Final answer:
The code for personal history of Hodgkin's disease is V10.79, which is part of the ICD-9 coding system legacy, now generally replaced by ICD-10 codes.
Step-by-step explanation:
The code indicating personal history of Hodgkin's disease is V10.79. This categorization falls under the legacy ICD-9 coding system, where the 'V' codes indicate a personal history of various conditions, in this case, malignancies. 'V10' specifies a personal history of malignant neoplasm, and '.79' corresponds specifically to Hodgkin's disease. Note that in current medical coding practice (as of my knowledge cutoff in 2023), ICD-10 would be used instead of ICD-9.