Final answer:
The correct diagnosis code for the patient's condition is L24.9. The encounter code is Z23, and the code for poisoning by, adverse effect of and underdosing of topical antibiotics is T36.8X5A.
Step-by-step explanation:
The correct answer is a) L24.9, Z23, T36.8X5A.
The patient's condition is dermatitis due to prescription topical antibiotic cream. Dermatitis is a skin condition characterized by inflammation of the skin. The diagnosis code for dermatitis is L24.9. The code Z23 represents encounter for immunization, and T36.8X5A represents poisoning by, adverse effect of and underdosing of topical antibiotics.