What is the medical billing code 9921425?

CPT 99214 is for office or other outpatient

visit for the evaluation and management of an established patient,

which requires at least 2 of these 3 key components: A detailed

history; a detailed examination; and medical decision making of

moderate complexity. -25 is a modifier that identifies significant,

separately identifiable evaluation and management service by the

same physician or other qualified health care professional on the

same day of the procedure or other service.