Patient presents with complaints consistent with tinea cruris, commonly known as jock itch.  The patient reports pruritus, erythema, and a scaling rash in the inguinal region, extending to the inner thighs and perianal area.  The affected skin appears reddish-brown and well-demarcated, with a raised, scaly border.  Symptoms include burning, itching, and discomfort, exacerbated by sweating and friction.  The patient denies fever or systemic symptoms.  No lymphadenopathy is noted.  Differential diagnoses considered include intertrigo, candidiasis, and contact dermatitis.  Based on the clinical presentation and patient history, a diagnosis of tinea cruris is made.  Treatment plan includes topical antifungal cream, such as clotrimazole or terbinafine, applied twice daily to the affected area for two to four weeks.  Patient education provided on hygiene practices, including keeping the area clean and dry, avoiding tight-fitting clothing, and practicing good hand hygiene.  Follow-up is recommended in two weeks to assess treatment response.  ICD-10 code B35.3 is assigned.  Medical billing codes may include 99213 for an established patient office visit or 99203 for a new patient office visit, depending on the complexity of the encounter.