The ICD-9 code for MRSA is 041.12. Formally known as methicillin-resistant staphylococcus aureus, MRSA is an infection caused by bacteria that can become resistant to antibiotics used to treat staph infections.
ICD-9 refers to the International Classification of Diseases, Ninth Revision, which is the current version of the classification system. The ICD is the official system of classification of the health care industry. It provides a standardized system of classifying diseases and medical conditions to aid in the collection and processing of statistical information on an international basis. The World Health Organization oversees the ICD and occasionally revises the classification, making adjustments as necessary. As of 2014, the ICD is in the process of revising the current ICD-9 classification system, to be replaced by ICD-10.