if medical management is unsuccessful or if there is evidence of abscess formation or necrotic bone.  Patient education provided on wound care, medication adherence, and follow-up appointments.  The patient is instructed to monitor for signs and symptoms of worsening infection, such as increased pain, drainage, or fever, and to return for reevaluation as needed.  ICD-10 code M86.671, Osteomyelitis of right foot, is provisionally assigned, pending confirmation with imaging studies.  CPT codes for evaluation and management, laboratory tests, and imaging studies will be documented and coded according to services rendered.